25th week of 2017 patent applcation highlights part 78 |
Patent application number | Title | Published |
20170179766 | SYSTEMS AND METHODS FOR WIRELESS POWER TRANSFER IN MULTIPATH VEHICLE ENVIRONMENTS - Systems and methods for leveraging multipath wireless transmissions for high data rate communication and charging devices within multipath vehicle environments are described. The techniques include deploying a wireless charger, including an array of antennas, within a vehicle interior. The wireless charger may detect an incoming signal from a client device. Each antenna in the array may determine an offset for the received signal, which is then used to tune parameters for each antenna individually. Upon transmission, the resulting signal is directionally biased toward the least lossy pathways between the device and the charger. These pathways avoid passengers and other sources of signal attenuation. Thus, for a given total power envelope, a greater total signal amplitude may be delivered to the device, with reduced exposure to any occupants of the vehicle. Additionally, the interior of the vehicle may be provisioned to help improve multipath focusing of transmissions. | 2017-06-22 |
20170179767 | COIL ASSEMBLY AND WIRELESS POWER TRANSMISSION SYSTEM - A coil assembly and a wireless power transmission system are provided. The coil assembly includes a first coil and a second coil. The first coil is disposed on a first plane. The second coil is disposed on a second plane. The second coil is coupled to the first coil. The second coil includes a plurality of bending section, and the bending sections are connected by a plurality of connection lines to form a single loop. | 2017-06-22 |
20170179768 | PORTABLE CHARGING SYSTEM AND HYBRID BATTERY - A portable charging system has a first part with an electrical power source and a first housing having a first three dimensional shape. A second part that is separate from and independent of the first part has a second housing with a second three dimensional shape comprising a complementary shape to the first three dimensional shape and a charge storage unit containing an ultracapacitor. The charge storage unit is disposed in the second housing. The first three dimensional shape mates with the second three dimensional shape to align the first part with the second part to facilitate wireless transfer of power from the electrical power source to the charge storage unit for storage in the ultracapacitor. | 2017-06-22 |
20170179769 | CONTACTLESS POWER TRANSFER SYSTEM AND METHOD FOR CONTROLLING THE SAME - A contactless power transfer system is provided. The contactless power transfer system includes a first power exchanger coil configured to exchange power. The contactless power transfer system also includes a first power converter operatively coupled to the first power exchanger coil and configured to convert a direct current power to an alternating current power at a system frequency. The contactless power transfer system further includes a controller configured to control an operating state of the first power converter to vary an alternating current power provided to the first power exchanger coil at the system frequency. | 2017-06-22 |
20170179770 | WIRELESS POWER TRANSFER SYSTEM FOR WIRELESSLY TRANSFERRING ELECTRIC POWER IN NONCONTACT MANNER BY UTILIZING RESONANT MAGNETIC FIELD COUPLING - There is provided a frequency controller apparatus for use in a wireless power transmitter apparatus configured to wirelessly transmit an inputted power from a power transmitting antenna that includes a first resonant circuit, toward a power receiving antenna that includes a second resonant circuit and is electromagnetically coupled to the power transmitting antenna at a predetermined transmission frequency. The frequency controller apparatus includes a controller for changing the transmission frequency during a power transfer, and the controller sets a decrease amount when decreasing the transmission frequency, so that the decrease amount is smaller than an increase amount when the transmission frequency is increased. | 2017-06-22 |
20170179771 | System And Methods For Using Sound Waves To Wirelessly Deliver Power To Electronic Devices - Wireless charging systems, and methods of use thereof, are disclosed herein. As an example, a method includes: receiving, at a computer system, information identifying a location of a receiver device that requires charging, the location is within a predetermined range of the computer system; transmitting a first set of sound waves, via one or more transducer elements of a first pocket-forming transmitter that is coupled with the computer system, that converge in 3-D space proximate to the predetermined location of the receiver device to form a pocket of energy; while transmitting the first set of sound waves: (i) receiving a second set of sound waves from a second pocket-forming transmitter, distinct from the first pocket-forming transmitter; and (ii) charging the computer system by converting energy from the second set of sound waves into usable power. | 2017-06-22 |
20170179772 | FOREIGN OBJECT DETECTOR, POWER TRANSMITTING DEVICE AND POWER RECEIVING DEVICE FOR WIRELESS POWER TRANSMISSION, AND WIRELESS POWER TRANSMISSION SYSTEM - A foreign object detector detects a metallic foreign object between a first resonator and a second resonator which is composed of a parallel resonant circuit including a coil and a capacitor. The foreign object detector includes the first resonator; an oscillator circuit capable of oscillating at a first frequency (f1) which is lower than a resonant frequency (fr) of the second resonator and at a second frequency (f2) which is higher than the resonant frequency (fr); and a measurement circuit to measure changes in input impedance of the first resonator. The measurement circuit detects a metallic foreign object between the first resonator and the second resonator based on: changes in input impedance of the first resonator as measured by the measurement circuit while the oscillator circuit is oscillating at the first frequency f1; and changes in input impedance of the first resonator as measured by the measurement circuit while the oscillator circuit is oscillating at the second frequency f2. | 2017-06-22 |
20170179773 | COIL FOR WIRELESS COMMUNICATIONS, COIL MODULE AND MOBILE TERMINAL USING THE SAME - A composite wireless transmitter coil includes a first coil; and a second coil spaced apart from the first coil, wherein the first coil and the second coil form a first magnetic field, and a magnetic line of force of the first magnetic field has a closed loop shape that passes through a region of the first coil and a region of the second coil. | 2017-06-22 |
20170179774 | ULTRASOUND PROBE AND CHARGING METHOD THEREOF - Provided are a wireless ultrasound probe and a method of charging a battery included in the wireless ultrasound probe by receiving wireless power that is directionally transmitted toward a position of the wireless ultrasound probe and focusing received wireless power. | 2017-06-22 |
20170179775 | STATOR AND MOTOR HAVING SAME - Provided is a stator including: a plurality of stator cores; a bobbin wrapped around an outer circumferential surface of the stator core; and a coil wound around an outer circumferential surface of the bobbin, wherein each of the plurality of stator cores includes a first core portion that is formed by laminating a plurality of iron pieces, and around which a coil is wound, and a second core portion coupled to one end of the first core portion and disposed to face a magnet of a rotor and formed to be wider than an end surface area of the first core portion, and a motor having the same, to thus improve the efficiency of the motor. | 2017-06-22 |
20170179776 | COMPOSITE ELECTRIC MACHINE - A method for producing an annular active part of an electric machine, where the active part has ring segment-shaped sections with grooves for receiving electric conductors, an electric machine with the ring segment-shaped section, a mill with the electric machine, and a service method for such an electric machine or such a mill, and where the goal is to assembly the electric machine inexpensively. | 2017-06-22 |
20170179777 | Gravity and Magnetic Motor - A motor device utilizing gravitational and magnetic forces in conjunction with a manual user input of energy. The motor device includes a support frame configured to support a plurality of L-shaped magnetic strips with an axle disposed in a horizontal orientation thereacross. A plurality of levers are mounted to the axle by a linear bearing having an arm slidably disposed therein. The arm has a magnet at each end that is repelled by the magnetic strips, causing the repelled end of the arm to slide through the linear bearing and elongating the opposing end of the arm. This creates an unbalanced fulcrum thereby rotating the arm. As the arm of the first lever rotates, the axle rotates causing all subsequent levers to rotate thereby driving the motor. | 2017-06-22 |
20170179778 | MAGNETIC MOTOR - A magnetic motor includes a rotor and a stator, in which there are magnets and materials of high magnetic permeability. The stator magnets are arranged with surfaces facing the rotor magnets in a staggered arrangement. The motor may be used to boost torque, for example in bicycles. | 2017-06-22 |
