43rd week of 2017 patent applcation highlights part 68 |
Patent application number | Title | Published |
20170310181 | ROTARY ELECTRICAL MACHINE WHICH MINIMISES THE ELECTROMAGNETIC DISTURBANCES SUSTAINED BY A MEASUREMENT ELEMENT - The invention relates mainly to a rotary electrical machine comprising:
| 2017-10-26 |
20170310182 | ARMATURE WINDING OF ROTATING ELECTRICAL MACHINE - According to one embodiment, there is provided a three-phase even-numbered-pole two-layered armature winding housed in forty five slots per pole provided in a laminated iron core. Coil pieces corresponding to first and second parallel circuits are arranged in the first phase belt, coil pieces corresponding to fourth and fifth parallel circuits are arranged in the second phase belt, coil pieces corresponding to the third parallel circuit are arranged in the first and second phase belts, and the upper coil pieces and the lower coil pieces of each parallel circuit are placed in same-numbered positions from a pole center. | 2017-10-26 |
20170310183 | MOTOR WITH BUS-BAR ASSEMBLY - Disclose herein is a motor. The motor includes a stator assembly that has a stator core, an upper insulator covering and insulating an upper portion of the stator core, and a lower insulator covering and insulating a lower portion of the stator core, and a bus-bar assembly that has a bus-bar having a plurality of connecting terminals formed on a circular bus and a contact portion electrically connected to a coil, and a bus-bar housing accommodating the bus-bar therein. The contact portion has a bent portion formed by bending distal ends of the connecting terminals upward, a contact piece located to face the bent portion, and a connection piece which connects the bent portion with the contact piece, and the bus-bar housing is coupled to a bus-bar seat defined in a central portion of the upper insulator. | 2017-10-26 |
20170310184 | Insulation System For Electrical Machines - The present disclosure relates to electrical machines. The teachings thereof may be embodied in insulation systems for electrical machines, more particularly in the high-voltage range, for example, in an insulation system for electrical machines including: an insulator comprising a porous insulating material; an impregnator comprising a catalytically or thermally curable resin material having oxirane functionalities, or a mixture of different reactive resin materials having oxirane functionalities; and at least one thermally activatable or encapsulated hardener material. | 2017-10-26 |
20170310185 | ACTIVE PART OF AN ELECTRIC MACHINE - An active part of an electric machine includes a plurality of coils, each having a sub-conductor. The coils are formed by windings of the sub-conductors thereof. The windings of a coil each have a predetermined winding length. In addition, the active part has a carrier part, in the grooves of which, the coils are arranged. The coils have a winding head region which projects from an end surface of the carrier part. The coils are also arranged in the form of a tiered winding. At least one of the coils has a V-shaped cross-section in the winding head region, as a result of an arrangement of its sub-conductor | 2017-10-26 |
20170310186 | MOTOR SLOT WEDGE WITH SEALING STRUCTURE AND COMBINATION DEVICE - A motor slot wedge having a sealing structure is provided. An outer wall of the slot wedge is provided with a groove, and a thermal expansion material is provided in the groove, and the thermal expansion material, after expanding with heat, is in contact with an inner wall of an iron core tooth slot. A combination structure of a motor slot wedge having a sealing structure and a motor iron core is further provided, and includes the motor iron core having an iron core tooth slot and the motor slot wedge. A sealing structure is formed between the slot wedge and the inner wall of the slot of the iron core, thereby preventing the moisture from entering the inside of the slot of the iron core and damaging the insulation structure accordingly, and preventing varnish loss after varnish vacuum pressure impregnation. | 2017-10-26 |
20170310187 | ELECTRIC MOTOR CONTROLLER FOR HIGH-MOISTURE APPLICATIONS AND METHOD OF MANUFACTURE - An electric motor control system and methods of manufacture are provided. The system includes a power supply module including a printed circuit board (PCB) and a plurality of power processing components configured to convert an input voltage into an output voltage. The system also includes a motor management module including an encapsulated, heat-sharing package for housing a plurality of moisture-sensitive driver components configured to convert the output voltage from the power supply module and provide output voltages for application to windings of the electric motor. | 2017-10-26 |
20170310188 | BEARING ASSEMBLY FOR ELECTRICAL GENERATOR - A bearing assembly for an electrical generator includes a frame, a bearing liner and a ring. The frame is configured to connect with a housing of an electrical generator. The frame includes a frame opening and is made from a first material. The bearing liner connects with the frame. The bearing liner is made from a second material, which is dissimilar from the first material. At least a portion of the bearing liner passes through the frame opening. The ring surrounds the bearing liner. The ring contacts the frame and the bearing liner and maintains a clearance between the portion of the bearing liner passing through the frame opening and the frame. | 2017-10-26 |
20170310189 | Stator Cooling For Electric Machines - A vehicle electric machine may include a rotor. The rotor may cooperate with a stator including a core having an end face, and end windings extending from the end face. A cooling tunnel may encase the end windings, sealing against the end face at opposing sides of the end windings, and defining an inlet configured to receive coolant. The cooling tunnel may be arranged to contain the coolant during passage over the end windings and direct the coolant toward an outlet. | 2017-10-26 |
20170310190 | ROTOR ENDCAP - A vehicle electric machine may include a stator having end windings extending axially from the stator. A rotor may be disposed within the stator and including an endcap having an outer face defining outlets and a furrowed outer periphery with an edge configured to distribute coolant released from the outlets onto the outer face to different axial locations of the end windings during rotation. The furrowed outer periphery may taper toward an in inner flat portion. The outlets may be contained within the inner flat portion. The furrowed outer periphery may be symmetric about any axis perpendicular to and passing through an axis of rotation of the rotor. The outer face may further define channels extending from the outlets to the edge. The channels may be recessed in the outer face. The furrowed outer periphery may define concentric circumferential ridges. | 2017-10-26 |
20170310191 | CONTACTING ARRANGEMENT BETWEEN A STATOR AND A CIRCUIT BOARD - A stator for an electric motor, connected to a circuit board, comprising a stator housing in which several winding arrangements consisting of winding wires wound to form coils are arranged. Contact support receptacles are formed on the stator housing, in which, in each case, an insulation displacement contact element is introduced, which establishes an electrical contact between, in each case, a winding arrangement and a jumper wire on the circuit board. | 2017-10-26 |
20170310192 | Arrangement For Casing Of ODP Type Motors With Part Of The Casing Being Closed By The Connection Box - Engine housings feature an opening on the housing through which electric connection is enabled, as well as temporary maintenance. An ODP-type engine housing including a metal housing with a side opening, the opening compatible with the shape of the bottom of the junction box, enabling the junction box to partially close the opening of the housing. Consequently, when the junction box is attached, the housing is closed in order to facilitate the closing operation, as well as reducing manufacturing complexity, total mass of the housing and, consequently, manufacturing costs. | 2017-10-26 |
20170310193 | Motor - Provided is a motor which includes a stator including a stator core, a coil wound around the stator core, and an insulator mounted on the stator core and configured to insulate the coil and the stator core, a busbar disposed on the stator and conductively connected to the coil, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the insulator includes a vibration prevention unit which extends from an upper side of an inner circumferential part and is in contact with an inner circumferential surface of the busbar. Therefore, the motor prevents a coating of a coil from being worn or cut by preventing the busbar from moving without an additional process or component. | 2017-10-26 |
20170310194 | BRUSHLESS DC MOTOR CONFIGURATION FOR A POWER TOOL - A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB. | 2017-10-26 |
20170310195 | Communication Device - A communication device containing
| 2017-10-26 |
20170310196 | POWER GENERATION DEVICE FOR A VEHICLE - Disclosed is a power-generating backlit trim strip for a vehicle, comprising an oscillation system ( | 2017-10-26 |
