30th week of 2015 patent applcation highlights part 59 |
Patent application number | Title | Published |
20150207358 | WIRELESS CHARGING MOLDULE FOR A STORAGE BATTERY - The wireless electric charging module for a storage battery takes advantage of a voltage sensing circuit and a current sensing circuit to get an error control signal, through a controlled calculation method (PID), the storage battery can be efficiently controlled to get a direct electric power source for wireless sending in electricity charging, to thereby overcome the phenomenon that the voltage of the storage battery is overly low and unstable in conventional techniques and needs a voltage rise circuit to get a stabilized electric power source, and to overcome the problems in relating to the cost of circuits and the efficiency of conversion of energy. | 2015-07-23 |
20150207359 | BATTERY CHARGING SYSTEM FOR HYBRID CONSTRUCTION MACHINERY BY USING ROTATIONAL FORCE OF FAN AND CHARGING METHOD THEREFOR - A battery charging system and a charging method thereof for a hybrid construction machine using a rotating force of a fan are disclosed. The battery charging system includes a fan, a controller controlling a braking device of the fan and a battery which is charged with electric energy. The charging method includes controlling, by the controller, a braking device of the fan to decrease a fan rotating speed down to a target fan rotating speed if the current target fan rotating speed, which is obtained depending on a current cooling water temperature, a hydraulic fluid temperature, and an engine intake air temperature, is lower than an actually measured fan rotating speed; and charging, by the braking device, electric energy which is caused by a rotating force that is generated while the fan rotating speed is decreased from the actually measured fan rotating speed to the target fan rotating speed in the battery. Since the electric energy generated by the rotating force is stored in the battery, the engine operation time is reduced, and thus a fuel efficiency can be improved. | 2015-07-23 |
20150207360 | INTEGRATED MOBILE PHONE CASE AND CHARGER - An integrated mobile phone case and charger for providing both a protective casing for a mobile device which includes an integrated solar cell for charging the battery of the mobile device therein. The integrated mobile phone case and charger comprises a case body defined by a front piece and a back piece, with the back piece including solar cells, electrical wiring, and a charging port. The front piece and back piece are configured to releasable attached to each other to form an enclosure in which a mobile phone or other mobile device is placed and secured. The solar cells electricity to be generated to be supplied to the battery of a mobile device disposed in the integrated mobile phone case and charger. Electricity generated carried through electrical wires mounted on the inside surface of the back piece to a charging port, where it is provided to the mobile device. | 2015-07-23 |
20150207361 | METHOD AND APPARATUS FOR CHANGING OPERATION STATUS OF ELECTRONIC DEVICE - An apparatus and method for changing an operation status of an electronic device using an embedded battery is provided. The apparatus and method for changing the operation status of the electronic device may detect an event that requires a change in the operation status of the electronic device, may switch a battery used for an operation of the electronic device from a first battery detachable from the electronic device to a second battery embedded in the electronic device, in response to detecting the event, and may change the operation status of the electronic device by employing the second battery as a power source. | 2015-07-23 |
20150207362 | POWER SUPPLY SYSTEM - A power supply system includes a plurality of uninterruptible power supplies provided for a load in parallel. The uninterruptible power supplies each include a power supply unit configured to supply the load with power and being larger in capacitance than the load, and a switch provided between the power supply unit and the load. The power supply system further includes a control unit selecting a first uninterruptible power supply of the plurality of uninterruptible power supplies, and setting the switch of the first uninterruptible power supply to the on state. | 2015-07-23 |
20150207363 | FEEDING DEVICE - An electric power is fed from a wireless feeding device to a feeding device, and the feeding device feeds the electric power to an object to which the electric power is fed. The feeding device includes a power receiving module, a power circuit and a controller. The power receiving module receives the electric power from the wireless feeding device. The electric power is fed from the power receiving module or from an AC adapter to the power circuit and the power circuit feeds the electric power to the object to which the electric power is fed. The controller interrupts a supply of the electric power from the AC adapter. | 2015-07-23 |
20150207364 | MICROWAVE ENERGY CONVERTER - A microwave energy converter, including at least one semiconductor and ohmic contact electrodes. The semiconductor acts as both a microwave receiving unit and a microwave rectifying unit of the microwave energy converter. The ohmic contact electrodes are disposed at two ends of the semiconductor along a microwave transmission direction to output direct current generated by the semiconductor. | 2015-07-23 |
20150207365 | SUPERCONDUCTING POWER GENERATION SYSTEM AND ASSOCIATED METHOD FOR GENERATING POWER - A system includes a generator unit coupleable to a hydro turbine. The generator unit includes a casing having a first stationary support coupleable to a base disposed within water and a superconducting generator disposed within the casing. The superconducting generator includes an annular armature and an annular field winding including a plurality of superconducting magnets disposed coaxial with the annular armature and separated by a gap. One of the annular armature and the annular field winding is rotatable by the hydro turbine and other of the annular armature and the annular field winding is stationary. | 2015-07-23 |
20150207366 | Annular stack of laminations comprised of single-tooth stacks and method for manufacturing a stack of lamination - The annular stack of laminations provides adjoined single-tooth stacks, each exhibiting a pole body and a pole shoe. Adjacent single-tooth stacks abut against each other with the faces of their pole shoes. Adjacent single-tooth stacks are joined together by at least one adhesive bond in such a way that the adhesive bond can be dissolved by applying a force so as to detach the single-tooth stacks from the annular stack of laminations. While manufacturing the stack of laminations, an adhesive is at least partially introduced between the single-tooth stacks. The single-tooth stacks can be detached from the annular stack of laminations by the user for coating and winding purposes. The adhesive bond ensures that the single-tooth stacks are reliably held together during transport. | 2015-07-23 |
20150207367 | LAMINAR SEGMENT FOR ELECTRIC MOTOR SEGMENTED STATOR - The present invention refers to an electric motor with segmented stator and a fluid compressor provided with an electric motor with segmented stator. Segmented stator (E) of the electric motor is composed of segments ( | 2015-07-23 |
20150207368 | MOTORIZED SERVO DEVICE USING CASELESS MOTOR - A motorized servo device includes a case and a caseless motor. The case has a cylinder surface and an accommodating space defined by the cylinder surface. The caseless motor has a stator and a rotator, which are installed in the accommodating space coaxially and one of which contacts the cylinder surface directly. As a result, the motorized servo device of the present invention can output higher power than a conventional motorized servo device having a same volume of the motorized servo device of the present invention and is relatively easier in assembly and tolerance control. | 2015-07-23 |
20150207369 | METHOD FOR MOUNTING STATOR CORE ON GENERATOR AND GENERATOR AND STATOR CORE ASSEMBLY USING THE SAME - Provided is a method for mounting a stator core on a generator, the generator having key bars and spring bars disposed between the key bars and a frame body, the method including pre-laminating stator core sheets to form a stator core bundle in a given unit; conveying the stator core bundle laminated in the given unit; and mounting the stator core bundle on the inner peripheral surface of the frame body. | 2015-07-23 |
20150207370 | PERMANENT MAGNET SYNCHRONOUS MOTOR AND POWER-ASSISTED STEERING SYSTEM - The invention relates to a permanent magnet synchronous motor, in particular an electric three phase motor, comprising a stator in which stator teeth with interposed stator grooves are arranged, at least one winding made of an electrically conductive material being provided on each stator tooth, further comprising a rotor with permanent magnets which are arranged radially in a spoke-like manner in the rotor. Said synchronous motor has a predetermined and defined maximum brake torque based on a predetermined diameter-length-ratio of the rotor, a number of rotor poles and a number of stator grooves. The present invention further relates to an electric power-assisted steering system. | 2015-07-23 |