20170179779 | ROTOR LAMINATIONS HAVING REDUCED STRESS MAGNET STOP - A rotor rotatable about an axis includes a plurality of magnets and a plurality of laminations stacked along the axis. The laminations have an outer surface distal from the axis and an inner surface proximal to the axis. A plurality of magnet slots are defined between the outer surface and the inner surface between an exterior barrier near the outer surface and an interior barrier near the inner surface. The magnets are disposed within the magnet slots between the exterior barrier and the interior barrier, such that a first end of the magnet is adjacent the exterior barrier and a second end of the magnet is adjacent the interior barrier. An inner retention stop extends into the magnet slots at the interior barrier, and is formed within the interior barrier nearer the outer surface. | 2017-06-22 |
20170179780 | ROTATING ELECTRICAL MACHINE AND PRODUCTION METHOD FOR ROTATING ELECTRICAL MACHINE - Bridge portions forming coil end portions, at both ends in an axial direction, of a stator of the rotating electrical machine according to the present invention are configured coaxially about an axis of the stator; at least one bridge portion of the bridge portions of each coil at both ends in the axial direction is located outward of an inner peripheral surface of the stator; and a gap is present between an end surface of a stator core in the axial direction and each bridge portion. | 2017-06-22 |
20170179781 | STATOR USED FOR MOTOR, MOTOR AND VENTILATION COOLING METHOD FOR MOTOR - A stator used for a motor, the motor and a ventilation cooling method for the motor. The stator includes concentrated windings, and at least two wedge blocks are arranged at the gaps between the adjacent concentrated windings. The at least two wedge blocks are distributed on the concentrated windings in a staggered manner to form a first ventilation path. Therefore, the concentrated windings can be cooled effectively, the concentrated windings are effectively constrained in the circumferential direction by means of the at least two wedge blocks, the service life of the motor is further prolonged, and the reliability of the motor is improved. | 2017-06-22 |
20170179782 | ELECTRIC MOTOR HAVING WAVE-WINDING COIL AND MANUFACTURING METHOD THEREOF - An electric motor having a stator, in which the number of coils and the number of jumper wires between the coils are reduced, and a method for manufacturing the electric motor. An 8-shaped coil is formed by twisting a portion of one annular coil, and then the coil is inserted and positioned in three slots. A first coil portion of the 8-shaped coil including two overlapped edges is inserted into the center slot, and other two edges, i.e., second coil portions positioned opposed to the first coil portion in the circumference direction of the stator with respect to each ring constituting the 8-shape, are respectively inserted into the slots at the both side of the center slot, in which each second coil portion does not include overlapped winding wires. | 2017-06-22 |
20170179783 | CANNED MOTOR AND VACUUM PUMP - Provided is a canned motor to be coupled to a vacuum pump and used as a rotary driving source for the vacuum pump. The canned motor includes: a stator core; a rotor provided on an inner side of the stator core; and a non-conductive can provided between the stator core and the rotor. The non-conductive can is configured to separate the stator core and the rotor from each other. The non-conductive can is made of resin, ceramic, or composite material thereof. The non-conductive can is bonded to the stator core with an adhesive. | 2017-06-22 |
20170179784 | BRUSHLESS MOTOR - A cover member has a cylinder in the center of a cover part. A second sliding bearing is fastened to the cylinder. A rotary shaft protrudes upward from the cylinder without contact with the second sliding bearing. A first sliding bearing is a main bearing, which can radially support the rotary shaft, and the second sliding bearing is an auxiliary bearing which, when the rotary shaft is subjected to a load from the radial direction, bears that load in the radial direction together with the first sliding bearing. When the angle of inclination of the rotary shaft in the first sliding bearing is not maximal, the rotary shaft is supported only by the first sliding bearing, without the rotary shaft contacting the inside of the second sliding bearing. The amount of deformation of the rotary shaft when a load is applied to the rotary shaft from the radial direction and the rotary shaft first makes contact with the second sliding bearing is in a range from 0 to the maximum elastic deformation. | 2017-06-22 |
20170179785 | MOTOR FRAME - A motor frame is disclosed. According to an exemplary embodiment in the present disclosure, a motor frame includes a main frame including a component of a motor provided therein; and a front cover and a rear cover covering an open front surface and an open rear surface of the main frame, respectively, and having cores into which the component of the motor is inserted, respectively, in which a region between the main frame and the cores is asymmetrical in a vertical direction. | 2017-06-22 |
20170179786 | ELECTRICAL CONNECTION STRUCTURE, TERMINAL STRUCTURE, AND VEHICLE - An electrical connection structure includes a first conductor, a second conductor, and a conductive spring. The first conductor includes a first plate. The second conductor includes a second plate opposite to the first plate. The conductive spring is provided between the first plate and the second plate so as to be pressed by the first plate and the second plate. The conductive spring includes a plurality of first contact points contacting with the first plate and a plurality of second contact points contacting with the second plate. | 2017-06-22 |
20170179787 | Step Actuator - Disclosed is a step actuator. The step actuator includes a housing; a stator installed in the housing; a rotor positioned radially inward from the stator, the rotor rotating and protruding from one side of the housing; a bearing installed at one side of the housing so as to be coupled with the rotor; a bearing cover coupled with one side of the housing to restrain movement of the bearing; a screw member coupled with the rotor to linearly move according to rotation of the rotor; and a mounting member coupled to the bearing cover to support the screw member. | 2017-06-22 |
20170179788 | FAILURE MODE PROTECTION FOR ELECTROMECHANICAL BATTERY - An electromechanical battery can include a rotary member made at least in part of a first material composition. The rotary member having an interior surface defining an internal core cavity and at least one central chamber. A plurality of permanent magnets supported by the interior surface of the core cavity. A core member can be disposed within the core cavity. At least one levitating magnet can be supported by an exterior surface of the core member. The rotary member levitated with respect to the core member by the permanent magnets and levitating magnet. A second material composition can reside within at least one of the rotary member and the core member. The first member material composition converts through chemical reaction when exposed to the second material composition into a third material composition. The third material composition characterized by energy absorption resisting continued rotation of the rotary member. | 2017-06-22 |
20170179789 | ELECTRIC MOTOR FOR VACUUM CLEANER - There is provided an electric motor suitable for a vacuum cleaner, which achieves high output and high efficiency in operation at a rotation of 30,000 rpm or more, required for a motor for a vacuum cleaner, as well as enables its life to be extended. The electric motor includes a rotor core and a commutator that are coaxially fixed to a rotating shaft, and a stator core arranged around the rotor core. The rotor core and the stator core comprises a plurality of rotor core elements and a plurality of stator core elements, each formed of a thin electromagnetic steel plate having a thickness of less than 0.3 mm, are stacked and fixed in layers. Each of the plurality of rotor core elements has a diameter including a tip of each of teeth, within a range of approximately 35 mm to 40 mm, and each of the teeth has a length in a longitudinal direction that is one-third or more of a radius of the rotor core element. At least surfaces of the respective rotor core elements, facing each other, are fixed with adhesive to form the rotor core. | 2017-06-22 |
20170179790 | APPLICATION OF COMBINED PROBABILISTIC CONTROL IN GAS TURBINE TUNING FOR POWER OUTPUT-EMISSIONS PARAMETERS WITH SCALING FACTOR, RELATED CONTROL SYSTEMS, COMPUTER PROGRAM PRODUCTS AND METHODS - Various embodiments include a system having: at least one computing device configured to tune a set of gas turbines (GTs) by performing actions including: commanding each GT in the set of GTs to a base load level, based upon a measured ambient condition for each GT; commanding each GT in the set of GTs to adjust a respective power output to match a scaled power output value equal to a fraction of a difference between the respective power output and a nominal power output value, and measuring an actual emissions value for each GT during the adjusting of the respective power output; and adjusting an operating condition of each GT in the set of GTs based upon a difference between the respective measured actual emissions value, a nominal emissions value at the ambient condition and a nominal emissions value at the ambient condition. | 2017-06-22 |