20170310197 | ELECTRIC ROTATING MACHINE AND MANUFACTURING METHOD FOR ELECTRIC ROTATING MACHINE - According to one embodiment, there is provided a gas cooled electric rotating machine in which a cooling gas is flowed through into a rotor and a stator. The rotor includes a pair of center hole conductors inserted into a center hole along a center of rotation while being electrically insulated from a shaft and from each other, the center hole conductors including respective protruding parts protruding toward an end of the shaft. The rotor includes a pair of end conductors provided at the end of the shaft so as to be each electrically insulated from the shaft, the end conductors being electrically connected to side surfaces of the protruding parts of the pair of center hole conductors, the side surfaces serving as electric connection surfaces. | 2017-10-26 |
20170310198 | Method And Device For Welding Wire Segment Pairs - A method for welding a plurality of wire segment pairs is disclosed. Each wire segment pair has two adjacent wire segments, and each adjacent wire segment has a contact region where the wire segment is to be welded to the respective other wire segment. The wire segment pairs are successively guided between two elements of a pressing unit, and at a weld moment in which at least one of the wire segment pairs is located between the two elements. The pressing unit exerts a pressing force onto the wire segment pair such that the contact regions of the wire segments are pressed against each other. At each weld moment, laser radiation is irradiated onto the wire segment pair to which the pressing unit is exerting the pressing force, and the laser radiation is irradiated onto a region in which the contact regions are pressed against each other. | 2017-10-26 |
20170310199 | HYBRID HYSTERESIS MOTOR - A hybrid hysteresis motor is disclosed. The hybrid hysteresis motor includes a stator with, a plurality of axial slots on a first base-end and a plurality of radial slots on an inner surface. The motor further includes an output shaft, a first axial-flux rotor mounted on the output shaft and associated with the stator, and a radial-flux rotor mounted on the output shaft and disposed inside the stator. | 2017-10-26 |
20170310200 | FIXED MAGNETIC GAP PERMANENT MAGNET SPEED GOVERNOR - A fixed magnetic gap permanent magnet speed governor, including a cylindrical conductor rotor and a permanent magnet rotor disposed therein, the permanent magnet rotor includes at least one permanent magnet, two length sides of the permanent magnet are an N pole and an S pole respectively, two magnetic pole end surfaces and two length sides of the permanent magnet are arranged with fixed magnetizers and movable magnetizers respectively, the fixed magnetizers and the movable magnetizers form a closed magnetic loop. Adopting the fixed magnet gap structure improves an engagement area of speed governor and reduces assembling difficulty, saves a rare-earth material, increases a torque transmission capability. The adoption of a magnetic circuit adjustment structure reduces the power consumption of an adjustment execution mechanism, maximally reduces the size of the adjustment execution mechanism, reduces the overall size of the speed governor, reducing material consumption, saving installation space, and facilitating on-site installation. | 2017-10-26 |
20170310201 | RADIAL-GAP TYPE SUPERCONDUCTING SYNCHRONOUS MACHINE, MAGNETIZING APPARATUS AND MAGNETIZING METHOD - A radial-gap type superconducting synchronous machine | 2017-10-26 |
20170310202 | STRUCTURE OF MAGNET MODULE AND YOKE MODULE OF DYNAMO HUB - A dynamo hub includes a magnet module and a yoke module. The magnet module includes first magnetic pole sections and second magnetic pole sections on opposite sides thereof. The yoke module includes first yoke irons and second yoke irons located on the opposite sides of the magnet module. The first and the second yoke irons are not parallel to the first and the second magnetic pole sections, so that the first and the second magnetic pole sections always cross the first and the second yoke irons in an tilted matter while the magnet module is driven to rotate to reduce the cogging torque when the dynamo hub is running. | 2017-10-26 |
20170310203 | ACTUATOR - An actuator may include a supporting body; a movable body; a connecting body connected to the movable body and the supporting body and having elasticity or viscoelasticity; a first magnetic driving circuit including first magnets and a first coil held by the supporting body and movable body, the first coil being opposed to the first magnets in a first direction, and the first magnetic driving circuit generating driving the movable body in a second direction which perpendicularly intersects with the first direction; and a second magnetic driving circuit including second magnets and a second coil held by the supporting body or the movable body, the second coil being opposed to the second magnets in the first direction, and the second magnetic driving circuit driving the movable body in a third direction which perpendicularly intersects with the first direction and crosses the second direction. | 2017-10-26 |
20170310204 | BANDGAP REFERENCE CIRCUIT AND DCDC CONVERTER HAVING THE SAME - To provide a bandgap reference circuit capable of shortening a start time at power-on in a circuit lowered in power consumption. There is provided a bandgap reference circuit using an op amplifier to generate a reference voltage, which is equipped with a first current source connected between a power supply terminal and an operating current input terminal of the op amplifier, a second current source having one end connected to the power supply terminal, and a switch connected between the other end of the second current source and the operating current input terminal of the op amplifier, and in which a switch is turned on at power-on and turned off after starting of the reference voltage. | 2017-10-26 |
20170310205 | Method for Joint Control of a Power Source and Active Filter - Methods, systems and apparatuses for voltage regulation are disclosed. For an embodiment, a voltage regulator includes a power source block configured to convert an input voltage to an output voltage to supply current to an output load, a storage capacitor, and an active filter configured to transfer energy between the output load and the storage capacitor. A conversion ratio of the active filter is controlled by a parameter related to the output voltage, and a conversion ratio of the power source block is at least partially controlled by a parameter related to the voltage on the storage capacitor. | 2017-10-26 |
20170310206 | DEVICE AND METHOD FOR CHARGING A BATTERY FROM A THREE-PHASE NETWORK, HAVING A DEGRADED CHARGING MODE - A device and method for charging a battery from a three-phase network, having a degraded charging mode, for example a battery of an electric traction automotive vehicle. The device includes a first filtering stage configured to be connected to the three-phase network, a voltage step-down stage connected to the filtering stage, a voltage step-up stage configured to be connected to the battery and coupled to the voltage step-down stage via an inductive component, a regulating unit configured to impose cyclic switching ratios on the voltage step-down stage and on the voltage step-up stage, and a device for comparing operating temperature of the regulating unit with a threshold value and controlling the charging based on two phases of the three-phase network when the operating temperature of the regulating unit exceeds the threshold value. | 2017-10-26 |
20170310207 | CIRCUIT FOR ALLEVIATING HIGH FREQUENCY SWITCHING NOISE AND VOLTAGE OVERSHOOTING IN SEMICONDUCTOR COMPONENTS ARRAYS AND RETURNING ENERGY THEREFROM - A circuit for transferring parasitic energy to an external load. The circuit includes a first array of semiconductor switches connected in parallel with one another, a second array of semiconductor switches connected in parallel with one another, an external load connected in parallel with the second array of semiconductor switches, an extended-time saturable reactor (ETSR), and a voltage snubber capacitor. The second array of semiconductor switches is connected in series with the first array of semiconductor switches. The ETSR is connected in series with the second array of semiconductor switches. The voltage snubber capacitor is connected in parallel with the second array of semiconductor switches and the ETSR. The circuit may further include an energy return circuit including an isolation transformer for returning energy in the voltage snubber capacitor to the external load. The external load can include a capacitive load or an external power supply. | 2017-10-26 |
20170310208 | APPARATUS FOR CONTROLLING OPERATION OF POWER CONVERSTION DEVICE - The present invention relates to an apparatus for controlling the operation of a power conversion device including a rectifier part, an initial charging part, a DC-link part and an inverter part. The apparatus includes: a control part configured to drive a relay connected in parallel to an initial charging resistor of the initial charging part if a DC-link voltage of the DC-link part exceeds a first reference voltage during initial charging for the DC-link part; a relay monitoring part configured to monitor whether or not the relay is normally being operated when the relay is driven; and an inverter driving part configured to stop of the driving of the inverter part if it is determined that the relay is not normally being operated by referring to a result of the monitoring of the relay monitoring part. | 2017-10-26 |