20150207371 | APPLIANCE, MOTOR OR STATOR - A motor suited for use in a direct drive laundry machine. The described motor has 27 poles projecting outward from an annular ring. Each pole is associated with one of three phase windings. A rotor for the motor has 36 inwardly facing permanent magnet poles. | 2015-07-23 |
20150207372 | ROTOR FOR MOTOR, MOTOR HAVING THE SAME AND METHOD FOR MANUFACTURING THE MOTOR - Disclosed herein is a rotor for motor including a rotor tube disposed inside a stator, a rotor core that is formed on a circumferential surface of the rotor tube and integrally formed with the rotor tube, and magnets coupled to the rotor core. The rotor for motor provides an advantageous effect of preventing the deformation of the rotor tube in the process of assembling the rotor tube and the rotor core. | 2015-07-23 |
20150207373 | DAMPER FINGER SEGMENT - A damper finger segment is radially disposed between a retaining ring and a damper ring arrangement at a rotor end of a generator arrangement, in particular of a high power turbogenerator, having a multitude of plate-like finger elements with a longitudinal extension and arranged parallel to each other. Each neighboring pair of finger elements encloses a gap and all finger elements are joined at one end of each finger element by a band-like strip section having a longitudinal extension being oriented orthogonally to the longitudinal extension of the finger elements. At least one slot is provided in each plate-like finger element and/or in the band-like strip section. The at least one slot has a slot axis oriented parallel to the longitudinal extension of the plate-like finger elements. | 2015-07-23 |
20150207374 | ROTARY ELECTRIC MACHINE - A U-phase coil that constitutes the armature winding includes four (first through fourth) small coil groups U | 2015-07-23 |
20150207375 | INTERPHASE INSULATING SHEET FOR ROTATING ELECTRIC MACHINE, ROTATING ELECTRIC MACHINE, AND ELECTRIC COMPRESSOR FOR VEHICLE - Annular portions of a first interphase insulting sheet have void portions. After a U-phase coil is inserted in wave winding, bridge portions are mounted to slots for an adjacent V-phase coil. The void portions are formed at positions corresponding to the bridge portions that are disposed between any two of coil ends. The annular portions are stretched to form a generally pentagon shape, which facilitates mounting of the V-phase coil. The void portions formed at positions that do not need insulation will not impair the insulating function of the first interphase insulating sheet. The void portions formed in alignment with extension of the bridge portions will not cause a drop in the strength of the annular portions. | 2015-07-23 |
20150207376 | ELECTRIC MACHINE AND MOTOR VEHICLE WITH SUCH AN ELECTRIC MACHINE - An electric machine includes a housing, a controller for influencing an excitation current for the electric machine, and a carrier, formed separately to the controller, for carbon brushes resting on slip rings of a rotor shaft of the electric machine. The housing has on an outer side ( | 2015-07-23 |
20150207377 | ELECTRICAL INDUCTION MOTOR HAVING A ROTOR WITH A BEVEL GEAR ARRANGEMENT FOR DRIVING A PAIR OF OPPOSITE GEAR RINGS - An induction motor or generator assembly for converting either of an electrical input or rotating work input to a mechanical/rotating work or electrical output. An outer annular arrayed component is rotatable in a first direction and includes a plurality of magnets arranged in a circumferentially extending and inwardly facing fashion according to a first perimeter array, the outer component further incorporating a rotating shaft projecting from a central location. An inner concentrically arrayed and reverse rotating component exhibits a plurality of outwardly facing and circumferentially spaced array of coil-subassemblies opposing the magnetic elements, such that a gap separates the coil-subassemblies from the magnets. The coil sub-assemblies each include a plurality of concentrically arrayed coils configured within a platform support of the inner component. A fixed commutator has a plurality of annular extending and individually insulated segments, a similar plurality of outer rotating brushes in continuous contact with the commutator segments. A spring biased toggle incorporated into the rotatable brush housing influencing each of the outer rotating brushes in a counter-centrifugal force exerting fashion in order to maintain a continuous contact profile with the commutator segments. | 2015-07-23 |
20150207378 | COOLING JACKET COMPRISING A SEALING MEANS - A cooling jacket includes a jacket having an axial end provided with an opening, and a sealing structure which is arranged in the opening. A member selected from the group consisting of the jacket and the sealing structure has a radial deformation to connect the jacket to the sealing structure. The radial deformation is configured to extend into the opening. | 2015-07-23 |
20150207379 | MOTOR HOUSING - The invention relates to a motor housing for an electric motor with a stator as well as to an electric motor with a housing, whereby at least one multifunctional opening is arranged in the lower housing section and whereby electronics can be arranged in the housing, characterized in that, in order to cool the electronics, the multifunctional opening has a baffle by means of which an air flow can be directed towards the electronics, and, as an alternative, it has an offset on the side facing the upper housing section in order to mechanically connect the stator to the lower housing section. | 2015-07-23 |
20150207380 | ELECTRIC MOTOR SUPPORT STRUCTURE AND COMPRESSOR - An electric motor support structure (A) includes: a base ( | 2015-07-23 |
20150207381 | DEVICE HAVING AT LEAST ONE PANCAKE MOTOR ROTOR, AND ASSEMBLY METHOD - A device includes at least one stator and at least one flat motor rotor having at least one magnet unit configured to magnetically interact with the stator such that a drive force for rotating the flat motor rotor relative to the stator acts on the magnet unit. The device further includes at least one first bearing which contributes to rotatably supporting the flat motor rotor relative to the stator, and a second bearing which contributes to rotatably supporting the flat motor rotor relative to the stator. At least part of the first bearing abuts on one side of the flat motor rotor, and at least part of the second bearing abuts on the other side of the flat motor rotor, and the two bearings are preloaded against each other. | 2015-07-23 |
20150207382 | POWER STATION ARRANGEMENT WITH HIGH-TEMPERATURE STORAGE UNIT - A power station arrangement is provided having an energy generation unit for generating useful thermal energy on the basis of physical and/or chemical processes, a high-temperature storage unit to be at least partially supplied with heat for regular operation, particularly a metal oxide/air storage unit, and a piping system for thermally coupling the energy generation unit to the high temperature storage unit. | 2015-07-23 |
20150207383 | BASE FOR A GENERATOR - A generator assembly may include a base made of a composite material for supporting a plurality of components including an alternator, and engine, and a fuel tank for storing the fuel for the operation of the engine. The base may include a recess formed in a support surface of the base, and a lid configured to be detachably mounted to the support surface to close the recess and form the fuel tank. The lid may include a baffle configured to extend into the recess and separate and define a fuel feed chamber and a return flow chamber in the recess. | 2015-07-23 |
20150207384 | HUMAN POWERED GENERATOR - A human powered electric energy generator equipped with a mechanism for converting a back and forth motion of a user's legs or arms to a unidirectional circular motion. The device includes an engaging mechanism that, according to the back and forth movement of a belt, enables a pilot gear to alternate engagement between a left and a right gear, and a transmission mechanism which transfers the linear kinetic energy from the belt to a unidirectional rotational kinetic energy of the gears. The device also includes a flywheel for storing the rotational kinetic energy of the gears and/or the transmission mechanism, and an electric generator for converting the rotational kinetic energy into electric energy. | 2015-07-23 |
20150207385 | INSPECTION DEVICE FOR A MACHINE - An electric machine such as for example, an electric generator, is provided having a lock system which enables a monitoring device to be housed in the machine such that the generator is not required to be purged. The machine, which can be filled with a gas, with a housing, wherein a first chamber is arranged on the housing, wherein a first flap valve is arranged between the housing and the first chamber, creating a fluidic connection between said housing and first chamber, and a second chamber which is arranged on the first chamber, wherein a second flap valve is arranged between the first and the second chambers, creating a fluidic connection between said first chamber and second chamber, wherein a monitoring device for inspection purposes is provided in the housing. | 2015-07-23 |