20170179791 | Methods for Generating Power From Miniature Electrical Generators and Power Sources - A method for generating electrical power, the method including: storing potential energy in an elastic element having one end attached to a shaft and another end attached to a structure upon rotation of the shaft relative to the structure in a first angular direction; and moving a retaining mechanism between an engaged position for retaining the shaft from rotating in a second angular direction opposite to the first angular direction and a power generating position permitting the shaft to rotate in the second angular direction; wherein when the retaining mechanism is moved to the power generating position, the stored potential energy in the elastic element is converted to kinetic energy to rotate the shaft which in turn rotates a generator operatively coupled to the shaft so as to produce electrical power. | 2017-06-22 |
20170179792 | ENCLOSED MOTOR UTILIZING RECIRCULATING COOLANT AIR - An electric motor includes a housing, a rotor rotatable about an axis, a stator including a core and a plurality of coils wound about the core, a commutator, and a fluid-driving element configured to drive a fluid. The housing defines an internal chamber including a stator-receiving space at least substantially receiving the stator, a commutator-receiving space at least substantially receiving the commutator, and an element-receiving space at least substantially receiving the fluid-driving element. The housing further defines a cooling pathway fluidly interconnected with the internal motor chamber and disposed at least in part radially outside the stator. The fluid-driving element and the housing are cooperatively configured to direct the fluid through each of the stator-receiving space, the commutator-receiving space, the element-receiving space, and the cooling pathway. | 2017-06-22 |
20170179793 | BRUSH HOLDER ASSEMBLY FOR AN ELECTRIC MOTOR - The present invention relates to a brush holder assembly ( | 2017-06-22 |
20170179794 | CONTROLLER-INCLUDED ROTATING ELECTRICAL MACHINE - A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller | 2017-06-22 |
20170179795 | DRIVER ASSEMBLY - A driver assembly comprises a predetermined number of semiconductor switches, wherein one of the semiconductor switches is arranged inside of a circular curve and the remaining semiconductor switches are arranged on the circular curve. | 2017-06-22 |
20170179796 | POWER CONVERTER AND ROTARY ELECTRIC MACHINE - In a power converter, outer lead frames are drawn out from a semiconductor module and are bent to be separated from a cooler. Each of the outer leads has a terminal end. The terminal end of each outer lead frame projects from a virtual plane extending along a second surface of a housing. Connector leads each includes an inner portion disposed in the housing, and an outer portion drawn out from the housing and bent to be separated from the cooler. The outer portion of each connector lead has a terminal end. The terminal end of the outer portion of each connector lead projects from the virtual plane. | 2017-06-22 |
20170179797 | METHOD FOR MANUFACTURING A STACKED IRON CORE OF A VEHICLE DRIVE MOTOR - In a method for manufacturing a stacked iron core, a stacked iron core body is manufactured by stacking so as to be phase-offset with respect to each other in the circumferential direction plural ring-shaped iron core pieces respectively configured by plural circular arc-shaped iron core pieces arranged into ring shapes. Next, each layer of the circular arc-shaped iron core pieces, which are phase-offset with respect to each other in the circumferential direction, is welded together along a stacking direction at plural locations (plural weld portions) arranged around the circumferential direction of an inner circumferential portion or an outer circumferential portion of the stacked iron core body. A pair of key protrusions is formed on inner circumferential portions of the stacked iron core at positions opposing each other, and so key components are rendered unnecessary when assembling a rotor of a vehicle drive motor. | 2017-06-22 |
20170179798 | MANUFACTURING DEVICE FOR ROTARY ELECTRIC MACHINE AND MANUFACTURING METHOD FOR ROTARY ELECTRIC MACHINE - A manufacturing device that is used in a manufacturing method for a rotary electric machine is equipped with an insertion roller having an outer circumferential surface configured to contact a coil lead line in such a manner that the coil lead line is inserted into accommodating grooves of an insulator, a roller support section that rotatably supports the insertion roller, and a bending unit that performs a bending process to bend the coil lead line by coming into contact with the coil lead line so as to form a terminal part. | 2017-06-22 |
20170179799 | METHOD FOR WINDING A PLURALITY OF COIL BODIES AND SEGMENTED SPINDLE - A method for winding a plurality of coil bodies for the production of electric motors using a segmented spindle. According to the method, a number of coil bodies are coupled to at least one intermediate part and two end parts to form a segmented spindle, and the segmented spindle is arranged in/on a winding machine. In this way, the coil bodies are wound in a synchronized manner. As a result, only a rotatable spindle is required for the winding of a number of coil bodies. | 2017-06-22 |
20170179800 | CONCENTRIC DUAL ROTOR ELECTRIC MACHINE - A multi-rotor electric machine includes a first rotor, a stator, and a second rotor. The stator is disposed concentric with the first rotor and is disposed radially outward from the first rotor. The stator has a first plurality estate or windings disposed proximate first stator teeth of the stator. The stator has a second plurality of stator windings disposed proximate second stator teeth of the stator. The second rotor is disposed concentric with and is disposed radially outward from the stator. The second rotor is rotatable relative to the first rotor. | 2017-06-22 |
20170179801 | RELUCTANCE ROTOR WITH MECHANICAL STABILIZING - A reluctance rotor for an electric machine includes rotor lamination layers made of a ferromagnetic material, wherein each rotor lamination layer has a flux barrier formed by a recess in the rotor lamination layer. In order to toughen the reluctance rotor for a high torque and a high rotational speed, the reluctance rotor has an intermediate part with recesses arranged between a first and a second rotor lamination layer, and separators delimiting the recesses from one another. The recesses of the intermediate part and the separators are arranged axially between the flux barriers, wherein the recesses of the intermediate part and the flux barriers together delimit a space. The space is cast with a non-ferromagnetic casting compound. | 2017-06-22 |
20170179802 | ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING CYCLE APPARATUS - A stator of an electric motor ( | 2017-06-22 |
20170179803 | Motor - A motor includes a stator, a rotor rotatable relative to the stator, a support member, and a circuit assembly. The circuit assembly includes a plurality of electronic components. The rotor is rotatably mounted to the support member. The stator is received in the rotor. The stator is fixed to the support member, and the support member is at least partially received in an inner side of the stator. A portion of the support member received in the inner side of the stator defines a receiving space, and at least part of the electronic components of the circuit assembly is received in the receiving space of the support member. The support member is partially received in the inner side of the stator, and the circuit assembly is at least partially received in the support member, which makes the motor have a relatively smaller axial size. | 2017-06-22 |
20170179804 | Vibration Motor - The present disclosure is related to a vibration motor. The vibration motor includes a housing, a vibrator, a stator and an elastic part. One of the vibrator and the stator includes a coil, and the other includes a magnet opposite to the coil. The elastic part includes a first fixation part, a second fixation part and a connecting part. A weight includes a first side and a second side and a gap part formed by denting towards the direction far from a first side wall from the first side. The weight further includes a welding part protruding from the center of the gap part and extends to the edge of the gap part. The durability of the elastic part is accordingly increased, and the reliability of the product is thus improved. | 2017-06-22 |
20170179805 | DISPLACEMENT DEVICES AND METHODS FOR FABRICATION, USE AND CONTROL OF SAME - A displacement device comprise a stator having a plurality of electrically conductive coils shaped to provide: a first plurality of coil traces generally elongated in a stator-x direction and distributed over at least a first portion of a first layer; a second plurality of coil traces generally elongated in a stator-y direction and distributed over at least a second portion of a second layer. The first and second portions of the first and second layers overlapping one another in a stator-z direction. The displacement device also comprises a moveable stage having one or more magnet arrays. The moveable stage is moveable relative to the stator within a two-dimensional working region. The one or more magnet arrays include a first magnet array comprising a plurality of first magnetization segments, each having a corresponding first magnetization direction. The displacement device comprises one or more amplifiers connected to drive a plurality of currents in the plurality of electrically conductive coils; and a controller configured to control the currents driven by the one or more amplifiers and to thereby cause the moveable stage to track a desired position, (x | 2017-06-22 |