20170310209 | MULTIPHASE POWER FACTOR IMPROVEMENT CIRCUIT - A rectification circuit rectifies an alternating current voltage of an alternating current power supply. A parallel converter comprises converters that correspond to phases and that are connected in parallel to an output terminal of the rectification circuit. Each converter comprising a reactor, a switching circuit that is connected in series to the reactor and a diode that is connected in series to the reactor. A smoothing capacitor is connected to an output terminal of the parallel converter. A control circuit generates pulse signals corresponding to phases based on an error voltage between an output voltage of the smoothing capacitor and a reference voltage and on an output voltage of the rectification circuit, and switches the switching circuits in the converters using the pulse signals. Current detection circuits are provided corresponding to the converters and that detect currents flowing through the switching circuits. | 2017-10-26 |
20170310210 | CONTROLLER FOR MULTIPHASE BOOST CONVERTERS - A controller for a multiphase converter comprises a first stage controller for producing a first gate drive signal to turn on a first power transistor of a first boost converter; a delay element configured to produce a delayed signal by delaying the first gate drive signal by half a cycle length; a time difference detection element configured to: output a turn on command based on a zero crossing detection (ZCD) signal indicating that one or more zero current conditions of a second boost converter of the multiphase converter are met and the delayed signal; and a second stage controller configured to assert a second gate drive signal to turn on a second power transistor of the second boost converter based on the turn on command. | 2017-10-26 |
20170310211 | REGULATOR FOR DC-DC HYBRID-MODE POWER REGULATION - The invention provides a regulator for DC-DC hybrid-mode power regulation of an output voltage and a load current. The regulator may include a controller and a back-end circuit. The controller controls the output voltage and the load current by charging a connection node when a driving signal is at an on-level, and stopping charging the connection node when the driving signal is at an off-level. The back-end circuit is coupled to the controller, capable of switching between a first mode and a second mode to control transition of the driving signal by different schemes. The back-end circuit switches from the second mode to the first mode when a mode-switch criterion is satisfied, and whether the mode-switch criterion is satisfied is independent of a measurement of the output voltage. | 2017-10-26 |
20170310212 | DC/DC CONVERTER - In this DC/DC converter, a first switching circuit is connected between a first winding of a transformer and a DC power supply, and a second switching circuit is connected between a second winding and a battery. A control circuit includes a first circuit for performing feedback control so as to reduce a difference between a detected value and a command value of charge current, and a second circuit for correcting one of control input and output of the first circuit on the basis of the detected value and the command value. In charging the battery, the control circuit controls a phase shift amount of a first diagonal element in the first switching circuit and a phase shift amount of a second diagonal element in the second switching circuit relative to the drive phase of a first reference element in the first switching circuit. | 2017-10-26 |
20170310213 | APPARATUS AND METHODS FOR MULTI-MODE CHARGE PUMPS - Apparatus and methods for multi-mode charge pumps are disclosed herein. In certain configurations, a multi-mode charge pump includes an output terminal, a mode control circuit that operates the multi-mode charge pump in a selected mode, a first switched capacitor, a capacitor charging circuit, and a plurality of switches. The capacitor charging circuit connects a first end of the first switched capacitor to a charging voltage in a first phase of a clock signal, and connects the first end of the first switched capacitor to a reference voltage in a second phase of the clock signal. The charging voltage has a voltage level that changes based on the selected mode. The plurality of switches connect a second end of the first switched capacitor to the reference voltage in the first phase, and connect the second end of the first switched capacitor to the output terminal in the second phase. | 2017-10-26 |
20170310214 | REFERENCE VOLTAGE GENERATION CIRCUIT AND DCDC CONVERTER HAVING THE SAME - A reference voltage generation circuit includes a bandgap reference circuit, a first resistive element and a second resistive element connected in series between the output node and a ground terminal, a third resistive element, a fourth resistive element, and a first switch connected in series between the output node and the ground terminal, and a second switch having one end connected to a connecting point of the first resistive element and the second resistive element, at which a reference voltage is generated, and the other end connected to a connecting point of the third resistive element and the fourth resistive element. A ratio between resistance values of the first resistive element and the second resistive element is equal to a ratio between resistance values of the third resistive element and the fourth resistive element. The first and second switches are turned on at power-on and turned off after the reference voltage is started. | 2017-10-26 |
20170310215 | CONTROL CIRCUIT HAVING SIGNAL PROCESSING CIRCUIT AND METHOD FOR DRIVING THE CONTROL CIRCUIT - Disclosed is a signal processing circuit including an analog-to-digital converter, an arithmetic processing unit electrically connected to the analog-to-digital converter, and a first register electrically connected to the arithmetic processing unit. The extremely small off-state current of a transistor included in the first register allows the first register to retain a signal output from the arithmetic processing unit. This structure enables stationary driving of a load even if the signal processing circuit is turned off, which contributes to a reduction in power consumption of an electronic device having the load. | 2017-10-26 |
20170310216 | DC-TO-DC CONVERTER - A DC-to-DC voltage converter includes a converter input for receiving a DC voltage. A first switch is coupled between the input and a first node. A second switch is coupled between the first node and a ground. An inductor is coupled between the first node and a converter output. A capacitor is coupled between the converter output and ground. An output voltage synthesizer is coupled to the converter input and the converter output for synthesizing the voltage at the first node and for generating a control signal for at least one of the first switch and the second switch in response to the voltages at the converter input and the converter output. | 2017-10-26 |
20170310217 | MULTI-PHASE SWITCHED POWER CONVERTER - A multi-phase power converter comprising a plurality of phases for generating an output voltage according to a switching signal and an input voltage, each phase of the plurality of phases comprising a switching element and inductance; wherein the plurality of phases is connected to a common star point, wherein an output capacitor is connected to the common star point. The phases of the multi-phase power converter are not identical in terms of their inductance. Therefore, at least one phase may be optimized for a low current such that, in low power operation, said at least one phase is optimal for lower current levels. | 2017-10-26 |
20170310218 | METHOD AND APPARATUS OF A MULTI-PHASE CONVERTOR TOPOLOGY - A slim and cost effective power module solution derived from the multiple-phase buck converter technology that addresses the problems of inductor thickness and excessive magnetic material use. Such power module solution utilizes a multi-phase constant current topology and a corresponding electronic controller to provide a constant current source for various OLED lighting applications. The multi-phase constant current topology comprises two or more inductor-flyback diode feedback loops. Each inductor-flyback diode feedback loop is triggered ON and OFF out-of-phase by a current controller, which senses and estimates the average current supplied to the load, and causes the adjustments to the average current supplied to the load by controlling the ON duration of the inductor-flyback diode feedback loops. | 2017-10-26 |
20170310219 | DC/DC CONVERTER - In this DC/DC converter, a first controller calculates a first operation value on the basis of a difference between output voltage Vout and a first calculated value calculated on the basis of a detection value of voltage of the charge/discharge capacitor. A second controller calculates a second operation value on the basis of a difference between a charge/discharge capacitor voltage target value Vcf* and charge/discharge capacitor voltage Vcf. In control blocks, addition and subtraction of the first and second operation values are performed, and the conduction rates for switching elements are controlled, to control the output voltage and a charge/discharge capacitor voltage, thereby preventing application of overvoltage to the switching elements. | 2017-10-26 |
20170310220 | GAS TUBE-SWITCHED HIGH VOLTAGE DC POWER CONVERTER - A direct current (DC)-DC converter includes a transformer and a gas tube-switched inverter circuit. The transformer includes a primary winding and a secondary winding. The gas tube-switched inverter circuit includes first and second inverter load terminals and first and second inverter input terminals. The first and second inverter load terminals are coupled to the primary winding. The first and second inverter input terminals are couplable to a DC node. The gas tube-switched inverter circuit further includes a plurality of gas tube switches respectively coupled between the first and second inverter load terminals and the first and second inverter input terminals. The plurality of gas tube switches is configured to operate to generate an alternating current (AC) voltage at the primary winding. | 2017-10-26 |