20150207386 | Cooling Stator Coils of an Electric Motor - Performance of an electric motor can be improved if coolant is provided to the coils of the stator. An electric motor is disclosed that has a shaft onto which the rotor is secured. The motor has a stator that is mounted on bearings that are mounted on the shaft. The stator has a plurality of coils. A coolant guide is provided that fills voids between the groups of windings. The coolant guide has a plurality of fingers with the fingers arranged between adjacent pairs of coils. The coolant guide has internal passages to accept pressurized coolant and outlet holes to spray coolant onto the coils. In other embodiments, the fingers guide coolant to reach all coils under the force of gravity. | 2015-07-23 |
20150207387 | ROTARY ELECTRIC MACHINE - A rotary electric machine has a rotor, a stator with a stator core, an outer cylinder, a stator winding an end plate, and a refrigerant rail, and a cooling unit that drips a liquid refrigerant to an end part of the stator winding for cooling. The ring-shaped end plate is supported by the outer cylinder in at least one side in an axial direction of the stator core. The refrigerant rail with a dripping port where the supplied liquid refrigerant is dripped onto the coil end part is integrally formed at least with one of the end plates. | 2015-07-23 |
20150207388 | Rotating Electric Machine - A rotating electric machine includes a cooling frame. The cooling frame includes a flow passage through which the first liquid coolant circulates, a flow inlet connected to one end of the flow passage so as to make the first liquid coolant flow from the outside into the flow passage, and a flow outlet connected to the other end of the flow passage so as to make the first liquid coolant having flown through the flow passage flow to the outside. The machine is configured that, when the flow passage is divided into a front half portion closer to the flow inlet and a latter half portion closer to the flow outlet, the front half portion becomes a portion where the first liquid coolant mainly cools the second liquid coolant, and the latter half portion becomes a portion where the first liquid coolant mainly cools the gas coolant. | 2015-07-23 |
20150207389 | B+ MOUNTED INTEGRATED ACTIVE RECTIFIER ELECTRONICS - A method of cooling electronics of an alternator includes mounting the electronics onto an electrically conductive chassis, and electrically connecting the chassis to positive DC output voltage (B+) of the alternator, whereby the chassis is electrically insulated from ground potential and conductively isolated from heat of the housing. An alternator includes a housing at ground potential, a chassis at B+ potential, and electronics mounted to the chassis, where the chassis is electrically insulated and conductively isolated from the housing. An electric machine includes a B+ chassis having an electronics mounting surface, having a convection surface, and defining an electrical bus for conducting a B+ potential. A chassis assembly has an insulator secured between a frame at ground potential and the B+ chassis. | 2015-07-23 |
20150207390 | MOTOR PROVIDED WITH NONCIRCULAR STATOR CORE, APPARATUS FOR PRODUCTION OF MOTOR, AND METHOD FOR PRODUCTION OF MOTOR - A motor which reduces the manufacturing cost while able to reduce the cogging torque. The stator core is provided with a first core sheet and a second core sheet which is stacked with the first core sheet so that its rolling direction becomes a direction rotated from the rolling direction of the first core sheet by exactly an angle of an odd multiple of 360°/(number of poles of motor×2). The outside edge of the first core sheet has a first side and a second side at two sides in a direction perpendicular to the rolling direction. The outside edge of the second core sheet has a third side and a fourth side in a direction perpendicular to the rolling direction. The dimension between the first side and the second side and the dimension between the third side and the fourth side are the same. | 2015-07-23 |
20150207391 | ELECTRICAL CONDUCTOR ALIGNING DEVICE AND ALIGNING METHOD - An electrical conductor aligning device that can, without mutual interference, easily, and in a short period of time, align a plurality of electrical conductors in an annular shape while overlapping in the peripheral direction. The coil element aligning device includes: holding sections, a slide mechanism and a cylinder mechanism. One leg of each coil element is held by the plurality of holding sections, the plurality of coil elements being aligned in an annular shape at a spacing such that there is no overlapping in the peripheral direction, and then the plurality of holding sections being moved inwards in the radial direction by the slide mechanism and the cylinder mechanism, thereby aligning the plurality of coil elements in an annular shape while overlapping in the peripheral direction. | 2015-07-23 |
20150207392 | ELECTROMECHANICAL TRANSDUCER AND ELECTROACOUSTIC TRANSDUCER - An electromechanical transducer of the invention comprises a structural unit, an armature, and two elastic units. The structural unit includes magnets, a yoke and a coil. The armature has an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. Each of the elastic units includes a pair of elastic members symmetrically arranged via the armature in a direction of the displacement. Each of the elastic members has one end engaging one of the outer portions and another end engaging one of the elastic member attaching portions. | 2015-07-23 |
20150207393 | VOICE COIL MOTOR - The VCM according to an exemplary embodiment of the present disclosure includes a base unit, a mover including a bobbin arranged at an upper surface of the base unit and formed with a plurality of rotation prevention units along a periphery and a first driving unit arranged at a periphery of the bobbin, a stator including a yoke configured to the base unit to surround the mover and inner yoke units each extended to between the rotation prevention units, and a second driving unit oppositely arranged to the first driving unit, and an elastic member elastically supporting the mover, wherein an object occurrence preventing portion is formed between the rotation prevention unit and the inner yoke units to decrease a contact area between the rotation prevention unit and the inner yoke units. | 2015-07-23 |
20150207394 | MAGNET POWER TRANSMISSION - A motor vehicle having an electric motor driving a permanent magnet power transmission connected to the gear box of the vehicle. The magnet power transmission has first and second disk assemblies. A copper member on the first disk assembly faces a plurality of permanent magnets located in bores in the second disk assembly. A control assembly operatively connected to the second disk assembly selectively moves the second disk assembly and magnets toward and away from the first disk assembly to vary the flux between the first disk assembly and second disk assembly. | 2015-07-23 |
20150207395 | METHOD FOR CONTROLLING THE CURRENT INTENSITY OF THE ELECTRIC CURRENT FLOWING THROUGH AN INDUCTIVE CONSUMER AND A CORRESPONDING CIRCUIT CONFIGURATION - A method is provided for controlling the current intensity of the electric current flowing through an inductive consumer, the consumer being connected in series to a switching device and a current measuring unit, and in parallel to a free-wheeling element, and the switching device being activated for adjusting the current intensity during a pulse width modulation period. It is provided that a mean load voltage to be set during the pulse width modulation period is determined from an input current intensity with the aid of a first controller, the mean load voltage being set in the pulse width modulation period with the aid of the switching device at the consumer, the mean load voltage or a setpoint load voltage determined with the aid of a second controller from a predefined setpoint current intensity being fed to a model adapted to the consumer, and the input current intensity being ascertained from the difference between the predefined setpoint current intensity and a difference variable between an actual current intensity through the consumer and a model current intensity determined with the aid of the model. A circuit configuration for implementing the method is also provided. | 2015-07-23 |