20170179806 | METHODS AND SYSTEMS FOR CONTROLLABLY MOVING MULTIPLE MOVEABLE STAGES IN A DISPLACEMENT DEVICE - Aspects of the invention provide methods and systems for moving a plurality of movable stages relative to a stator. The stator comprises a plurality of coils shaped to provide pluralities of coil trace groups where each coil trace group comprises a corresponding plurality of generally linearly elongated coil traces which extend across a stator tile. Each movable stage comprises a plurality of magnet arrays. Methods and apparatus are provided for moving the movable stages relative to the stator, where a magnet array from a first movable stage and a magnet array from a second movable stage both overlap a shared group of coil traces. For at least a portion of the time that the magnet arrays from the first and second movable stages overlap the shared group of coil traces, currents are controllably driven in the shared coil trace group based on the positions of both the first and second movable stages. The positions of the first and second movable stages may be ascertained by feedback. | 2017-06-22 |
20170179807 | MAGNETIC MOTOR DEVICE OF AN ELECTRODYNAMIC TRANSDUCER - A magnetic motor device of an electrodynamic transducer, which includes a bonded annular magnet and a tubular element mounted coaxially relative to the bonded annular magnet. The bonded annular magnet includes a magnetic cylindrical surface, while the tubular element includes a winding extending opposite the magnetic cylindrical surface, the tubular element configured to be driven axially relative to the bonded angular magnet when electric power is supplied to the winding. A metal tubular member includes a metal cylindrical surface, and the metal tubular member is mounted coaxially relative to the tubular element such that the metal cylindrical surface extends opposite the magnetic cylindrical surface relative to the winding. | 2017-06-22 |
20170179808 | SYSTEMS AND METHODS FOR REGULATING OUTPUT CURRENTS OF POWER CONVERSION SYSTEMS - Systems and methods are provided for regulating a power conversion system. An example system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to receive a first signal associated with an input signal for a primary winding of a power conversation system. The second controller terminal is configured to output a drive signal to a switch to affect a first current flowing through the primary winding of the power conversion system, the drive signal being associated with an on-time period, the switch being closed during the on-time period. The system controller is configured to adjust a duration of the on-time period based on at least information associated with the first signal. | 2017-06-22 |
20170179809 | SWITCH CONTROL CIRCUIT INCLUDING MULTIPIN TO SET DEAD TIME INFORMATION AND/OR PROTECTION MODE - A switch control circuit includes a first pin connected to a first voltage, and a second pin connected to another end of a first resistor including an end connected to the first pin and a first capacitor. In the switch control circuit, at least two of first dead time information, second dead time information, and a protection mode are set by using a multi-voltage of the second pin. The first dead time information is information about a dead time of a first switch and a second switch controlling power supply, the second dead time information is information about a dead time for synchronous rectification, and the protection mode includes an auto-restart mode and a latch mode. | 2017-06-22 |
20170179810 | STORAGE TIME CONTROL - A controller for use in a power converter includes a first terminal to provide a turn on signal to initiate turning on of a power switch and a second terminal to provide a turn off signal to initiate turning off the power switch. A detection circuit is coupled to detect a turn off time delay. The turn off time delay is the duration of time between an initiating of a turn off of the power switch by the turn off signal and an actual turn off of the power switch. A control circuit is coupled to control the turn on signal to regulate the turn off delay time to a target time value. The control circuit controls the turn on signal by controlling an amount of charge delivered to turn on the power switch. | 2017-06-22 |
20170179811 | ELECTRONIC CIRCUIT AND METHOD FOR OPERATING AN ELECTRONIC CIRCUIT - An electronic circuit ( | 2017-06-22 |
20170179812 | SOFT START CIRCUIT AND POWER SUPPLY DEVICE EQUIPPED THEREWITH - To provide a soft start circuit capable of obtaining a high-accuracy soft start time. The soft start circuit is equipped with a constant current source, an output terminal which outputs a soft start voltage, a ground terminal, a first transistor which is connected between the constant current source and the ground terminal and has a gate and a drain both short-circuited, a second transistor which is connected between the constant current source and the output terminal and receives a clock signal at a gate thereof, and a capacitor connected between the second transistor and the ground terminal. | 2017-06-22 |
20170179813 | Holdup Time Circuit and Method for Bridgeless PFC Converter - An embodiment holdup time circuit of a bridgeless power factor correction circuit comprises a charge device connected between an output terminal of a bridgeless power factor correction circuit and an energy storage apparatus, a discharge device connected between the energy storage apparatus and an input of the bridgeless power factor correction circuit, the energy storage apparatus and the bridgeless power factor correction circuit comprising a first boost converter, a second boost converter, a first switch and a second switch, wherein the first switch is connected between the first boost converter and ground and the second switch is connected between the second boost converter and ground. | 2017-06-22 |
20170179814 | RESONANT SYSTEM CONTROLLER AND CYCLE-BY-CYCLE PREDICTIVE SOFT SWITCHING - Disclosed techniques achieve soft-switching conditions by determining relative timing of switch states and events, and making recurring timing adjustments in successive cycles (i.e., cycle-by-cycle) to reduce timing errors that introduce switching losses. Timing adjustments provide a prediction of when an optimal soft-switching condition will exist during a subsequent cycle so that switch-actuation signals are provided, irrespective of inherent signaling and feedback delays, in advance of actually observing the condition, thereby subsequently changing a switching state within a desired threshold of the targeted soft-switching condition. Error in the prediction is observed and compensating corrections applied during the next cycle. The predictive nature of the timing corrections provides for rapid convergence on, and recurring refinement of, optimal timing parameters for multiple opposing switches that are coordinated so that the system (be it self- or forced-resonant circuitry) operates at high efficiency with minimal hard-switching or diode conduction losses. | 2017-06-22 |
20170179815 | EMI FILTER AND SWITCHING POWER SUPPLY WITH THE SAME - An EMI filter configured for an AC-DC switching power supply, and that is coupled between a DC-DC converter and a rectifier circuit that receives an AC power supply, can include: an input capacitor coupled in parallel to input terminals of the DC-DC converter; a transistor having a first terminal coupled to a first terminal of the input capacitor, and a second terminal coupled to ground; and a control circuit configured to generate a control signal that controls the transistor according to a feedback voltage that represents ripple information of an input voltage to the DC-DC converter, and at least one of a current that flows through the transistor, and a voltage at the first terminal of the transistor, where the control signal is used to regulate the voltage at the first terminal of the transistor to substantially eliminate switching frequency ripples from an input current of the DC-DC converter. | 2017-06-22 |
20170179816 | BOOST CONVERTER MAXIMAL OUTPUT POWER DETECTOR ALLOWING OPTIMAL DYNAMIC DUTY-CYCLE LIMITATION - A method and apparatus for detecting a critical duty cycle that maximizes an output power of a boost converter is provided. In the method and apparatus, boost converter is operated may be operated at or below the critical duty cycle. In the method and apparatus, a first voltage that is a function of an output voltage of a boost converter and voltage drops across a first set of parasitic resistances of the boost converter is detected. A second voltage that is a function voltage drops across a second set of parasitic resistances of the boost converter is also detected. The voltages are compared to determine the critical duty cycle and the boost converter is operated in accordance with a duty cycle that does not exceed the critical duty cycle. | 2017-06-22 |