20170310221 | ISOLATED STEP-UP CONVERTER - An isolated step-up converter having first and second stages is described herein. The second stage can provide either DC or AC output based on the various topologies described. Resonance inductors and capacitors are used and tuned to a commutation frequency in some embodiments. Capacitors and inductors are also used in the first stage. | 2017-10-26 |
20170310222 | RELAY DRIVE WITH VOLTAGE ISOLATION - Disclosed herein is a flyback system. The flyback system includes a tank circuit comprising a primary side and a secondary side. The flyback system also includes a switching device configured to pulse energy to the tank circuit. The energy is stored in a first side of the tank circuit when the switching device is on. The energy is transferred from the primary side to the secondary side when the switching device is off. | 2017-10-26 |
20170310223 | POWER ADAPTER AND METHOD FOR FIXING DC VOLTAGE GAIN THEREOF - A power adapter and a method for fixing DC voltage gain thereof are disclosed. The power adapter applied for powering an electronic device includes a voltage converter, an LLC converter, and a controlling module. The LLC converter is electrically connected to the voltage converter and receives an input voltage provided by the voltage converter. The controlling module with a plurality of controlling modes is electrically connected to the voltage converter, the LLC converter, and the electronic device; the controlling module selects one of the controlling modes in accordance with a voltage requirement of the electronic device, the controlling module further drives the voltage converter to provide the input voltage based on the selected controlling mode, which makes the LLC converter to provide an output voltage to fit the voltage requirement of the electronic device, thus a DC voltage gain of the power adapter is fixed. | 2017-10-26 |
20170310224 | POWER SUPPLY DEVICE, DISPLAY APPARATUS HAVING THE SAME AND POWER SUPPLY METHOD - A display apparatus is provided. The display apparatus includes a display configured to display an image, an image signal provider circuit configured to provide an image signal to the display, and a power supply configured to generate driving power and to supply the generated driving power to the image signal provider, wherein the power supply controls an operation time of a power factor compensation (PFC) circuit which performs power factor compensation of the display apparatus based on a size of an output load receiving the driving voltage. | 2017-10-26 |
20170310225 | OUTPUT-SIDE CONTROLLER WITH SWITCHING REQUEST AT RELAXATION RING EXTREMUM - A method for regulating a power converter includes initiating a transition of a switch coupled to an input side of the power converter from an OFF to an ON state to regulate a transfer of energy from the input to an output side of the power converter after a switch control signal generator receives an enable signal and if a feedback signal representative of an output of the power converter indicates a change in an output of the power converter. The enable signal is generated to communicate a control signal from the output to the input side in response to a first signal representative of a voltage on an output terminal that oscillates in response to an ending of the transfer of energy. The transition of the switch from the OFF to the ON state occurs substantially at a time that the first signal reaches an extremum. | 2017-10-26 |
20170310226 | Control Module with Active Snubber and Related Flyback Power Converting Device - A control module for a flyback power converting device is coupled between a primary side winding of the flyback power converting device and a power end and includes a switch unit coupled to the primary side winding; wherein the control module conducts a connection between the primary side winding and the power end when the switch unit is disconnected; wherein the power end is able to provide an operation current to the control module. | 2017-10-26 |
20170310227 | POWER CONVERTER AND CONTROL METHOD THEREOF - A control method of a power converter including a first stage converter and a second stage converter is provided. The first stage converter converts an input voltage into an intermediate voltage. The second stage converter converts the intermediate voltage into an output voltage to power a load. If a loading amount of the load is larger than a first threshold value, the intermediate voltage is adjusted to increase a voltage difference between the intermediate voltage and the output voltage, so that a change of the intermediate voltage is in a negative correlation with a change of the loading amount. If the loading amount is smaller than a second threshold value, the intermediate voltage remains be unchanged or the intermediate voltage is adjusted, so that the change of the intermediate voltage is in positive correlation with the change of the loading amount. | 2017-10-26 |
20170310228 | INSULATION TYPE STEP-DOWN CONVERTER - An insulation type step-down converter includes first, second, third, and fourth secondary-side coils, and first, second, third, and fourth rectifier elements. The first, second, third, and fourth rectifier elements is capable of performing rectification such that electric currents flow alternately only in one of the first and second secondary-side coils and one of the third and fourth secondary-side coils, and electric currents flowing simultaneously in one of the first and second secondary-side coils and one of the third and fourth secondary-side coils are opposite in direction to each other so as to cancel out a magnetic flux passing through the middle leg each time when electric current flowing in the primary-side coil is changed in direction. Provided is an insulation type step-down converter which can minimize an increase in heat generated by the primary-side coil even at a large step-down ratio of a step-down transformer without raising manufacturing costs. | 2017-10-26 |
20170310229 | DC-TO-DC CONVERTER, POWER CONVERTER, POWER GENERATION SYSTEM, AND METHOD FOR DC-TO-DC CONVERSION - A DC-to-DC converter includes a first switching circuit, a second switching circuit, a transformer positioned between an AC side of the first switching circuit and an AC side of the second switching circuit, an inductance element positioned between the transformer and at least one of the AC side of the first switching circuit and the AC side of the second switching circuit, and control circuitry that operates the first switching circuit and the second switching circuit. The control circuitry sets a predetermined operation ratio of the first switching circuit and the second switching circuit to each other, and adjusts, based on the predetermined operation ratio, a first operation period of the first switching circuit and a second operation period of the second switching circuit. | 2017-10-26 |
20170310230 | SELF SUPPLY FOR SYNCHRONOUS RECTIFIERS - A power converter with an isolated topology may include a primary side and a secondary side. The secondary side includes a self-powered synchronous rectifier. The synchronous rectifier includes a synchronous rectifier transistor having at least a drain and a gate, a voltage regulator having at least an input that is coupled to the drain of the synchronous rectifier transistor, and an auxiliary transistor having at least a drain that is coupled to the drain of the synchronous rectifier transistor. The auxiliary transistor is on a same die as the synchronous rectifier transistor. The synchronous rectifier also includes a clamping device having at least an output that is coupled to the gate of the auxiliary transistor, and a gate driver circuit having at least: a power supply input that is coupled to the output of the voltage regulator, and an output that is coupled to a gate of the synchronous rectifier transistor. | 2017-10-26 |
20170310231 | RESONANT CONVERTER AND DRIVING METHOD THEREOF - A resonant converter includes a first switch on a primary side and a second switch coupled to the first switch, a first synchronous rectification switch on a secondary side conducted according to a switching operation of the first switch, a second synchronous rectification switch on the secondary side conducted according to a switching operation of the second switch, and a switch control circuit configured to detect a waveform of one end voltage of at least one of the first synchronous rectification switch and the second synchronous rectification switch, determine one of a below region and an above region, and differently control conduction duration of the first and second synchronous rectification switches according to a determined result. | 2017-10-26 |
20170310232 | REMOTELY CONTROLLABLE MODULAR POWER CONTROL DEVICE FOR POWER GENERATION - A power adjusting circuit includes a sensor configured to measure a voltage and a current of the first AC output by an inverter, an AC/DC/AC converter configured to receive the first AC output from the inverter, and a controller configured to convert the first AC output to a second AC output having a desired power factor. | 2017-10-26 |