20150207396 | Split Phase Power Conversion Apparatuses, Methods and Systems - Split phase power conversion apparatuses, methods and systems are disclosed. One exemplary embodiment includes a generator, an AC/DC converter coupled with the generator, a DC bus coupled with the AC/DC converter, and an inverter coupled with the DC bus. The inverter includes first, second, and third legs each including a plurality of switches. A first controller provides a control signal to the first leg based upon a voltage between a first system output and a second system output and a first current provided to the first system output. A second controller provides a second control signal to the second leg based upon a voltage between the second system output and a third system output and a second current provided to the third system output. A third controller controls the third leg to provide an output equal to one half of the DC bus voltage. | 2015-07-23 |
20150207397 | WIRELESSLY PROGRAMMABLE POWER CONVERTER SYSTEM, TOPOLOGY, AND METHODS - A system, topology, and methods for wirelessly programming a power converter to operate at various output levels and perform various functions. Other embodiments may be described and claimed. | 2015-07-23 |
20150207398 | POWER CONVERSION SYSTEM HAVING A HARMONIC DISTORTION LIMITER - An electrical power conversion system having a harmonic distortion limiter. The power conversion system includes a power converter having a power input, a power output, a current measurement output signal, and a control signal input. The system further includes a controller having a voltage control subsystem arranged to measure a voltage present at the power output of the power converter and generate a corresponding current reference signal. A current control subsystem of the controller is arranged to receive the current reference signal and the current measurement output signal and generate a corresponding modulation command signal, the modulation command signal of the controller being electrically coupled to the control signal input of the power converter. The power converter is responsive to the modulation command signal to limit harmonic distortion at the power output of the power converter. | 2015-07-23 |
20150207399 | PWM CONTROLLER CAPABLE OF CONTROLLING OUTPUT CURRENT RIPPLE VIA A RESISTOR, AND LED DRIVER CIRCUIT USING SAME - A PWM controller capable of controlling output current ripple via a resistor, and an LED driver circuit using the PWM controller, the PWM controller including: a sawtooth signal generation unit for generating a sawtooth signal, of which a slope of a positive ramp is controlled by a control current, and the control current is determined by an external resistor; an amplifier having a positive input end coupled with a reference voltage, a negative input end coupled with a current sense signal, and an output end coupled with an external capacitor for generating a comparison signal; and a comparator having a positive input end coupled with the sawtooth signal, a negative input end coupled with the comparison signal, and an output end for generating an end-of-conduction signal, wherein the end-of-conduction signal will become active whenever the sawtooth signal reaches the comparison signal. | 2015-07-23 |
20150207400 | CONTROL APPARATUS AND METHOD FOR THERMAL BALANCING IN MULTIPHASE DC-DC CONVERTERS - Integrated circuit apparatus and processes are presented for controlling a plurality of parallel-connected DC-DC converter phases forming a multiphase DC-DC conversion system in which individual converter phases are successively activated or deactivated for increasing and decreasing load conditions, respectively, according to an ordered phase sequence, and the phase sequence is selectively modified to promote thermal balancing of the DC-DC converter phases. | 2015-07-23 |
20150207401 | SWITCHED CAPACITOR DC-DC CONVERTER WITH REDUCED IN-RUSH CURRENT AND FAULT PROTECTION - To reduce in-rush currents into a switched capacitor DC/DC converter and detect voltage and current faults, a converter controller is housed along with a current limit series transistor and fault detection circuitry. The series transistor is controlled to limit the in-rush current to a predetermined maximum level during start-up. If the duration of the current limit level, or the time for Vout to achieve a target voltage, exceeds a first threshold time, a first fault detector in the package shuts off the series transistor. During steady state operation, if the input current reaches the limit for a second threshold time or if Vout extends outside a certain range for the second threshold time, a second fault detector in the package shuts off the series transistor. | 2015-07-23 |
20150207402 | Electronic Apparatus and Control Method for High Frequency AC to DC Conversion - A high-frequency ac-dc power converter takes an input ac signal and converts it to an output dc signal. The converter has at least two front-end rectifier diodes arranged as a full wave rectifier of the input ac signal. A first inductor positioned at the output of the full wave rectifier. An output capacitor is connected across a load for the converter. There are at least one additional inductor and one additional capacitor. A switching circuit selectively forms different (LC) resonant circuits with the inductors and capacitors during a cycle of the input ac signal to form a dc-dc power converter. | 2015-07-23 |
20150207403 | CHARGE PUMP STAGE AND A CHARGE PUMP - A charge pump cell, comprising: an input node; an output node; Q channels, where Q is an integer greater than one, and where at least two of the channels comprise: a capacitor; a unidirectional current flow device; an output diode; and a channel drive signal node; and wherein a first current flow node of the unidirectional current flow device is connected to a first node of the capacitor at a channel node, a second node of the capacitor is connected to the channel drive signal node, a second current flow node of the unidirectional current flow device is connected to the input node, and the output diode is connected between the channel node and the output node | 2015-07-23 |
20150207404 | DC-DC VOLTAGE CONVERTER AND CONVERSION METHOD - A DC-DC converter comprises a capacitor arrangement and a switching arrangement for controlling coupling of the capacitor arrangement to a converter input during a loading phase and to a converter output during a storing phase. The converter cycles between charge pumping stages and charge holding phases, giving rise to a converter switching frequency. A variable output load is controlled thereby to maintain a constant converter switching frequency. | 2015-07-23 |
20150207405 | INPUT OFFSET CONTROL - Several circuits and methods for input offset control are disclosed. In an embodiment, a input offset control circuit includes a first input circuit and a second input circuit. The first input circuit is configured to operate within first common mode voltage range, configured to provide first input current, and configured to vary the first input current upon or subsequent to a variation of a voltage level in the first common mode voltage range. The second input circuit is coupled to the first input circuit and is configured to operate within second common mode voltage range, configured to provide a second input current, and configured to vary the second input current based on variation of the voltage level in the second common mode voltage range. Upon or subsequent to increasing the common mode voltage, the first input current is reduced and the second input current is increased. | 2015-07-23 |
20150207406 | SCALABLE VOLTAGE REGULATOR TO INCREASE STABILITY AND MINIMIZE OUTPUT VOLTAGE FLUCTUATIONS - Technologies are generally described for a voltage regulator implemented as an integrated circuit (IC). The voltage regulator may include a power transistor configured to receive and convert an input voltage from a voltage source to an output voltage, and a feedback loop configured to regulate the output voltage in response to a change from a desired level. The feedback loop may include an error amplifier configured to determine and amplify a value difference between the output voltage and a reference output voltage, a voltage divider configured to generate voltage proportional to the output voltage such that a ratio is the value difference, and a first unity gain buffer configured to increase stability of the IC. In some examples, the feedback loop may include a second unity gain buffer and/or an overshoot suppressor circuit configured to reduce an output voltage fluctuation when a current consumed by the load is changed suddenly. | 2015-07-23 |
20150207407 | Semiconductor Device, Semiconductor Module, and Electronic Circuit - According to one embodiment, in semiconductor device, first semiconductor region is provided between first electrode and second electrode. Second semiconductor region is provided between first semiconductor region and second electrode. Third semiconductor region is provided between second semiconductor region and second electrode. Third electrode is in contact with first semiconductor region, second semiconductor region, and third semiconductor region via insulating film. Element part is configured to detect heat released from at least one of first semiconductor region, second semiconductor region, and third semiconductor region. Fourth semiconductor region is provided between first semiconductor region and second electrode. Fifth semiconductor region is provided between fourth semiconductor region and second electrode. And fourth electrode is in contact with first semiconductor region, fourth semiconductor region, and fifth semiconductor region via insulating film. | 2015-07-23 |