20170179817 | Power Supply Electronic Circuit - A power supply electronic circuit is provided. The power supply electronic circuit comprises: an intermediate bus converter (IBC), arranged to convert a voltage inputted to the IBC to an intermediate bus voltage on an intermediate bus; at least one direct current to direct current (DC-DC) or point of load (POL) converter, connected to the intermediate bus and arranged to convert the intermediate bus voltage to a voltage for feeding a load; and a capacitor tank connected to the intermediate bus and arranged as hold up capacitor tank to preserve power supply to the load. The IBC comprises a current ripple control circuit for suppressing current ripple in an input of the power supply electronic circuit. | 2017-06-22 |
20170179818 | Systems and Methods for Controlling a Voltage Multiplier Ladder for Optimal Efficiency and Minimal Component Stress - A system comprises a voltage multiplier ladder, a driver that provides an input voltage to the voltage multiplier ladder, and a controller that regulates the driver such that a voltage stress in the ladder is evenly distributed and do not exceed a maximum allowable stress and meanwhile the ladder is operating at an optimal efficiency. | 2017-06-22 |
20170179819 | CHARGE PUMP CIRCUIT AND STEP-DOWN REGULATOR CIRCUIT - A charge pump circuit includes a capacitor, a first switch between the capacitor and a power supply terminal, a second switch between the capacitor and an output terminal, a third switch between the output terminal and the capacitor, a fourth switch between the capacitor and a ground terminal, and a control unit configured to generate control signals for the switches. The control signals include first signals generated during a first period that cause first and third switches to be in an ON state and second and fourth switches to be in an OFF state, second signals generated during a second period that cause first and third switches to be in an OFF state and second and fourth switches to be in an ON state, and third signals generated between the first and second periods, that cause the ON/OFF state of each of the switches to be switched at different times. | 2017-06-22 |
20170179820 | INTERNAL POWER SUPPLY CIRCUIT AND SEMICONDUCTOR DEVICE - A control switch is connected to a power supply voltage and turns on based on a control signal to output a current. A clamp circuit is connected to a load and performs clamp control of the output voltage of the control switch. A current control element conducts or shuts off a current based on the output voltage to be clamp-controlled. A selector switch group includes switches, and performs switching based on a voltage varying with the current control by the current control element, thereby switching between paths for generating an internal power supply. The switch circuit connects or disconnects the coupling between the clamp circuit and the selector switch group. | 2017-06-22 |
20170179821 | QUASI UNIVERSAL FEED FORWARD DC TO DC CONVERTER AND METHOD - This invention proposes using a feed forward quasi universal converter for energy harvesters, and uses it to power IoTs (Internet of things). A typical DC to DC converter uses voltage feedback control or current feedback control. It is not easy for the input impedance to closely match the output impedance of the power source. In the meantime, it also meets its output voltage and power targets. The Feed forward Quasi Universal Converter proposed in this invention controls the input impedance and the output voltage/power within a range that meets the design targets. It is also achieved with a simple electronic adjustment when the source impedance changes or the output requirements change. It has the potential to shorten the IoTs system industry's product development cycle, reduce installation and maintenance costs and facilitate the adoption of hybrid energy sources. | 2017-06-22 |
20170179822 | Multi-Threshold Panic Comparators for Multi-Phase Buck Converter Phase Shedding Control - A control circuit included within a multi-phase switched-mode converter is configured for adjusting operational signals for adding power stages of the multi-phase switched-mode converter to dynamically respond to transient changes in load current for minimizing undershoot while avoiding overshoot of an output voltage of the multi-phase switched-mode converter. The control circuit has panic comparators configured such that each panic comparator has an input terminal connected to receive the output voltage for comparison with one of a plurality of reference voltages. A panic controller receives panic indicator signals from the panic comparators and determines which of the power stages are to be activated to match the transient change to the load current to prevent for minimizing undershoot and for preventing overshoot of the output voltage of the multi-phase switched-mode converter. The multi-phase switched-mode converter may operate in a continuous or discontinuous conduction mode. | 2017-06-22 |
20170179823 | LOW POWER ZERO INDUCTOR CURRENT DETECTION CIRCUIT - Methods and apparatus for detecting a zero inductor current to control switch transitions for a power converter. An example method includes outputting a first voltage and a first current, receiving the first voltage and output a second voltage into an input of a comparator, when the second voltage is above a third voltage, outputting a first output voltage, when the second voltage is below the third voltage, outputting a second output voltage, determining when the first current is zero based the output of the comparator, enabling a set of switches based on when the first current is zero. | 2017-06-22 |
20170179824 | CURRENT SENSING IN A POWER SUPPLY - During operation, a protection circuit receives an input voltage representative of current delivered by a power supply phase to a load. In one configuration, the input voltage is received as the voltage across respective drain-source nodes of a synchronous switch (low side switch) disposed in a power supply. The protection circuit selectively controls conveyance of the input voltage so that damaging transient voltages on the input voltage are not passed to a downstream sampling circuit. The sampling circuit includes a capacitor circuit to store the sample of the input voltage. During operation, the sampling circuit utilizes the input voltage conveyed by the input voltage circuit to charge the capacitor with a sample voltage representative of the current. Because the sampling circuit is protected from the damaging transient voltages via the protection circuit, the sampling circuit as well as other downstream circuitry can be fabricated from a type of transistors other than those used in the input voltage circuit to facilitate more accurate current calculations using a small sized capacitor to store the sample of the input voltage. | 2017-06-22 |
20170179825 | SWITCHED MODE POWER SUPPLY CONVERTER - A method and apparatus for switched mode power supply (SMPS) system includes circuitry configured to produce a voltage output based on an input voltage, the SMPS circuitry includes inductive, capacitive and switching elements configured to generate the voltage output. The switching elements include at least one set of cascode coupled devices, each set of cascode coupled devices including a high electron mobility transistor (HEMT) and one of a diode and a field effect transistor (FET) in a cascode coupling. A controller produces a signal to a gate terminal of the FET of the sets of cascode coupled devices to drive the HEMT switching rate to adjust the output voltage. The circuitry of the SMPS further includes circuitry to couple the substrate of at least one HEMT to a high voltage node of the SMPS system to reduce large voltage spikes or dv/dts. | 2017-06-22 |
20170179826 | Switchless Capacitive High Voltage Sensing - A circuit and a method for sensing a current flowing through a pass device of a voltage converter. The pass device is switchable between a conducting state and a non-conducting state. The circuit contains an output node for providing an indication of the current flowing through the pass device, a capacitive element, connected between the pass device and the output node. A first switching element is connected between the first terminal of the capacitive element and ground. A second switching element is connected between the second terminal of the capacitive element and ground. A control circuit controls the first and second switching elements to isolate the output node from the terminal of the pass device through the capacitive element while the pass device is in the non-conducting state. | 2017-06-22 |
20170179827 | POWER SUPPLY DEVICE - A power supply device includes a power supply module, a voltage regulator module and an over-voltage protection (OVP) module. The power supply module is utilized to provide a standby voltage signal. The voltage regulator module includes a phase modulator circuit. The phase modulator circuit includes a high-side power transistor, a low-side power transistor and a phase inductor. The OVP module is utilized to transmit the standby voltage signal to the phase modulator circuit and detect a detection potential on the phase modulator circuit. The OVP module selectively conducts the low-side power transistor of the phase modulator circuit according to the detection potential. | 2017-06-22 |