20170310233 | THREE PHASE MEDIUM VOLTAGE POWER CONVERSION SYSTEM FOR COUPLING A POWER SOURCE TO A UTILITY GRID - The invention provides a three phase medium voltage power conversion system for coupling a power source to a utility grid comprising a power converter and a Notch-Filter. The switching control system of the inverter of the power converter is based on SHE-PWM patrons. The Notch-Filter is tuned to attenuate the frequency of the first harmonic that the switching control system of the inverter cannot attenuate and configured with damping means capable of smoothing the resonance frequency without affecting the notch frequency. | 2017-10-26 |
20170310234 | POWER CONVERTER TOPOLOGY FOR USE IN AN ENERGY STORAGE SYSTEM - Systems and methods associated with example power converter systems are disclosed. For instance, a power converter system can include a power converter couplable to an input power source and configured to generate an output power substantially at a grid frequency. The power converter can include one or more inverter bridge circuits, each associated with an output phase of the power converter. Each inverter bridge circuit can include one or more first switching modules having a pair of switching elements coupled in series with one another, and an output coupled between the pair of switching elements. At least one switching element of each first switching module includes a reverse blocking transistor. The power converter further includes one or more input bridge circuits having a plurality of second switching modules coupled in parallel, each second switching module comprising a pair of silicon carbide transistors. | 2017-10-26 |
20170310235 | DIRECT-POWER-CONVERTER CONTROL DEVICE - A control device includes a charge controller. The charge controller includes an amplitude determining unit, a charge command generating unit, and a charging operation controller. The amplitude determining unit determines an amplitude of a current to be input to a converter by performing at least proportional-integral control on a deviation between a voltage across the buffer capacitor and an average voltage command value that is a command value of an average of the voltage across the buffer capacitor. The charge command generating unit determines a charge command by multiplying by the amplitude a function determined according to a discharge duty, a rectifying duty, and a distribution factor of power. The charging operation controller controls a charging operation of the buffer capacitor on the basis of the charge command. | 2017-10-26 |
20170310236 | RECEIVING CIRCUIT AND SIGNAL RECEIVING METHOD - Provided is a receiving circuit that operates in a power supply system different from a transmitting circuit outputting a transmission signal and receives the transmission signal through an AC coupling device where a primary coil through which the transmission signal flows and a secondary coil having a center tap to which a specified voltage is supplied from an external terminal are magnetically coupled, which includes a pulse width amplifier circuit that holds pulse signals appearing at both ends of the secondary coil for a specified period of time and outputs them as hold signals, respectively, and a differential amplifier that compares a voltage of the hold signal and a voltage of the hold signal and outputs a comparison result. | 2017-10-26 |
20170310237 | POWER CONVERTER - In a multilevel converter, three first rectifying elements are respectively connected between three arms and a negative voltage terminal. Three second rectifying elements are respectively connected to the three first rectifying elements in antiparallel. During a normal operation, current flows in the three first rectifying elements and the three second rectifying elements. When a short circuit accident occurs between two DC power transmission lines, the three first rectifying elements are brought into the non-conductive state, thereby interrupting and quickly attenuating inter-arm direct current flowing in four arms and the like. | 2017-10-26 |
20170310238 | APPARATUS AND METHOD FOR AN ACTIVE-SWITCHED INVERTER - An inverter apparatus and method are provided for converting direct current to alternating current. The inverter circuit includes a first switch sub-circuit configured for electrical communication with a power source and switching at a first frequency. The inverter circuit further includes a second switch sub-circuit in electrical communication with the first switch sub-circuit. The second switch sub-circuit is configured for electrical communication with a load and switching at a second frequency different from the first frequency. | 2017-10-26 |
20170310239 | CASCADED H-BRIDGE INVERTER AND METHOD FOR HANDLING FAULT THEREOF - A cascaded H-bridge inverter and a method for handling a fault thereof are provided. An output voltage or an output power of each of N solar panels is detected by a controller. In a case that the output voltage of at least one of the N solar panels is lower than a preset voltage, or that the output power of at least one of the N solar panels is lower than a preset power, the controller controls a corresponding switching device to be switched off, and changes a set value of a voltage across a capacitor in the direct current side. Then, the controller controls a corresponding H-bridge module to perform inverting by taking the set value of the voltage across the capacitor in the direct current side as an input value, so that a total output modulation voltage of the cascaded H-bridge inverter meets a preset condition. | 2017-10-26 |
20170310240 | SELF-BALANCED MODULATION AND MAGNETIC REBALANCING METHOD FOR PARALLEL MULTILEVEL INVERTERS - A self-balanced modulation method and a closed-loop magnetic flux rebalancing control method for parallel multilevel inverters. The combination of the two methods provides for balancing of the magnetic flux of the inter-cell transformers (ICTs) of the parallel multilevel inverters without deteriorating the quality of the output voltage. In various embodiments a parallel multi-level inverter modulator is provide including a multi-channel comparator to generate a multiplexed digitized ideal waveform for a parallel multi-level inverter and a finite state machine (FSM) module coupled to the parallel multi-channel comparator, the FSM module to receive the multiplexed digitized ideal waveform and to generate a pulse width modulated gate-drive signal for each switching device of the parallel multi-level inverter. The system and method provides for optimization of the output voltage spectrum without influence the magnetic balancing. | 2017-10-26 |
20170310241 | HYBRID BOOSTING CONVERTERS - Various examples are provided for hybrid boosting converters (HBCs). In one example, a HBC includes an inductive switching core and a bipolar voltage multiplier (BVM) coupled to the inductive switching core. In another example, a HBC micro-inverter includes an inductive switching core coupled to an input voltage; a BVM comprising a positive branch and a negative branch coupled to the inductive switching core; and a switched bridge coupled across the positive and negative branches of the BVM. In another example, a 3D HBC includes a common axis comprising a series of capacitors; and a plurality of parallel wings coupled to the common axis. The parallel wings form a BVM when coupled to the common axis and include an inductive switching core that is coupled to an input voltage. The common axis can include a single input voltage or multiple input voltages can be coupled through the wings. | 2017-10-26 |
20170310242 | POWER-CONVERTING DEVICE, AND POWER CONDITIONER USING SAME - A controller switches between modes each having a different connection state of a DC power supply and the capacitor with respect to first and second output points by controlling switches. A generation unit generates a reference wave including at least one carrier wave. The modes are classified into a sustaining mode in which no current is caused to flow to the capacitor, a charging mode in which a current is caused to flow to the capacitor, and a discharging mode in which a current in a direction opposite to that in the charging mode is caused to flow to the capacitor. The controller switches between the sustaining mode and a charging or discharging mode according to the comparison result between a signal wave and the reference wave. | 2017-10-26 |
20170310243 | SIGNAL TRANSMISSION CIRCUIT PROVIDED WITH LOGIC CIRCUIT - A signal transmission circuit transmitting abnormality signals from a primary side circuit to a secondary side circuit is provided, in which the primary side circuit includes switching elements driven by drive circuits, the secondary circuit including a receiving unit receiving the abnormality signals transmitted from the primary side circuit. | 2017-10-26 |
20170310244 | POWER CONVERTER AND METHOD FOR OPERATING A POWER CONVERTER - The present invention provides a pulse-controlled inverter comprising one or multiple semiconductor switches and freewheeling diodes arranged in parallel to each semiconductor switch. The semiconductor switches are triggered only when the current does not flow through a freewheeling diode which is arranged in parallel to the semiconductor switch. This allows the number of triggering processes for the semiconductor switch to be reduced. The reduced number of triggering processes for the semiconductor switches results in lower power losses and an increased service life of the entire system. | 2017-10-26 |