20150207408 | SWITCH PROTECTION I AUXILIARY RESONANT CIRCUIT - A resonant power converter comprising electrical safety components comprising a combination of a diodes and a zener diodes coupled between DC conductors and an auxiliary switching circuit, the diodes being adapted to hinder the current from flowing from the auxiliary switching circuit to the negative DC conductor, and the zener diodes being adapted to allow current to flow from the negative DC conductor to the auxiliary switching circuit when the potential difference between the negative DC conductor and the phase conductor is above a threshold voltage. The Zener diodes being selected such that the threshold voltage of the Zener diodes is below the maximum blocking voltage of the transistors. | 2015-07-23 |
20150207409 | POWER SUPPLY DEVICE - A power supply device has a first delay circuit which delays a first clock signal and outputs a second clock signal, a pulse signal generating circuit which generates a first pulse signal, a first transistor which connects an output node to a power supply potential node according to the first pulse signal, a second transistor which connects the output node to a reference potential node according to the first pulse signal, an integration circuit which integrates and outputs a signal of the output node, and a comparator which compares an output signal of the integration circuit and the reference signal, wherein the pulse signal generating circuit generates the first pulse signal in synchronization with the first clock signal, the second clock signal and the output signal of the comparator, and the frequency of the first pulse signal is constant irrespective of voltage of the output node. | 2015-07-23 |
20150207410 | BOOSTING DEVICE - Proper control is performed even during a stuck abnormality of a current sensor | 2015-07-23 |
20150207411 | LOW INPUT VOLTAGE BOOST CONVERTER WITH PEAK INDUCTOR CURRENT CONTROL AND OFFSET COMPENSATED ZERO DETECTION - The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest energy from sources with small output voltages. Some embodiments described herein includes a thermoelectric boost converter that combines an I | 2015-07-23 |
20150207412 | POWER SUPPLY DEVICE - The power supply device of the present invention includes a main converter and at least one sub converter connected in parallel between a pair of output ends of a DC power supply circuit for receiving power through a parallel circuit of a thyristor and a thermistor having a positive temperature coefficient. Each of the main converter and the at least one sub converter includes: a series circuit composed of a diode and a switching element and connected between the pair of output ends; a series circuit composed of a capacitor and an inductor and connected in parallel with the diode; and a drive circuit configured to drive the switching element. The main converter controls the thyristor in accordance with a voltage across a secondary winding magnetically coupled with the inductor. When a short circuit of the switching element of the at least one sub converter occurs, the drive circuit of the main converter terminates driving of the switching element of the main converter. | 2015-07-23 |
20150207413 | HYBRID POWER SUPPLY ARCHITECTURE - A hybrid power supply architecture including a microcontroller, a linear regulator, a first current sensing unit, a second current sensing unit, a switching regulator, a PWM controller and a hybrid output stage is disclosed. The linear and switching regulators respectively perform linear and switching regulation according to a first enable signal and a second enable signal generated by the microcontroller to generate a linear output power and a switching output power. The first and second current sensing units respectively generate a first current sensing signal and a second current sensing signal by sensing the linear and switching output powers. The microcontroller receives the first and second current sensing signals to determine a loading state. The switching regulator is enabled to actuate in case of heavy loading, and particularly the linear regulator is shut off only when the switching output power is stable, thereby implementing the best conversion efficiency. | 2015-07-23 |
20150207414 | SYSTEM AND METHOD FOR SUPPLYING A SYNCHRONOUS RECTIFIER DRIVER CIRCUIT - Methods for supplying a synchronous rectifier (SR) driver circuit and supply voltage generation circuits for a SR driver circuit are described. In one embodiment, a method for supplying a SR driver circuit involves receiving a converted voltage from a secondary winding of a transformer and generating a supply voltage for the SR driver circuit based on the converted voltage, where the supply voltage is higher than an output voltage of the transformer that is generated using the secondary winding. Other embodiments are also described. | 2015-07-23 |
20150207415 | Systems and Methods for Fast Kilovolt Switching in an X-Ray System - A system includes a two-channel inverter for receiving a non-zero variable input voltage, first and second input channels each electrically coupled to the two-channel inverter, a transformer having a primary winding in electrical communication with the first and second input channels and secondary windings, and an active resonant circuit in electrical communication with the secondary windings for generating a switching output voltage at each of two different voltage levels. The active resonant circuit includes switching devices arranged in an anti-parallel configuration, a capacitor electrically coupled in series with the switching devices for receiving and storing energy during a first portion of a resonance cycle and for discharging the energy during a second portion of the resonance cycle, an inductor electrically coupled in series with the capacitor and the switching devices for transferring the energy to and from the capacitor during the resonance cycle, and an output. | 2015-07-23 |
20150207416 | SWITCH CONTROL CIRCUIT AND POWER SUPPLY DEVICE INCLUDING THE SAME - The power supply device includes a power switch, a rectification diode which rectifies a supplied current in accordance with a switching operation of the power switch to generate an output current, and a switch control circuit which averages a detected sensing voltage corresponding to a sensing voltage which follows a current which flows through the power switch to generate an output current estimating voltage corresponding to the output current. | 2015-07-23 |
20150207417 | CONTROL METHOD AND CONTROL CIRCUIT FOR SWITCHING POWER SUPPLY - In one embodiment, a method of controlling a switching power supply, can include: (i) generating a driving current signal that follows a waveform of a sense voltage signal, where the sense voltage signal is related to a current through a collector of a transistor that is configured as a power switch of the switching power supply, where the collector is coupled to an inductive element of the switching power supply; (ii) providing the driving current signal to a base of the transistor, where the transistor is in a saturated conduction state when a pulse-width modulation (PWM) signal is active; and (iii) releasing charge accumulated on the base when the PWM signal is inactive to turn off the transistor. | 2015-07-23 |
20150207418 | PRIMARY SIDE REGULATION POWER SUPPLY DEVICE - A primary-side regulation (PSR) power supply device according to the invention includes: a power switch; an auxiliary wiring from which an auxiliary voltage that depends on an output voltage is generated during a turn-off period of the power switch and being provided in a primary side; a clamping circuit clamping a voltage corresponding to the auxiliary voltage to a predetermined voltage; a voltage follower decreasing the sense voltage according to a decrease of the auxiliary voltage; and a switch control circuit controlling a switching operation of the power switch by using the sense voltage. | 2015-07-23 |
20150207419 | Switching Power-Supply Device - A switching power-supply device includes: a first series circuit including a first switching element; and a second switching element, a second series circuit including a third switching element and a fourth switching element; and a control unit that, while making frequencies of switching signals of the first series circuit and the second series circuit be the same, performs control of turning on-and-off the first switching element and the second switching element, alternately, with dead time at which the first switching element and the second switching element become off and turning on-and-off the third switching element and the fourth switching element, alternately, with dead time at which the third switching element and the fourth switching element become off, wherein the control unit controls a phase difference between the switching signal of the first series circuit and the switching signal of the second series circuit. | 2015-07-23 |
