Abstract: A digital controller controls contingency discharges of a utility from a reservoir to a plant during a first time period and compensatory charges from the plant back to the reservoir during a second time period. The utility can be electric power. The plant and reservoir are connected by a grid. The reservoir may be any electric power storage device. When the utility is electric power, the contingency discharges make up for the power not generated by the plant due to an accident. The compensatory charges replenish the reservoir. The digital controller may use a sectionally linear transfer function with a maximum to control the compensatory charges based on the contingency discharges. The transfer function may be balanced using a trim function so that on average, the compensatory charges will make up for the contingency discharges.

Abstract: A driver for a lighting device includes: a lighting driver configured to drive LED(s) of the lighting device in a first mode of operation when a primary power source is available and provided to the lighting driver and to control power output and/or final output current utilizing a backup or other secondary power source during an emergency mode of operation. In example embodiments and implementations, the lighting driver includes a single instance of a LED driver (e.g., only one LED driver circuit) configured to drive LED(s) of the lighting device during both modes of operation.

Abstract: For efficient redundancy power supplying, a voltage drop device, a power selection device, a voltage detection device and a switch are provided in a power control circuit of a redundancy power supply system. The voltage drop device performs a voltage drop operation to convert a redundancy operating voltage into a standby voltage. The power selection device receives the main operating voltage and the standby voltage, and selectively outputting one of the main operating voltage and the standby voltage, which is of a higher level. The voltage detection device outputs a control signal according to a comparison result of the main operating voltage and a threshold. The switch is selectively conducted or interrupted according to the control signal. A voltage drop of power passing through the conducted switch is less than a voltage drop of power passing through the voltage drop device.

Abstract: A method for monitoring an uninterruptible power supply system described herein includes receiving, at a server, data associated with a first UPS group having a first redundancy level; receiving, at the server, data associated with a second UPS group having a second redundancy level; monitoring the uninterruptible power supply system based on the first redundancy level and the second redundancy level; and based on the monitoring, providing control signals to a first device associated with the first UPS group and a second device associated with the second UPS group.

Abstract: A power supply system includes at least one power supply module and at least one redundant power supply module. A power supply module may include a charging resistor in parallel with an OR-ing device to keep all filter capacitors charged as long as at least one power supply module remains operational. This may avoid current spikes at turn on and may enable the redundant module to turn on without using soft start.

Abstract: A control device controls an uninterruptible power supply device such that a transition is made to an inverter power supply mode when a power source abnormality detecting unit detects a power failure of an AC power source in a case where a commercial power supply mode is selected. The power source abnormality detecting unit computes an estimated value of the maximum value of AC input voltage, based on detected values of the instantaneous value and the phase of AC input voltage supplied to an input terminal. The power source abnormality detecting unit is configured to store temporal transition of the maximum value when the AC power source undergoes a simulated power failure and determine a power failure of the AC power source, based on comparison between temporal transition of the estimated value of the maximum value and the stored temporal transition of the maximum value during power failure.

Abstract: A sensor for position determination of a drive system comprising: a magnetic sensor adapted to determine the rotational position of a magnet linked to the drive system; at least one Hall sensor to determine rotational movement and direction of rotation of the magnet; a microcontroller unit for evaluating data of the magnetic sensor and of the Hall sensor; and a rechargeable battery connected to a power supply of the sensor and that represents an alternative power supply, wherein, on a failure of the power supply, the sensor is adapted only to supply the Hall sensor and the microcontroller unit with energy from the rechargeable battery when the Hall sensor does not detect any rotational movement of the magnet and to supply at least one further component of the sensor with energy from the rechargeable battery when the Hall sensor detects a rotational movement of the magnet.

Abstract: Methods, apparatus, systems and articles of manufacture to wirelessly power an unmanned aerial vehicle are disclosed. An example unmanned aerial vehicle (UAV) includes a first electrode assembly to capacitively couple to a first power cable. The example UAV includes a second electrode assembly to capacitively couple to a second power cable. The first and second electrode assemblies, when capacitively coupled to the respective first and second power cables, are to receive power from at least one of the first and second power cables. The example UAV includes a power storage circuit to store the received power.

Abstract: A control device for a power receiving device that receives power supplied from a power transmitting device by contactless power transmission, including a charger that charges a battery based on the received power, a discharger that performs discharging operation of the battery and power supply operation in which power from the battery is supplied to a power supply target, and a controller that controls the discharger, and the controller stops the power supply operation when a magnetic detection signal from a magnetic detection element becomes active.