20170310245 | VIBRATION ACTUATOR AND ELECTRONIC APPARATUS USING VIBRATION ACTUATOR - A vibration actuator capable of determining positional relationship between a vibration body and driven body with high accuracy while keeping a pressurized contact state therebetween. The driven body contacts with the vibration body in a first direction and moves in a second direction perpendicular to the first direction. A holding member that holds the vibration body has two holes. A support member that supports the holding member has two projections that fit in the holes to form first and second fitting parts. The projection contacts with the hole in the second direction and in a third direction perpendicular to both the first and second directions in the first fitting part. The projection contacts with the hole in the third direction in the second fitting part. A contact range of the projection and hole in the third direction in the first fitting part differs from that in the second fitting part. | 2017-10-26 |
20170310246 | VIBRATION TYPE ACTUATOR, VIBRATOR, AND VIBRATOR MANUFACTURING METHOD - A vibration type actuator providing a satisfactory actuator performance even when an increase in speed is achieved and having a contact spring. The actuator includes a vibrator equipped with an electrical-mechanical energy conversion element, an elastic member to which the electrical-mechanical energy conversion element is fixed, and a protrusion provided on the elastic member. The vibrator can generate an elliptic movement in the protrusion. A driven body is configured to come into contact with the protrusion and to make a relative movement with respect to the vibrator. The protrusion includes a contact portion having a contact surface contacting the driven body, a continuous side wall portion protruding with respect to one end surface of the elastic member and forming a hollow structure, and a connection portion connecting the contact portion and the side wall portion and exhibiting flexibility in a direction normal to the contact surface. | 2017-10-26 |
20170310247 | STICK-SLIP DRIVE, ESPECIALLY PIEZO-ACTUATED INERTIAL DRIVE - Disclosed is a stick-slip drive comprising a base and a rotor which are in contact with one another via a friction surface and are coupled to one another in such a way that the rotor can perform an inertial motion relative to the base, characterized in that two materials, a noble metal and a ceramic material, are paired up on the friction surface between the base and the rotor. | 2017-10-26 |
20170310248 | METHOD FOR CONTROLLING ULTRASONIC MOTOR AND SURVEYING INSTRUMENT FOR THE SAME - Provided is a method for controlling an ultrasonic motor provided at a rotary shaft of a surveying instrument to meet requirements for a rotation speed and a plurality of operation modes, and a surveying instrument for the same. In the present invention, the ultrasonic motor is controlled by a first signal having a square wave in a range of rotation speed of the rotary shaft from zero to a first speed, controlled by a second signal in which rises or falls of the square wave are sloped in a range from the first speed to a second speed, controlled by a third signal in which rises and falls of the square wave are sloped in a range from the second speed to a third speed, and controlled by a fourth signal in which the drive signal is continuously applied in a range higher than the third speed. | 2017-10-26 |
20170310249 | METHOD FOR CONTROLLING AN ELECTRIC MOTOR - A method is described for controlling an electric motor having a rotor. The method is carried out after a shutdown of the motor has been initiated. The method includes starting a timer in a motor controller, performing regenerative braking to recapture kinetic energy from the rotor as electrical energy, and using the recaptured electrical energy from the regenerative braking to power the motor controller. If the timer in the motor controller exceeds a predetermined timer value, a flag is set in memory in the motor controller to indicate that the motor has stopped. | 2017-10-26 |
20170310250 | Disconnection Detection Apparatus of Sinusoidal Wave Signal - Disclosed is a disconnection detection apparatus of a sinusoidal wave signal. The disconnection detection apparatus of the present disclosure converts a first sinusoidal wave and a second sinusoidal wave into absolute values, respectively, and determines that disconnection occurs when a value of the first sinusoidal wave is less than a first comparison value that is greater than a minimum value and a value of the second sinusoidal wave is less than a second comparison value that is less than a maximum value. | 2017-10-26 |
20170310251 | Controller and Method for Transitioning Between Control Angles - A control system for a refrigeration system motor includes an angle determination module that generates an output rotor angle indicating a desired angle of a rotor of the motor. A control module controls the motor based on the output rotor angle. An estimator module determines an estimated rotor angle. A transition module generates a transition signal in response to convergence of the estimator module. Upon startup, the angle determination module generates the output rotor angle based on a first rotor angle. Upon generation of the transition signal, the angle determination module generates the output rotor angle based on the first rotor angle and the estimated rotor angle. After generation of the transition signal, the angle determination module reduces a contribution of the first rotor angle to the output rotor angle over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle. | 2017-10-26 |
20170310252 | APPROACH TO STORING ENERGY - An apparatus for storing energy comprises a two-quadrant chopper connectable to a converter DC link, at least one energy store, connected to the two-quadrant chopper for storing energy, so that the two-quadrant chopper can be used to transport energy from the converter DC link to the at least one energy store or vice versa. The apparatus further comprises a control device for controlling a current flowing in accordance with the transport of the energy, wherein the control device is configured to control the current flowing in accordance with the transport on the basis of a thermal load on the at least one energy store. | 2017-10-26 |
20170310253 | MAGNETIC SENSOR INTEGRATED CIRCUIT, MOTOR ASSEMBLY AND APPLICATION DEVICE - A magnetic sensor integrated circuit is provided, which includes: a magnetic sensing element to detect change in an external magnetic field to output a magnetic field sensing signal; a signal processor to process the magnetic field sensing signal and output a magnetic field detection signal; and a current source generator to output a constant current to the magnetic sensing element. The constant current is not influenced by a temperature. | 2017-10-26 |
20170310254 | MAGNETIC SENSOR INTEGRATED CIRCUIT, MOTOR ASSEMBLY AND APPLICATION DEVICE - A magnetic sensor integrated circuit, a motor assembly and an application device are provided. The magnetic sensor integrated circuit includes a magnetic field detection circuit. The magnetic field detection circuit includes a magnetic sensing element configured to sense an external magnetic field and output an electrical detection signal, a signal processing unit configured to perform amplification and interference rejection on the electrical detection signal to generate an analog electrical signal, and a comparator configured to compare the analog electrical signal with a reference voltage, and output magnet detection signal corresponding to the external magnetic field. The reference voltage is generated based on an input common-mode voltage of the magnetic field detection circuit. | 2017-10-26 |
20170310255 | METHOD OF DETERMINING THE ROTOR POSITION OF A PERMANENT-MAGNET MOTOR - A method of determining the position of a rotor of a brushless permanent-magnet motor is provided. The phase winding is freewheeled when a phase current exceeds an upper threshold. The method further includes measuring a parameter that corresponds to either: (i) the magnitude of the phase current during or at the end of freewheeling when the phase winding is freewheeled for the fixed period of time, or (ii) the time interval between the start and end of freewheeling or the start and end of excitation when the phase winding is freewheeled until the phase current falls below the lower threshold. The measured parameter is then used to define a saturation threshold. The phase winding is subsequently excited and freewheeled in the same manner, and the parameter is measured again. The method then compares the measured parameter against the saturation threshold, and determines that the rotor is at a predetermined position. | 2017-10-26 |
20170310256 | METHOD OF CONTROLLING A BRUSHLESS PERMANENT-MAGNET MOTOR - A method of controlling a brushless permanent-magnet motor that includes sequentially exciting and freewheeling a phase winding of the motor is provided. The phase winding is freewheeled when the phase current exceeds an upper threshold. The method further includes measuring a parameter that corresponds to either: (i) the magnitude of the phase current during or at the end of freewheeling when the phase winding is freewheeled for the fixed period of time, or (ii) the time interval during freewheeling or during excitation when the phase winding is freewheeled until the phase current falls below the lower threshold. The measured parameter is then compared against a saturation threshold, and the rotor is determined to be at a predetermined position. In response to determining that the rotor is at the predetermined position, the phase winding is commutated after a commutation period has elapsed. | 2017-10-26 |