20170179828 | Multiphase Regulator with Phase Current Testing - According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, test the output phases in a predetermined sequence, and determine if the phase currents respond in a predetermined way. | 2017-06-22 |
20170179829 | SYSTEMS AND METHODS FOR CONTROLLING AND IMPROVING POWER CONVERTERS - An electronic device includes a controller configured to regulate one or more voltages or currents of a power converter. The controller is configured to receive an input voltage of the power converter, determine whether the power converter is operating in a first mode of operation or a second mode of operation based at least in part on the input voltage, generate a multiplier reference signal for the power converter based on whether the power converter is operating in the first mode of operation or the second mode of operation, and adjust an input current of the power converter based at least in part on the multiplier reference signal. Adjusting the input current includes correcting the input current to be substantially identical in form to the input voltage. | 2017-06-22 |
20170179830 | Multiphase Regulator with Current Pattern Matching - According to an embodiment, a multiphase regulator includes a plurality of output phases each of which is operable to deliver a phase current through a separate inductor to a load connected to the output phases via the inductors and an output capacitor. A controller is operable to regulate a voltage delivered to the load by adjusting the phase currents delivered to the load by the output phases, monitor the phase currents delivered to the load by the output phases, determine if the monitored phase currents indicate any of the individual output phases, any of the individual inductors or the output capacitor are faulty even if the total current delivered to the load is within specified limits, synchronously switch the output phases which cause ripples in the phase currents, and detect if any of the phase currents fail to have a ripple current pattern that matches an expected ripple current pattern. | 2017-06-22 |
20170179831 | ZERO VOLTAGE SWITCHING FLYBACK CONVERTER - A zero voltage switching method for a flyback converter featuring a transformer with first and second primary windings and corresponding turns ratios, N1 and N2, includes rectifying and filtering an AC signal to produce a primary DC voltage. A voltage level signal indicating whether the primary DC voltage falls within a particular voltage range is generated. The voltage level signal is used to select a particular primary winding from either the first primary winding or the second primary winding. A PWM controller corresponding to the particular primary winding is activated and an output of the particular PWM controller performs zero voltage switching of a gate terminal of the applicable main switching transistor. A duty cycle of the main switching transistor is maintained within a range of approximately 50% to approximately 60% in accordance with the turns ratio and the primary DC voltage to achieve a desired output voltage. | 2017-06-22 |
20170179832 | POWER CONVERTER FOR A SWITCHING POWER SUPPLY AND MANNER OF OPERATION THEREOF - A switching power supply comprises a power converter that includes a transformer, a low side switch and a high side switch. The low side switch draws current from a supply voltage through a primary winding of the transformer. The high side switch discharges current from the primary winding of the transformer to a snubber capacitor. The controller synchronously controls the opening and closing of the low side switch and the high side switch. The power converter can be included in a flyback converter. The power converter can generate a regulated output voltage. | 2017-06-22 |
20170179833 | POWER CONTROL MODULE FOR AN ELECTRONIC CONVERTER, RELATED INTEGRATED CIRCUIT, ELECTRONIC CONVERTER AND METHOD - A power control module for an electronic converter is disclosed. The electronic converter includes a power stage comprising two input terminals for receiving a first power signal and two output terminals for providing a second power signal. The electronic converter includes, moreover, a control circuit configured to control operation of the power stage as a function of a feedback control signal. In particular, the power control module includes a pre-elaboration module configured to generate a reference signal as a function of the feedback control signal and a first signal being representative of a voltage applied to the two input terminals. An error amplifier is configured to generate a modified control signal as a function the reference signal and a second signal being representative of a current flowing through the two input terminals. | 2017-06-22 |
20170179834 | POWER CONVERTER AND SWITCH CONTROL MODULE THEREIN - A power converter includes: a transformer having a primary side winding to receive a rectified voltage, and a secondary side winding to generate an output DC voltage; a gallium nitride (GaN) M0SFET, coupled to the primary side winding for controlling a primary side current flowing through the primary side winding; a sensing resistor coupled to the GaN transistor switch, for sensing the primary side current to generate a current sensing signal; and a switch control unit, for controlling the GaN transistor switch according to the current sensing signal. The sensing resistor and the GaN transistor switch are connected at a ground node having a voltage level which is the ground of the primary side. | 2017-06-22 |
20170179835 | CLOCKED POWER SUPPLY WITH LOW-VOLTAGE OUTPUT - A clocked power supply unit with low-voltage output for direct current includes at least one secondary winding of a transformer, a rectifier connected to the secondary winding, two outputs upon which a predefined output voltage is able to be tapped, and a shunt which is configured to provide a voltage signal which is proportional to the output current, wherein electrical measurement contact points are provided at which either a measurement voltage proportional to the output current and diverted from the shunt, or a measurement current diverted from the shunt, may be tapped from outside the power supply unit via the test points of a voltage and/or current measuring device. | 2017-06-22 |
20170179836 | POWER CONVERSION DEVICE - This power conversion device includes a rectification circuit, a reactor, an inverter circuit, and an isolation transformer. The inverter circuit is composed of a first leg A, a second leg B, and a DC capacitor connected in parallel between DC buses. A first AC end of the first leg A is connected to a positive DC terminal of the rectification circuit via the reactor. High power factor control of current iac flowing from an AC power supply via the rectification circuit is performed by PWM control for the first leg A, and voltage Vdc of the DC capacitor is controlled by PWM control for the second leg B using a duty cycle equal to or smaller than that for the first leg A, thereby controlling power outputted to the secondary side of the isolation transformer. | 2017-06-22 |
20170179837 | ELECTRONIC SWITCH - An electronic switch for switching a load, having a current path which runs between an operating voltage connection and a load connection and to which a power transistor and a current sensor sensing the load current are connected, and having a control or regulating device which controls the power transistor on the basis of the load current, wherein the control or regulating device is connected to the secondary circuit of a converter circuit having a transformer, the primary circuit of which is connected to the operating voltage connection via a controlled switch arrangement. | 2017-06-22 |
20170179838 | SWITCHING POWER SUPPLY APPARATUS - A switching power supply apparatus is configured of, as a primary-side circuit, a synchronous rectification step-up/down chopper circuit including a main switching element ( | 2017-06-22 |
20170179839 | POWER CIRCUIT, IRON CORE FOR SCOTT CONNECTED TRANSFORMER, SCOTT CONNECTED TRANSFORMER, AND SUPERHEATED STEAM GENERATOR - The present invention allows individual control of an output voltage of a main transformer and an output voltage of a teaser transformer while utilizing output characteristics of the respective transformer when a Scott connected transformer has control equipment arranged on the input side thereof, including first control equipment arranged in one of two phases of the main transformer on the input side in order to control a voltage or a current and second control equipment arranged in one end of a primary coil of the teaser transformer on the input side in order to control a voltage or a current, the control equipment controlling an output voltage of the main transformer and an output voltage of the teaser transformer individually. | 2017-06-22 |
20170179840 | POWER CIRCUIT, IRON CORE FOR SCOTT CONNECTED TRANSFORMER, SCOTT CONNECTED TRANSFORMER, AND SUPERHEATED STEAM GENERATOR - The present invention allows individual control of an output voltage of a main transformer and an output voltage of a teaser transformer while utilizing output characteristics of the respective transformer when a Scott connected transformer has control equipment arranged on the input side thereof, including first control equipment arranged in one of two phases of the main transformer on the input side in order to control a voltage or a current and second control equipment arranged in one end of a primary coil of the teaser transformer on the input side in order to control a voltage or a current, the control equipment controlling an output voltage of the main transformer and an output voltage of the teaser transformer individually. | 2017-06-22 |