20150207420 | SWITCHING MODE POWER SUPPLIES WITH PRIMARY SIDE REGULATION AND ASSOCIATED METHODS OF CONTROL - A switching mode power supply (SMPS) includes a transformer having a primary winding, a secondary winding for providing an output voltage and an auxiliary winding, a primary switch coupled to the primary winding, a secondary rectifying diode coupled to the secondary winding and a secondary switch connected in parallel with the secondary rectifying diode. A control method used in the SMPS includes: comparing a voltage across the secondary switch with a first secondary threshold and a second secondary threshold and generating a hysteresis comparison signal; timing based on the hysteresis comparison signal; comparing the voltage across the secondary switch with a third secondary threshold when the timing period reaches a first predetermined time; turning ON the secondary switch when the voltage across the secondary switch is less than a third secondary threshold; and turning on the primary switch when the conduction of the secondary switch is detected. | 2015-07-23 |
20150207421 | POWER SUPPLY - A power supply may include a driving power supply unit converting input power to supply driving power to a load, and a power supply control unit performing a control to detect a change in a voltage level of the driving power and cut off the input power when the detected voltage level of the driving power is equal to or more than a preset voltage level, in a preset standby mode. | 2015-07-23 |
20150207422 | ISOLATED POWER CONVERTER AND SWITCHING POWER SUPPLY USING THE SAME - Disclosed are an isolated power converter and a switching control signal using the same. In the isolated power converter, the positions of the power switch and the primary winding are exchanged, and the feedback voltage detection and secondary current zero-crossing detection are carried out in accordance with the voltage across the primary winding. Thus, primary side control can still be implemented without employment of an auxiliary winding. | 2015-07-23 |
20150207423 | PREDICTIVE AND REACTIVE CONTROL OF SECONDARY SIDE SYNCHRONOUS RECTIFIERS IN FORWARD CONVERTERS - A forward converter has a primary side containing a PWM controller for controlling switching of a power switch and has a secondary side coupled to the primary side via a transformer. The secondary side includes a forward transistor and a catch transistor. A secondary side switch controller controls switching of the forward transistor and the catch transistor without communication from the primary side. The secondary side switch controller detects the rising and falling of the voltages at the ends of the secondary winding to control the switching of the forward and catch transistors. A delay locked loop (DLL) is provided in the secondary side switch controller that turns on the catch transistor when the power switch is turned off and turns off the catch transistor at a predetermined time before the power switch is turned on. A separate circuit controls the catch transistor during a discontinuous mode. | 2015-07-23 |
20150207424 | SWITCHING POWER SUPPLY AND ELECTRIC POWER CONVERTER - An electric power converter includes a bridge circuit, a transformer, a rectifier circuit, and a smoothing circuit. The rectifier circuit includes a first secondary-side diode disposed in a first current path extending between one end of a secondary winding and a first terminal of the smoothing circuit, a second secondary-side diode disposed in a second current path extending between the other end of the secondary winding and the first terminal of the smoothing circuit, a third secondary-side diode, a fourth secondary-side diode, a first secondary-side switching element, and a second secondary-side switching element. The first secondary-side switching element and the second secondary-side switching element are connected in common to a first node at which the first current path and the second current path are connected to each other. | 2015-07-23 |
20150207425 | POWER CONVERSION DEVICE AND POWER CONVERSION METHOD - A power conversion device includes primary and secondary full bridge circuits, and a control portion configured to adjust a phase difference between switching in the primary full bridge circuit and switching in the secondary full bridge circuit, so as to control power transmitted between the full bridge circuits, in which each of the full bridge circuits includes an upper arm and a lower arm connected in series to each other, the control portion shortens a dead time when neither of the upper and lower arms are turned on in a transmission state, and in a case where a gate driving state is detected in which both of the upper and lower arms are turned on, the control portion sets an adjustment value of the dead time in the transmission state to a dead time value greater than a dead time detection value when the gate driving state is detected. | 2015-07-23 |
20150207426 | Non-isolated AC input DC Driver - A non-isolated AC input DC Driver in the form of a three phase rectifier followed by one or more balanced DC/DC buck converters. | 2015-07-23 |
20150207427 | POWER CONVERSION DEVICE - An inverter circuit has a main circuit for converting DC power into output electric power and outputting the output electric power, and a filter capacitor connected in parallel with the main circuit. A supply switching circuit has a contactor that switches between supplying and not supplying DC power to the inverter circuit. A control calculator outputs a supply signal causing the contactor to supply the DC power. A memory holds charge history information that indicates a history of incomplete charging of the filter capacitor. When a supply signal is outputted from the control calculator, a supply controller controls the contactor on the basis of the charge history information. | 2015-07-23 |
20150207428 | INVERTER DRIVE CIRCUIT - An inverter drive circuit is equipped with a switching element for each of the upper and lower arms connected in series between the positive electrode and the negative electrode of a DC power source, and a driver circuit for controlling the switching on and off of the switching elements, according to a control signal imparted to each of the switching elements, has a load connected to the connection point between the switching elements of the upper and lower arms, converts the DC-power-source power into AC through the switching on and off, and supplies said power to the load. Therein, the driver circuit compares the voltage of each terminal at both ends of the switching elements, and controls on the basis of the comparison result and the control signal. | 2015-07-23 |
20150207429 | POWER CONVERSION DEVICE - An uneven return current is prevented and increase in a loss is suppressed in a power conversion apparatus at the time of inverter operation. The invention includes first and second transistor switch groups in each of which arms are connected in parallel, and sense resistors for detecting a drain current are connected to the first and second transistor switch groups, and a first drive circuit group and the second drive circuit group include means for monitoring a sense current flowing through the sense resistors and a plurality of delay circuits. Further, rising of the plurality of transistor switch groups is controlled by controlling activation and non-activation of the plurality of delay circuits on the basis of a magnitude of the sense current. | 2015-07-23 |
20150207430 | TERMINAL CIRCUIT IN INVERTER - A terminal circuit in an inverter is disclosed, the terminal circuit including a photo-coupler configured to electrically insulate input/output signals, to receive, as input, an open collector output signal or a pulse output signal from a first port and to output the open collector output signal or the pulse output signal to a second port through a first output terminal, a transistor in which a base (B) terminal is connected to a second output terminal of the photo-coupler. And a bias resistor connected to a base (B) terminal of the transistor and to an emitter (E) terminal. | 2015-07-23 |
20150207431 | PORTABLE ALTERNATING CURRENT INVERTER HAVING REDUCED IMPEDANCE LOSSES - A portable power supply apparatus is provided having reduced impedance losses. The portable power supply apparatus is comprised of: a portable housing; a battery system residing in the housing; and an inverter circuit residing in the housing. The battery system generates a direct current (DC) voltage having a magnitude greater than or equal to a peak value of a desired alternating current (AC) voltage. The inverter circuit receives the DC voltage directly from the battery system, converts the DC voltage to an AC output voltage and outputs the AC output voltage to one or more outlets exposed on an exterior surface of the portable housing. | 2015-07-23 |