20170310257 | ELECTRONIC SWITCH AND ELECTRONIC DEVICE - An electronic switch and an electronic device are disclosed. The electronic switch includes a trigger, a measurement device, a load control circuit, and the controller. The trigger switches on or off a circuit between a power supply and the electronic switch and generates the travel of the electronic switch. The measurement device is configured to measure working parameters of the power supply, the load and the trigger and to send the working parameters to the controller. The controller receives the working parameters and generates a control signal with a PWM signal. The PWM signal is obtained by adjusting the current control signal according to the working parameters. The control signal is sent to the load control circuit. The load control circuit controls the rotation speed of the motor in the load with the control signal. | 2017-10-26 |
20170310258 | ELECTRONIC SWITCH CONTROL METHOD - An electronic switch control method is disclosed. The method comprises receiving the current working parameters of the electronic switch, then reading duty cycle parameters matching with the current working parameters; conducting a linear calculation with the duty cycle parameters and the working parameters to obtain a new duty cycle; adjusting the current control signal to obtain a PWM signal having the new duty cycle; and controlling the rotation speed of the motor in a load with the PWM signal. By reducing the volume of an electronic switch and achieving a long low-speed travel, the disclosure enables the user to work at an accurate working point with an electronic device. | 2017-10-26 |
20170310259 | DEVICE FOR CONTROLLING A REGULATOR OF A MOTOR VEHICLE ALTERNATOR, AND ALTERNATOR COMPRISING THE CORRESPONDING REGULATOR - A regulator has a circuit generating an activation command by bringing, to a first voltage higher than a high reference voltage, a bidirectional line connected to a detection circuit for detecting a status of the activation command. The detection circuit comprises generation means for generating a fault signal from a flag indicating a failure of the alternator, linking the line to a ground by means of a switching element, thus bringing the line to a second voltage lower than a fault voltage lower than the high reference voltage, and the control circuit comprises detection means for detecting the fault signal. The control circuit further transmits a setpoint PWM signal having a maximum higher than the high reference voltage and a minimum lower than a low reference voltage higher than the fault voltage, a duty ratio of the setpoint signal being representative of a setpoint voltage (V | 2017-10-26 |
20170310260 | Controller For A Separately Excited Electric Generator In A Vehicle Electrical System Of A Motor Vehicle - The present disclosure relates to motor vehicles. The teachings thereof may be embodied in the operation and control of an externally excited electrical generator in an on-board electrical system of a motor vehicle. An example method may include: setting the excitation voltage within the scope of regulating an actual output voltage of the generator at a predetermined setpoint output voltage of the generator; evaluating load requirements of at least one peak load consumer supplied from the on-board electrical system; identifying exceptional situations based on the load requirements; and in the event of an exceptional situation, setting an associated temporary excitation output voltage of the generator. | 2017-10-26 |
20170310261 | Electric Door Monitoring - A method of monitoring the mechanical condition of a passenger door on a public transit vehicle wherein the door operator is a brushed direct current electrical motor and comprises the steps of: repeatedly recording a profile of the motor current vs. time following initiation of opening or closing of the door; based on previously recorded profiles establishing acceptable ranges of motor current for times following initiation of opening or closing the door; and comparing an instant motor current profile to the acceptable ranges and indicating a potential fault condition if the motor current is outside the acceptable ranges. | 2017-10-26 |
20170310262 | Stator Segment for a Linear Motor-Based Transport System and Transport System - A stator segment for a linear motor-based transport system is developed to the effect that a transmitter for cyclic transmission of a control data record in a first clock cycle also transmits, in addition to transmitting the control data record, a position value in a clock-synchronized manner, wherein a plurality of positions are available as a sequence with a quantity of elements and an element with an index corresponds to a position, where the transmitter unit is configured such that, upon every first clock cycle, the index is incremented commencing from a starting value and an element is transmitted after the control data record, where the transmitter unit is furthermore configured to transmit all elements in one transmission interval, and where the transmission interval corresponds to a multiple of the first clock cycle. | 2017-10-26 |
20170310263 | APPARATUS AND METHODS OF CONTROLLING ELECTRIC DRIVE WITH RECONFIGURABLE WINDING - An electric drive system for a three-phase PM electric machine. The drive system includes a split stator winding for each phase of the machine including a first winding section and a second winding section, and an inverter circuit including a pair of inverter switches for each phase, where the pair of inverter switches for each phase is electrically coupled to the first and second winding sections for that phase in the stator. The drive system also includes a switching system including a switch circuit, where the switch circuit includes a plurality of switch assemblies for switching between a full winding control mode and a half winding control mode, where each switch assembly includes a first AC switching device and a second AC switching device, and where each switch assembly is electrically coupled to the pair of inverter switches and the first and second winding sections for a particular phase. | 2017-10-26 |
20170310264 | DRIVE CONTROL APPARATUS FOR MULTIPLE-WINDING MOTOR - In a drive control apparatus for a multiple-winding motor including a power converter for driving a winding group per each winding group of a multiple-winding motor having a plurality sets of winding groups, a compensation amount calculator obtains, by using a signal of a first controller controlling a first power converter driving a first winding group among the winding groups, a compensation amount for compensating a signal of an other controller controlling an other power converter other than the first power converter, based on the compensation amount obtained by the compensation amount calculator. A signal of the other controller is compensated to control the other power converter, and the first power converter is controlled without compensating a signal of a first controller. | 2017-10-26 |
20170310265 | SYNCHRONOUS MACHINE CONTROLLER - When a failure of current detection parts occurs while a synchronous machine is operating, the failure of the current detection parts is detected and the operation of the synchronous machine is continued. An open-loop control part for performing control without using the detected current values of the current detection parts and a closed-loop control part for performing control using the detected current values are included, and a failure of the current detection parts is detected while the open-loop control part is operating. | 2017-10-26 |
20170310266 | METHOD AND DEVICE FOR CONTROLLING A POLYPHASE SYNCHRONOUS ROTARY ELECTRICAL MACHINE, AND CORRESPONDING REVERSIBLE ELECTRICAL MACHINE FOR A MOTOR VEHICLE - The method for controlling a rotating electric machine according to the invention comprises a step of controlling the phase currents of the machine by means of a full-wave control (C). According to the invention, the full-wave control (C) is generated via a pulse width modulated signal of which the signal frequency is greater than an electric frequency of the machine. According to another feature, ascending or descending fronts ( | 2017-10-26 |
20170310267 | AC ROTARY MACHINE CONTROL APPARATUS - An AC rotary machine control apparatus is provided with: predriver ICs for giving drive signals to the gates of power converting switching elements bridge-connected to the respective phases of an AC rotary machine; predriver IC output cutting-off switching elements for operating on the basis of a cut-off signal from a calculation processing device having detected an abnormality state of the predriver ICs, and cutting off drive signals given from the predriver ICs to the gates of the power converting switching elements; and a gate driver circuit for becoming conductive on the basis of a signal from the calculation processing device and giving drive signals from a power source circuit to all the gates of the lower arm elements of the power converting switching elements, when drive signals from the predriver Ics are being cut off by the predriver IC output cutting-off switching elements. | 2017-10-26 |
20170310268 | MOTOR CONTROL DEVICE HAVING MULTIPLE POWER FAILURE DETECTION SENSITIVITIES - A motor control device includes: a rectifier that converts AC power supplied from an AC power supply side into DC power and outputs the DC power; an inverter that converts the DC power output from the rectifier into AC power for motor driving and outputs the AC power; an AC voltage detection unit that detects an AC voltage value of an AC power supply side of the rectifier; and a power failure detection unit that outputs, based on the AC voltage value detected by the AC voltage detection unit, several power failure detection signals in accordance with a predetermined power failure detection condition at a power failure on the AC power supply side of the rectifier. | 2017-10-26 |