Abstract: An apparatus for receiving wireless power is provided. The apparatus a communication circuit configured to transmit a first indication of a first wireless charging category associated with the apparatus. The communication circuit is further configured to receive an indication of a wireless charging class of a power transmit unit (PTU). The communication circuit is further configured to transmit a second indication of a second wireless charging category associated with the apparatus based on the wireless charging class of the PTU being compatible with a higher wireless charging category than the first wireless charging category. The apparatus further comprises a coupler configured to receive a level of wireless power corresponding to the second wireless charging category. The higher wireless charging category indicates an ability to receive a greater amount of wireless power than the first wireless charging category.

Abstract: Systems and methods described herein may relate to wireless energy transfer between a transmitter and a receiver via resonant coupling. In example embodiments, a method includes identifying a receiver in a wireless power transmission system and identifying a transmitter in the wireless power transmission system. The method also includes determining a real-time per-unit offer corresponding to the identified receiver and determining a real-time per-unit request corresponding to the identified transmitter. The method yet further includes determining a real-time per-unit match based on the offer and the request. The method further includes, in response to determining the match, causing the transmitter to provide electrical energy to the receiver via a wireless resonant coupling link.

Abstract: A wireless power transmitter includes: a converter including switching elements forming a bridge circuit and configured to output an alternating current (AC) voltage in response to control signals; a resonator including a resonant capacitor and a resonant coil, and configured to receive the AC voltage to transmit power wirelessly; and a controller configured to set a dead time at which a magnitude of the AC voltage is substantially zero in response to a signal received from a wireless power receiver.

Abstract: A wireless power supply system includes a power transmitter having a power-transmitting coil to which AC power of a frequency is input from a power source; and a power receiver having a power-receiving coil magnetically coupled to the power-transmitting coil at a coupling coefficient, and a first power-receiving-side series element coupled in series to the power-receiving coil and having imaginary impedance, in which the frequency, the coupling coefficient and the imaginary impedance are determined on the basis of satisfying a predetermined relationship.

Abstract: A control apparatus is used in a power transmission system for transmitting power with a magnetic resonance manner to a power reception apparatus from a power transmission apparatus. The control apparatus comprises a power control unit configured to control a power transmission state in which transmission power of the power transmission apparatus is controlled in a state in which a power transmission target power reception apparatus is detected, and a test power transmission state in which transmission power of the power transmission apparatus is controlled in a state in which the power transmission target power reception apparatus is not detected.

Abstract: A wireless power receiver (PRU) and a method for generating a load of the PRU for detecting the PRU in a wireless charging system are provided. The method includes receiving a wireless power signal from a wireless power transmitter (PTU), rectifying the received wireless power signal into a direct current (DC) signal, and generating a load for detecting the PRU by controlling a current flowing across a resistor connected in parallel with a load charged with power of the DC signal.

Abstract: Various embodiments of the present technology relate generally to wireless power systems. More specifically, some embodiments relate to the use of time reversal techniques utilizing time diversity (e.g., different multipath arrivals at the same antenna) to achieve coherency from the same transmission node. For example, instead of initiating outgoing transmissions (e.g., power signals) at the same time, various embodiments can initiate the outgoing signals from the various antennas in a staggered timing that is a reversal of the arrival times of an incoming signal. As a result of staggering the start of the outgoing signals, the signals will arrive at the destination at approximately the same time even though they have traveled different paths having different propagation delays.

Abstract: A headpiece included within a cochlear implant system includes a housing, an interface assembly disposed within the housing and communicatively coupled to a sound processor, and electronic circuitry disposed within the housing. The interface assembly receives, from the sound processor, direct current (DC) power and a self-clocking differential signal comprising a data signal encoded with a clock signal at a clock frequency. The electronic circuitry is configured to recover the data signal and the clock signal from the self-clocking differential signal, to generate synthesized clock signals at first and second carrier frequencies based on the recovered clock signal, to wirelessly transmit alternating current (AC) power at the first carrier frequency based on the DC power, and to wirelessly transmit a data-modulated AC signal at the second carrier frequency based on the recovered data signal. The AC power and data are transcutaneously transmitted to a cochlear implant implanted within a patient.

Abstract: A mobile charging device may be used to move a battery or a power cord to a target device. The target device may be a vehicle or other equipment with a battery. Power from the power cord or battery in the charging device may be used to provide power to the target device to recharge the battery in the target device. The charging device may couple a power cord to the target device, may couple a connector in the charging device to the target device, or may use a wireless power transfer element such as a coil antenna to transfer power wirelessly to the target device. Sensors may be used to facilitate alignment between the charging device and target device. Sensors may also be used to dynamically detect and avoid foreign objects in the path of the charging device.

Abstract: A stator core of a rotating electric machine, includes a base, teeth, slots, and cutouts. The base includes a through-hole having a substantially cylindrical shape surrounded by an inner circumferential wall around a center axis of the substantially cylindrical shape. Teeth are arranged around the center axis and extending along a radial direction of the substantially cylindrical shape from the inner circumferential wall toward the center axis. Each of the teeth has a first end surface and a second end surface opposite to the first end surface in the center axis. Each of the slots is defined between a tooth and another tooth adjacent to the tooth among the teeth such that a coil is to be provided into each of the slots. Each of the cutouts is provided in the first end surface to face an inner surface of a bent portion of the coil.