20150207432 | System on Chip with Power Switches - According to an exemplary implementation, an integrated circuit (IC) includes a logic circuit monolithically formed on the IC. The logic circuit is configured to generate modulation signals for controlling power switches of a power inverter. The logic circuit generates the modulation signals based on at least one input value. The IC further includes a voltage level shifter monolithically formed on the IC. The voltage level shifter is configured to shift the modulation signals to a voltage level suitable for driving the power switches of the power inverter. The logic circuit can be a digital logic circuit and the input value can be a digital input value. The IC can also include a sense circuit monolithically formed on the IC. The sense circuit is configured to generate the input value. | 2015-07-23 |
20150207433 | SINGLE-PHASE THREE-WIRE POWER CONTROL SYSTEM AND POWER CONTROL METHOD THEREFOR - The present disclosure provides a single-phase three-wire power control system integrating the electricity of a DC power supply device to an AC power source. The single-phase three-wire power control system comprises a single-phase three-wire inverter, a driving unit, a sampling unit and a processing unit. The single-phase three-wire inverter coupled between the DC power supply device and the AC power source converts a DC voltage of the DC power supply device to an output voltage. The driving unit is coupled to the single-phase three-wire inverter. The sampling unit samples the inductor current of an inductor of the single-phase three-wire inverter. The processing unit which is coupled to the driving unit and the sampling unit controls the single-phase three-wire inverter through the driving unit. The processing unit obtains the duty ratio according to the inductance of the inductor, the total variation of the inductor current, the DC voltage and the output voltage. | 2015-07-23 |
20150207434 | Power-Cell Switching-Cycle Capacitor Voltage Control for Modular Multi-Level Converters - In a modular multi-level power converter, additional switching states are interleaved between main switching states that control output voltage or waveform. The additional switching states provide current from a DC-link to charge capacitors in respective modules or cells to an offset voltage from which the capacitor voltages are controlled toward a reference voltage during each switching cycle rather than being allowed to build up over a period of an output waveform of variable line frequency, possibly including zero frequency. Since the switching cycle is much shorter than the duration of a line frequency cycle and the capacitor voltages are balanced during each switching cycle, output voltage ripple can be limited as desired with a capacitor of much smaller value and size than would otherwise be required. | 2015-07-23 |
20150207435 | MEMS Component And Method For The Production Thereof - The invention proposes a MEMS component having a crystalline base body (GK), a recess (AN) and a structured assembly (A) which closes said recess, in which an opening (OG) is structured in a first functional layer (MN), the effective opening cross section thereof varying as a function of the pressure difference on the two sides of the first functional layer (MN). | 2015-07-23 |
20150207436 | PLEZOELECTRIC GENERATOR FOR SUPPLYING POWER TO PORTABLE TERMINAL - A piezoelectric generator for power supply of a portable terminal is provided. The piezoelectric generator includes: a portable terminal case which has a battery mounting part formed on one surface thereof and has parts of the portable terminal mounted therein; a slide part which is formed on opposite side surfaces of a border of the portable terminal case to be able to slide up and down; and a piezoelectric body which has one end or opposite ends connected with the slide part and is disposed in the battery mounting part in a transverse direction, and which vibrates by a sliding movement of the slide part. | 2015-07-23 |
20150207437 | DRIVE ARRANGEMENT FOR THE MOTORIZED ADJUSTMENT OF AN ADJUSTMENT ELEMENT OF A MOTOR VEHICLE - The invention relates to a drive arrangement for the motorized adjustment of an adjustment element of a vehicle, wherein at least one drive comprising an electric drive motor and a drive control means and is connected to a supply, wherein the drive is designed in a non-self-locking manner, the drive motor operates as a generator and generates a generator voltage, wherein the drive control means has a driver unit for supplying electrical power to the at least one drive. The invention proposes that the drive control means has a switching device and has a detection device for detecting a non-motorized adjustment of the adjustment element, and that the drive control means, when a predetermined, non-motorized adjustment of the adjustment element is detected, connects the supply voltage to the supply connections of the driver unit by means of the switching device in one switching operation. | 2015-07-23 |
20150207438 | INVERTER APPARATUS - Provided is an inverter apparatus capable of preventing occurrence of overcurrent in an AC motor and stably controlling driving of the AC motor. The inverter apparatus controlling the AC motor included in an electric compressor includes a shunt resistor for detecting current flowing in the AC motor, and a limit value control unit controlling a current limit value for a detected current detected at the shunt resistor. The limit value control unit determines whether the number of times the detected current becomes equal to or more than the first threshold within a first predetermined time is equal to or more than a first number of times. The limit value control unit decreases the current limit value when the number of times the detected current becomes equal to or more than the first threshold within the first predetermined time is equal to or more than the first number of times. | 2015-07-23 |
20150207439 | TORQUE RIPPLE REDUCTION IN SWITCHED RELUCTANCE MOTOR DRIVES - A method for controlling a switched reluctance motor, the method comprising: receiving a reference torque T | 2015-07-23 |
20150207440 | MOTION AND CONTROL SYSTEM - A motion and control system, comprising: a current rectifier ( | 2015-07-23 |
20150207441 | CONTROL OF ELECTRICAL MACHINES - An electrical drive system includes an electrical machine whose windings are supplied through solid state switches under the control of a programmable controller. At least two switches act in parallel to provide the current necessary to energise the machine. An apparatus and method are disclosed which enable the controller to monitor the current sharing of the switches and adjust the output of the drive system in the event of any maloperation. | 2015-07-23 |
20150207442 | INTELLIGENT POWER MODULE WITH SNUBBER CAPACITOR FOR SURGE REDUCTION - An intelligent power module having a snubber capacitor for surge reduction installed therein is disclosed. IPM having a snubber capacitor according to an embodiment of the present invention can prevent a device from malfunctioning or being destroyed by a surge voltage. An embodiment of the present invention can allow for easy design of the IPM and reduction of an area and cost of a PCB | 2015-07-23 |
20150207443 | METHOD FOR INCREASING ROTATIONAL SPEED RANGE OF ECM MOTOR - A method for increasing rotational speed range of an ECM motor, including: 1) starting the motor and initializing parameters; 2) reading the rotor position signal from the hall sensor by the microprocessor and updating the rotor angle; 3) reading the DC bus current I and the rotational speed n of the motor; 4) inputting a target rotational speed S from an external device, acquiring the target rotational speed S by the microprocessor, calculating the rotational difference e, and utilizing a rotational speed PI regulator to output a regulating parameter V_D; 5) calculating an advance angle α=F(I, n) by the microprocessor, and calculating a real-time angle of the rotor θ=ω×t by the microprocessor; and 6) calculating a PWM signal input into the inverter circuit, and outputting a PWM chopper voltage U by the inverter circuit, where U=F(V_D, θ+α). | 2015-07-23 |
20150207444 | MOTOR CONTROLLER WITH ENHANCED WOBBLE COMPENSATION - A vehicle includes a motor having a rotor shaft, a transmission having a gear set directly or selectively connected to the motor, a resolver circuit, and a controller. The resolver circuit includes a resolver that measures an absolute position of the shaft, and a resolver-to-digital converter (RDC) which receives the absolute position and generates, via a tracking loop, a raw position signal. The controller includes recorded predetermined frequency characteristics of the RDC and method instructions which cause the controller to receive the raw position signal from the RDC and create a lookup table describing position wobble. The controller compensates for the position wobble at all rotational speeds of the rotor shaft by applying the predetermined frequency characteristics to the position wobble to derive a compensated position signal. The controller also uses the compensated position signal to control an operation of the electric motor. | 2015-07-23 |