20170310269 | CONTROL APPARATUS AND CONTROL METHOD OF AC ROTARY MACHINE - When an abnormality is detected by an abnormality detection unit, a first switching stop device turns OFF all of switching elements connected to one arm of either an upper arm or a lower arm of a power converter, and turns ON all of the switching elements connected to the arm, which are not turned OFF; when the abnormality is continuously detected even after operating the first switching stop device, a second switching stop device turns ON or turns OFF the switching elements connected to the upper arm and the lower arm so that the turn-ON and the turn-OFF are reversed to the operation by the first switching stop device; and when the abnormality is continuously detected even after operating the second switching stop device, a third switching stop device turns OFF all of the switching elements in the upper arm and the lower arm. | 2017-10-26 |
20170310270 | Power Conversion Apparatus - A power conversion apparatus includes a power conversion circuit and a control unit. The power conversion circuit converts electric power supplied from a power supply and outputs the converted electric power. The control unit controls the power conversion circuit. The power conversion circuit has at least one phase that is configured as a parallel-connection phase in which two semiconductor elements are connected in parallel to each other in each of an upper arm connected to a high potential-side wiring of the power supply and a lower arm connected to a low potential-side wiring of the power supply. The control unit detects temperature information related to element temperatures of all of the plurality of semiconductor elements of a target arm that is either of the upper arm and the lower arm of the parallel-connection phase, and performs overheating protection control of the power conversion circuit based on the detected temperature information. | 2017-10-26 |
20170310271 | METHOD FOR OPERATING A CIRCUIT ASSEMBLY - A method for operating a circuit system having at least three control stages for at least three phases, each of the control stages having a high-side switch and a low-side switch, each of the high-side switches and each of the low-side switches being capable of being brought into an electrically conductive state and into an electrically non-conductive state, a quantity being determined that influences the temperature of the high-side switches and/or of the low-side switches, either the high-side switches or the low-side switches being selected in a group as a function of the quantity influencing the temperature, and the selected high-side switches or low-side switches being controlled in a freewheeling phase in such a way that the selected high-side switches or low-side switches form a freewheel during the freewheeling phase. | 2017-10-26 |
20170310272 | FLOATING PHOTOVOLTAIC POWER GENERATION SYSTEM - A floating solar power generation system includes a photovoltaic (“PV”) array. The PV array includes a plurality of PV modules mechanically bound together. Each of the PV modules includes solar cells for generating solar power that are embedded within a laminated structure which is compliant to folding or bending in response to wave action on a surface of a waterbody. The laminated structure of each of the PV modules floats in or on the waterbody in intimate contact with the waterbody to cool the solar cells. | 2017-10-26 |
20170310273 | OVER-CENTER UNDER PHOTOVOLTAIC MODULE CLAMP - Photovoltaic modules are mounted onto PV module mounting brackets of a solar torque tube via clamps. The clamps include a first hook rotatably attached to a main body, and a second hook rotatably attached to the main body. The clamps provide for simultaneously securing a first photovoltaic module to the bracket with the first hook and securing a second photovoltaic module to the bracket with the second hook without the need for tools. | 2017-10-26 |
20170310274 | SOLAR-OPERATED ADJUSTMENT DEVICE FOR A SOLAR INSTALLATION - Solar-operated adjustment device for a solar installation including, at least one retaining element for fixing at least one solar element, a swivel device which is designed and intended to swivel the retaining element around a support point, wherein the swivel device includes at least one liquid tank, wherein a float of the retaining element is arranged at least in part beneath a filling level of the liquid tank and the float is supported on a perimeter of the liquid tank, and the retaining element can only be swiveled around a support point with respect to a longitudinal axis of the liquid tank by means of its buoyancy and is mounted above the filling level, at least indirectly on the edge of the liquid tank. | 2017-10-26 |
20170310275 | PHOTOVOLTAIC ARRAY MOUNTING STRUCTURE - A photovoltaic mounting structure includes a frame for holding a photovoltaic array including a plurality of widthwise channels so as to permit photovoltaic modules to be easily slid between pairs of the channels, the photovoltaic modules resting upon flanges of the channels. In various embodiments, domed protrusions are disposed on lateral sides of the channel to prevent kinking of the modules and reduce friction, retention teeth are formed on upper surfaces of the flanges to position the modules; locator teeth are formed on lower surfaces of the flanges to guide the channels to predetermined spacing; and pre-installed mounting clips are attached to a top surface of the channel. The mounting clips each include an anti-rotation tab oriented downwardly and partially disposed in a corresponding hole in a top surface of the channel so as to prevent rotation of the mounting clip when a bolt of the mounting clip is rotated. | 2017-10-26 |
20170310276 | SOLAR PHOTOVOLTAIC SYSTEM INSPECTION METHOD AND INSPECTION APPARATUS - A solar photovoltaic system inspection apparatus sequentially applies AC inspection signals to a positive electrode and a negative electrode of a solar cell string, and is provided with: an impedance calculation unit configured to measure an indicator value when the signal is applied to the positive electrode, and an indicator value when the signal is applied to the negative electrode, the indicator values varying depending on the number of solar cell modules from the terminal to which the inspection signal was applied to a failure position; and a control unit configured to obtain the failure position based on the ratio of the indicator value measured when the inspection signal was applied to the positive electrode, to the indicator value measured when the inspection signal was applied to the negative electrode. | 2017-10-26 |
20170310277 | ULTRA-BROADBAND SWITCHED INDUCTOR OSCILLATOR - A voltage controlled oscillator (VCO) and a method of operating the VCO are disclosed. The VCO includes an inductor device, a capacitor device coupled in parallel with the inductor device through first and second nodes, and a pair of cross-coupled transistors coupled in parallel with the inductor device and the capacitor device through the first and second nodes. At least one of the pair of cross-coupled transistor includes a plurality of sub transistors coupled in parallel. The sub transistors are individually switchable to adjust current drive capability of each of the sub transistors. Each of the sub transistors includes a first gate and a second gate. | 2017-10-26 |
20170310278 | Hybrid RC/Crystal Oscillator - An oscillator includes a tunable oscillator, a phase detector circuit communicatively coupled with an output of the tunable oscillator and an input to the oscillator, and an oscillator controller circuit configured to adjust frequency of the tunable oscillator based upon phase detection between output of the tunable oscillator and output of an external resonant element received at the input to the oscillator. | 2017-10-26 |
20170310279 | INTEGRATED CIRCUIT - According to the present invention, an integrated circuit includes a first amplifier stage, a second amplifier stage, a first signal line connecting an output of the first amplifier stage and an input of the second amplifier stage to each other, a first plane for ground connected to the first amplifier stage, a second plane for ground connected to the second amplifier stage and at least one at least one line for ground connecting the first plane and the second plane to each other, wherein the at least one line has a center line having a length of 10 μm to 1 mm, a width of the at least one line is ⅓ or less of a width of the first plane, and a pattern ratio is 1 or more. | 2017-10-26 |
20170310280 | SINGLE SIGNAL-VARIANT POWER SUPPLY FOR A PLURALITY OF AMPLIFIERS - In accordance with embodiments of the present disclosure a control circuit may include at least one input for monitoring a respective signal for each of a plurality of amplifiers, an output for outputting at least one control signal for controlling a power supply level of the single signal-variant power supply configured to deliver electrical energy to the plurality of amplifiers, and decision and control logic. The decision and control logic may be configured to monitor the respective signals for each of the plurality of amplifiers and, based on the respective signals, and a respective requirement associated with each of the plurality of amplifiers, setting a power supply level of the single signal-variant power supply and outputting the at least one control signal to control the power supply level such that the respective requirements are satisfied. | 2017-10-26 |