20170179841 | High Frequency Power Supply System with Closely Regulated Output for Heating a Workpiece - A high frequency power supply system provides highly regulated power and frequency to a workpiece load where the highly regulated power and frequency can be independent of the workpiece load characteristics by inverter switching control and an inverter output impedance adjusting and frequency control network that can include precision variable reactors with a geometrically-shaped moveable insert core section and a stationary split-bus section with a complementary geometrically-shaped split bus section and split electric terminal bus section where the insert core section can be moved relative to the stationary split-bus section to vary the inductance of the variable reactors. | 2017-06-22 |
20170179842 | VEHICLE AUXILIARY POWER SUPPLY DEVICE - A vehicle auxiliary power supply device mounted in an electric rolling stock and that includes a converter device to convert DC power supplied from a DC power supply into desired DC power, and a three-phase inverter to convert the DC power supplied from the converter device into three-phase AC power and to supply the converted power to a load, wherein a switching element of the three-phase inverter is constituted by a semiconductor module formed of a wide bandgap semiconductor. | 2017-06-22 |
20170179843 | CONVERTER DEVICE - A converter device includes: a converter circuit unit converting alternating-current voltages from a Δ connection and a Y connection of a twelve-phase rectification transformer, into a direct-current voltage; a current detection unit detecting a current of a direct-current bus connected to the converter circuit unit; an open-phase detection unit connected to a side of the Δ or Y connection to detect whether open phase is caused in the connection connected thereto; and an output unit outputting, when detected that there is open phase caused in the Δ or Y connection based on a detection signal of the open-phase detection unit and a current value of the direct-current bus detected by the current detection unit, an indication that open phase is caused in the Δ or Y connection. When open phase is caused, it is possible to output an indication of whether the open phase is caused on the Δ or Y connection side. | 2017-06-22 |
20170179844 | Electronic Power Converter and Computer Program - Multi-phase electronic power converter ( | 2017-06-22 |
20170179845 | CONTROL DEVICE OF A SWITCHING POWER SUPPLY - A control device controls a switching converter having an input alternating supply voltage and a regulated direct voltage at the output terminal. The converter comprises a switch and the control device is adapted to control the on time period and the off time period of said switch for each cycle. The control device has a first input signal representative of the current flowing through at least one element of the converter and comprises a zero crossing detector adapted to detect at least one pair of first and second zero crossings of said first signal for each switching cycle, said second zero crossing immediately following the first zero crossing and occurring in opposite direction with respect to the first zero crossing. The control device comprises a synchronizer adapted to synchronize the start of the on period with each second zero crossing of said first signal. | 2017-06-22 |
20170179846 | SELF-DRIVEN AC-DC SYNCHRONOUS RECTIFIER FOR POWER APPLICATIONS - Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least a first pair of switches of a first conducting path and a second pair of switches of a second conducting path that can form or emulate a diode bridge. To facilitate emulating turn-on and turn-off conditions of a diode, a switch can be turned on when voltage across the switch is forward-biased and turned off when switch current is reversed; also, there can be at least one current-controlled switch in each conducting path. Self-driven gate-drive circuitry employs low power components that can facilitate controlling respective switching of the at least first pair and second pair of switches, wherein switching of the switches is also controlled at start-up to emulate a diode bridge. | 2017-06-22 |
20170179847 | ELECTRICAL SYSTEMS AND METHODS FOR ISLANDING TRANSITIONS - Electrical systems and related operating methods are provided. One exemplary electrical system includes a sensing arrangement coupled to an electrical grid interface to measure an electrical characteristic of the electrical grid interface, a power conversion module having an output coupled to the electrical grid interface, and a control module coupled to the sensing arrangement and the power conversion module. The control module determines a reference value for the electrical characteristic, identifies an islanding condition based on a difference between a value for the electrical characteristic and the reference value, determines a target output value for the power conversion module based on the difference, and in response to the islanding condition, operates the power conversion module to provide the target output value for the electrical characteristic at the output. The target output value reduces the difference while a connection arrangement is being opened to achieve islanding. | 2017-06-22 |
20170179848 | CMOS INVERTER CIRCUIT - An inverter circuit includes: a first P-channel MISFET having a source connected to a positive-side terminal and a drain connected to an output terminal; a first N-channel MISFET having a source connected to a negative-side terminal and a drain connected to the output terminal; a first delay element connected between a gate of the first P-channel MISFET and an input terminal to which an input signal is supplied; first switch element connected in parallel with the first delay element between the input terminal and the gate of the first P-channel MISFET; a second delay element connected between the input terminal and a gate of the first N-channel MISFET; and a second switch element connected in parallel with the second delay circuit between the input terminal and the gate of the first N-channel MISFET. The first and second switch elements operate in response to a potential on the output terminal. | 2017-06-22 |
20170179849 | POWER CONVERSION SYSTEM, POWER MODULE, AND SEMICONDUCTOR DEVICE - A power conversion system has a first coupling circuit including a wire between a controller and a high-side circuit and a second coupling circuit including a wire between the controller and a low-side circuit. The first coupling circuit has a diode having an anode coupled to a wire from the controller and a cathode coupled to a wire from the high-side circuit. | 2017-06-22 |
20170179850 | AN ELECTROMECHANICAL TRANSDUCER - An electromechanical transducer, including: one or more first mechanical resonator structures having respective first fundamental oscillation resonance frequencies; and a second mechanical resonator structure including one or more electromechanical transducer components, and having a second fundamental oscillation resonance frequency that is substantially greater than the first fundamental resonance frequencies of the first mechanical resonator structures; wherein oscillations of the first mechanical resonator structures driven by external mechanical vibrations cause the first mechanical resonator structures to intermittently couple with the second resonating structure to drive oscillations of the second resonating structure such that the electromechanical transducer components of the second mechanical resonator structure convert the oscillations of the second resonating structure to electrical energy or signals. | 2017-06-22 |
20170179851 | STATOR AND A MOTOR - The invention relates to a stator for an electro-mechanical wave motor and an electro-mechanical wave motor including such stator. The stator includes a plurality of actuators positioned along a closed travelling path on at least a first side of the substrate. The plurality of actuators is configured to generate a travelling wave along the closed travelling path. The substrate has an outer periphery structure and an inner periphery structure and a plurality of rigid outer bridge structures and at least one rigid inner bridge structure. Each of the rigid outer bridge structures extends from the outer periphery structure and outwards and is connected to or adapted to be connected to an outer stabilization member and the at least one rigid inner bridge structure extends from the inner periphery structure and inwards and is connected to or is adapted to be connected to an inner stabilization member. | 2017-06-22 |
20170179852 | PIEZOELECTRIC DEVICE FOR GENERATING ELECTRICAL VOLTAGE - An electrical voltage-generating piezoelectric device comprising at least a first blade ( | 2017-06-22 |
20170179853 | ENERGY HARVESTING DEVICE USING ELECTROACTIVE POLYMER NANOCOMPOSITES - An energy harvesting device includes: a first nanoporous electrode and a second nanoporous electrode, each of which is configured to which store electrical charge; a first current collector connected to the first nanoporous electrode and a second current collector connected to the second nanoporous electrode; and an enclosure that contains the first and second nanoporous electrodes and the first and second current collectors and transfers a force applied from the outside to the first nanoporous electrode and the second nanoporous electrode, wherein at least one of the first nanoporous electrode and the second nanoporous electrode comprises an ion conductive polymer. | 2017-06-22 |