20150207445 | SEMICONDUCTOR DEVICE AND DRIVING APPARATUS - In a drive system using a single synchronous motor which is not paired with a synchronous generator, even if a failure occurs in an analog angle data converter for detecting the rotation angle of the synchronous motor, the driving of the synchronous motor can be continued in a temporal emergency manner. In addition to an analog angle data converter for converting an analog sense signal which is output from a rotation angle sensor of a synchronous motor to digital angle data, a digital angle data converter for converting digital data generated by an analog-to-digital converter to digital angle data is provided. In the case where the analog angle data converter fails, digital rotation angle data used for control of the drive circuit which generates a motor drive control signal for the synchronous motor is switched from data generated by the analog angle data converter to data generated by converting conversion result data of the analog sense signal by the analog-to-digital converter, by the digital angle data converter. | 2015-07-23 |
20150207446 | ROTARY ELECTRIC MACHINE CONTROLLER, ROTARY ELECTRIC MACHINE CONTROL METHOD, AND METHOD OF CREATING CONTROL MAP - A rotary electric machine controller according to the present application includes: a superimposer for superimposing a high-frequency signal on one of a voltage and a current of a motor having saliency; an estimator for calculating an estimate value of a magnetic-pole position of a rotor included in the rotary electric machine based on a high-frequency component appearing in the other one of the voltage and the current of the rotary electric machine; a retainer for retaining information relating to a correction amount corresponding to the estimate value of the magnetic-pole position of the rotor; and a corrector for correcting the estimate value of the magnetic-pole position of the rotor based on the information relating to the correction amount. | 2015-07-23 |
20150207447 | MOTOR DRIVE CONTROL DEVICE - A motor drive control device uses a rotor position sensorless control scheme to drive a motor. The motor drive control device includes a rotational speed deriving component, a startup component and a changing component. The rotational speed deriving component derives rotational speed of the motor just before startup of the motor. The startup component starts up the motor by outputting to the motor a drive signal based on at least one of a direct-current excitation scheme that fixes the rotor position in a predetermined position by performing direct-current energization, and a forced drive scheme that accelerates the motor to a predetermined rotational speed by performing forced energization that applies a predetermined voltage and frequency. The changing component changes the drive signal based on at least one of the direct-current excitation scheme and the forced drive scheme in accordance with the rotational speed of the motor derived. | 2015-07-23 |
20150207448 | CONTROLLER FOR MOTOR GENERATOR - An alternating current that is to be supplied to a motor generator is controlled by controlling an inverter using a target output of the motor generator and a result of detection of an angle-of-rotation sensor, and a voltage step-up is controlled in accordance with the target output of the motor generator. During operation of the motor generator, a stepped-up voltage obtained through the step-up converter is set to be higher (S | 2015-07-23 |
20150207449 | METHODS AND SYSTEMS FOR TRANSIENT VOLTAGE PROTECTION - Protection of an electric motor drive controller from a transient voltage is described herein. The transient voltage is provided by an alternating current (AC) power line that includes a line conductor, a neutral conductor, and a ground conductor. The transient voltage protection system includes a first stage protection device coupled to an input of a rectifier of the motor drive controller. The first stage protection device is configured to suppress the transient voltage to prevent damage to the motor drive controller. The transient voltage protection system also includes a second stage protection device coupled between the rectifier and an inverter of the motor drive controller. The second stage protection device is configured to further suppress the transient voltage to prevent damage to the inverter. | 2015-07-23 |
20150207450 | ENERGY CONVERSION AND TRANSFER ARRANGEMENT FOR THERMOPHOTOVOLTAIC DEVICES AND THERMOPHOTOVOLTAIC DEVICES COMPRISING SUCH - An energy conversion and transfer arrangement ( | 2015-07-23 |
20150207451 | PORTABLE SOLAR PANEL KIT - A portable solar panel kit is provided herein. In one embodiment, the portable solar panel kit comprises at least one encasement having a solar panel rotatably coupled to and disposed within the at least one encasement; and a power converter coupled to a backside of the solar panel, wherein the solar panel is moveable between a first position in which the solar panel is parallel to the at least one encasement, and a second position, in which the solar panel is disposed at a predetermined angle to the at least one encasement. | 2015-07-23 |
20150207452 | SINGLE AXIS SOLAR TRACKER - A single axis solar tracker assembly for supporting and controllably rotating a plurality of solar panels is provided. The solar tracker assembly includes a plurality of sub-assemblies which are spaced from one another in a first direction and are operably coupled with a driveshaft that is moveable in the first direction. Each sub-assembly includes at least one torque tube which extends in a second direction and torque arm which is operably coupled with the at least one torque tube. Each sub-assembly further includes a connector which operably connects the torque arm with the driveshaft for rotating the at least one torque tube in response to movement of the driveshaft in the first direction. The connector is pivotably coupled with the torque arm and non-pivotably coupled with the driveshaft and extends in a vertical direction to provide for an increased vertical distance between the torque arm and the driveshaft. | 2015-07-23 |
20150207453 | SELF-BALLASTED APPARATUS FOR SOLAR TRACKING - A frame for mounting a plurality of solar tracking units is provided. The frame comprises a plurality of leg assemblies interconnected by trusses to provide a stable structure that is ballasted by the frame's own weight, rather than relying on external ballast such as concrete blocks. Each leg assembly is provided with a shaft with a mounting end for mounting a solar tracking unit. Each solar tracking unit includes an armature assembly and at least one motor for controlling the orientation and position of a solar panel mounted thereon. Solar tracking assemblies, each comprising the frame and plurality of solar tracking units, can be assembled in an array using connectors spacing the assemblies, thus providing enhanced stability. Each of the assemblies can be provided with a local control unit for controlling each individual solar tracking unit, and a global control unit may be used to control the local control units. | 2015-07-23 |
20150207454 | Photovoltaic Collector System Utilizing Inflatable Tubing - A photovoltaic collector system utilizes inflatable tubing as a non-conventional mounting system. A photovoltaic means is connected to the outer surface of one or more inflatable tubes which are kept pressurized through a tube pressurization system. The inflatable tubes may be rotated with a tube rotation system in order to position the photovoltaic means at an advantageous angle relative to the sun for efficiently collecting sunlight for electricity generation. | 2015-07-23 |
20150207455 | Dense-Array Concentrator Photovoltaic System Utilising Non-Imaging Dish Concentrator And Array Of Crossed Compound Parabolic Concentrators - Disclosed is a solar concentrator assembly ( | 2015-07-23 |
20150207456 | POWER CONVERSION APPARATUS, PHOTOVOLTAIC MODULE AND COMMUNICATION DEVICE AND PHOTOVOLTAIC SYSTEM INCLUDING THE SAME - A power conversion apparatus, a photovoltaic module, and a communication device and a photovoltaic system including the same are discussed. The power conversion apparatus includes an inverter unit to perform alternating current (AC) voltage conversion based on direct current (DC) voltage from a solar cell module, a controller to control the inverter unit, and a communication unit to add a carrier frequency signal containing predetermined information to the converted AC voltage and output the AC voltage containing the predetermined information to a grid and, when a level of the converted AC voltage is equal to or less than a predetermined level, to add the carrier frequency signal containing the predetermined information to DC voltage and output the DC voltage containing the predetermined information to the grid. Consequently, it is possible to stably transmit information. | 2015-07-23 |
20150207457 | THERMIONIC CONVERTER DEVICE - Converter device for converting energy from electromagnetic radiation, in particular concentrated solar energy, in electrical power, comprising a thermionic emitter ( | 2015-07-23 |