20170179854 | MOTOR ON-DELAY TIMER - A load starting system in which an upstream controller determines the sequence and timing for starting a group of loads in the most efficient and timely manner. The sequence and timing is determined by one or more real-time operational characteristics, device rating characteristics, customer/user characteristics or learned/historic characteristics or by a combination of the one or more real-time, device rating, customer/user or learned/historic characteristic. | 2017-06-22 |
20170179855 | POWER SYSTEM AND MOTOR DRIVING APPARATUS INCLUDED IN POWER SYSTEM - A power system may include a first motor, a second motor connected in parallel to the first motor, a driver configured to supply a driving current to the first motor and the second motor and a controller configured to control the driver based on the driving current and a rotating speed of the first motor, and when the rotating speed of the first motor is different from a rotating speed of the second motor, the controller may control the driver so that the rotating speed of the first motor is equal to the rotating speed of the second motor. The power system may drive two and more motors at the same speed by applying the driving voltage based on the rotating speed and the driving current of one of two or more motors, using a single driving apparatus. | 2017-06-22 |
20170179856 | METHOD AND SYSTEM FOR ENHANCED ACCURACY OF CHEMICAL INJECTION PUMPS - A method and system for maintaining consistent output for a pump powered by an electric motor, is provided, including: sending electrical measurements regarding power applied to the motor to a controller; determining if the electrical measurements indicate a power variation; changing the parameters of output from the motor to compensate for the variation. The system uses a controller configured to receive electrical measurements regarding power input to the motor, to determine if the electrical measurements indicate a power variation; and to change the parameters of output from the motor to compensate for the variation. | 2017-06-22 |
20170179857 | SYSTEMS AND METHODS FOR MOTOR TORQUE COMPENSATION - A method for torque compensation of a motor associated with a medical instrument includes determining a torque profile for a motor, the torque profile defining torque output as a function of rotor angle and during operation of the motor, compensating for deviations in the torque profile by adjusting an input signal to the motor, the compensating being based on the torque profile and rotor position. | 2017-06-22 |
20170179858 | METHOD FOR SUPPLYING POWER TO AN ELECTRIC MOTOR, ASSOCIATED COMPUTER PROGRAM, INVERTER CONTROL DEVICE AND ELECTRICAL ROTATING MACHINE - The invention relates to a method comprising the switched connection of the phases to a voltage source in such a way as to turn the current vector defined by the phase currents (i | 2017-06-22 |
20170179859 | MAGNET DEGRADATION AND DAMAGE CONTROLS AND DIAGNOSTICS FOR PERMANENT MAGNET MOTORS - Techniques for motor magnet degradation controls and diagnostics are disclosed. An exemplary technique determines q-axis current, d-axis current, q-axis voltage, and/or d-axis voltage of a permanent magnet motor based upon sensed current and voltage information of the motor. This information is utilized to determine flux information. The flux information is utilized in evaluating collective state conditions of a plurality of motor magnets and evaluating localized state conditions of a subset of the plurality of motor magnets. The evaluations can be used to identify degradation or damage to one or more of the magnets which may occur as a result of elevated temperature conditions, physical degradation, or chemical degradation. | 2017-06-22 |
20170179860 | SYSTEM AND METHOD FOR CONTROLLING MOTOR STABILITY - A system and a method for controlling a motor are disclosed. In the present invention, the period information and the operation cycle are detected by a sensing module for calculating the variations of the rotating speed of the rotor. The duty cycle of the PWM signal corresponding to each timing segment is determined according to the predetermined power. By using the PWM signal to drive the motor, the waveform of the output current is rather smooth and close to a sinusoidal waveform, and noises of the motor are reduced effectively. | 2017-06-22 |
20170179861 | SYSTEM AND METHOD FOR IMPROVING ACCELERATION PERFORMANCE OF AN ELECTRIC VEHICLE - Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inverter may include at least one power electronic device. The system may also include a torque capability controller. The torque capability controller may be configured to receive information indicative of a selection between a first mode and a second mode. The second mode may correspond to a higher torque to be output by the electric motor than the first mode. The torque capability controller may also be configured to apply a switching frequency to the at least one power electronic device. The switching frequency may have a lower value when the received information indicates the selection of the second mode than when the received information indicates the selection of the first mode. | 2017-06-22 |
20170179862 | MOTOR CONTROL DEVICE - A terminal voltage detection circuit of a motor control device detects first detection values of a first terminal of a DC motor and second detection values of a second terminal of the DC motor. An inter-terminal voltage calculation unit calculates inter-terminal voltage calculation values from the first detection values and the second detection values. The inter-terminal voltage calculation unit outputs one of the calculation values having the smallest absolute value as an inter-terminal voltage selection value. A steering angle speed estimation unit estimates a steering angle speed based on the selection value and a motor current. A compensation control unit executes a compensation control based on the steering angle speed estimated by the steering angle speed estimation unit. Accordingly, robustness of the compensation control is improved and excess assist is restricted. | 2017-06-22 |
20170179863 | ARRANGEMENT AND METHOD FOR MONITORING A PSM-MACHINE - A method is provided for monitoring a PSM machine having at least, or exactly, three phases, which are operated by means of a field oriented control, comprising the following steps: detection of whether one or more current sensors disposed on a phase of the PSM machine has malfunctioned, when a malfunction of current sensors has been detected, such that only one of the current sensors remains functional, calculation of the voltage indicator from the voltage amplitudes and voltage phases of the input voltage of the PSM machine in a d, q-coordinate system by means of two different methods, wherein a first calculation of the input voltage occurs in the first method, based on a phase current measured by a functioning current sensor, and the target currents, as well as the electrical angle of the machine, and in the second method, a second calculation of the input voltage occurs, based on target values of the reference voltage amplitude and the reference voltage phase, and determination of the voltage amplitudes and voltage phases of the input voltage of the PSM machine through comparison of the values of the respective voltage amplitudes and voltage phases determined from the input voltage in the first and second methods with one another. Furthermore, a corresponding assembly is provided. | 2017-06-22 |
20170179864 | FIELD WINDING SYNCHRONOUS MACHINE DRIVE SYSTEM - A field winding synchronous machine drive system includes a field winding synchronous machine having a stator and a rotor and a drive apparatus configured to drive the field winding synchronous machine. The stator has N m-phase stator coils wound on a stator core to create a rotating magnetic field, where N is an integer not less than 2 and m is an integer not less than 3. The rotor has at least one main field winding wound on a rotor core to create field magnetic flux. The drive apparatus includes N inverters each of which supplies m-phase alternating current to a corresponding one of the N m-phase stator coils. Specifically, each of the inverters supplies the corresponding m-phase stator coil with the m-phase alternating current which includes a fundamental-wave current and a time-harmonic current superimposed on the fundamental-wave current; the time-harmonic current has a shorter period than the fundamental-wave current. | 2017-06-22 |
20170179865 | OPTIMUM CURRENT DRIVE FOR ACTUATOR CONTROL - A method for operating an electromagnetic actuator includes an actuation event utilizing a current waveform for the actuator characterized by an initial peak pull-in current in a first direction of current flow when the actuator is commanded to an actuated position; and a reversed peak current in a second opposite direction of current flow applied after the actuator is commanded to a rest position. The reversed peak current has a magnitude that is greater than the magnitude of the initial peak pull-in current. | 2017-06-22 |