Abstract: A stator seat of a motor includes a pillow, a connector, a waterproof element and cables. A sleeve is extended from the pillow. A cap covers the pillow and sleeve. A control chamber is formed and enclosed by the cap and pillow. The pillow has a through hole communicated with the control chamber. The connector corresponsive to the through hole is installed in the control chamber and includes a first connecting structure. The waterproof element covers the through hole and includes an annular groove and an O-ring clamped between the waterproof element and pillow, and a second connecting structure. The first and second connecting structures are passed through the through hole. An insertion hole is penetrated through the waterproof element. Each of the cables has an end connected to the connector and the other end passed out from the pillow through the insertion hole and through hole.

Abstract: A multiple-polyphase AC dynamo-electric machine, wherein each of the plurality of the teeth provides the flange part to the NS magnetic pole part of the rotor side end part, the stator core has a magnetic connection part which connects the flange parts adjoined each other in the NS magnetic pole of each of the plurality of teeth, the connection part is provided corresponding to each of the slot and an inner peripheral side of the corresponding slot, the radial width of the connection part are smaller than both of the circumferential width of the teeth, thereby the radial widths of the connecting sections are smaller than both the circumferential widths of the teeth and the radial widths of the flanges, voltages generated when the magnetic flux generated by current flowing through one group of windings links with the windings in another group are suppressed effectively.

Abstract: A switched reluctance motor include: a stator; a case in which the stator is accommodated; a rotor disposed inward of the stator in the radial direction of the switched reluctance motor; and a holding member fixed to the case. The holding member is configured to hold the stator with the stator spaced apart from an inner peripheral surface of the case. The holding member includes a holding portion and a fixed portion. The holding portion is configured to hold the stator from the outside in the radial direction. The holding portion is spaced apart from the inner peripheral surface of the case. The fixed portion is fixed to the case.

Abstract: Embodiments of a modular motor assembly are disclosed. In some embodiments, a motor comprises a plurality of modular magnetic units, where each of the modular magnetic units includes at least one rotor and at least one stator. The motor further comprises a plurality of structural segments each adapted to support a stator of a corresponding one of the modular magnetic units, where each of the structural segments interlocks with a next structural segment to form a stack. A method of manufacturing a motor includes arranging a selected number of modular magnetic units, coupling the selected number of modular magnetic units to a shaft, coupling the selected number of modular magnetic units to respective structural segments, and forming electrical connections to apply three-phase voltage to stator windings of the modular magnetic units.

Abstract: A rotor structure of synchronous reluctance motor which includes at least one rotor sheet is provided in the present invention. The rotor sheet has a center hole and includes a plurality of reluctance units surrounded the center hole. The reluctance units have an inner through-hole pair and an outer through-hole pair. In an inner through hole of the inner through-hole pair and an outer through hole of the outer through-hole pair, an inner tangent extension and an outer tangent extension are extended along a tangent extension direction. Two oblique extensions are extended from the inner tangent extension and the outer tangent extension along a turning direction which is oblique to the tangent extension direction respectively. An oblique included angle of the outer through hole is smaller than an oblique included angle of the inner through hole.

Abstract: A synchronous reluctance motor includes a stator and a rotor. The rotor is configured to rotate relative to the stator about a rotational axis. The rotor is spaced apart from the stator to define an air gap between the stator and the rotor and includes a rotor core defines an outermost rotor surface and an innermost rotor surface opposite the innermost rotor surface. The rotor core includes a plurality of ribs separating rotor cavities from each other and includes a plurality of rotor bridges separating the air gap and the rotor cavities. Permanent magnets are each disposed in one of the rotor cavities. The magnet surface area of the permanent magnets is less than cavity surface area of the rotor cavities. Each of the permanent magnets is adjacent to the outermost rotor surface to maximize magnetic saturation at the ribs and the rotor bridges.

Abstract: This motor includes a stationary portion including a stator; and a rotating portion supported to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion, and including a shaft arranged to extend along the central axis. The stationary portion includes a bearing arranged to rotatably support the shaft, and a base portion arranged to hold the stator. The rotating portion includes a rotor hub portion arranged to extend in an annular shape around the shaft; a magnet directly or indirectly fixed to the rotor hub portion, and arranged opposite to the stator; a flywheel arranged axially above the rotor hub portion; and a seal portion arranged to have a thickness smaller than the thickness of the magnet. At least a portion of an outer circumferential surface of the rotor hub portion is a metal surface.

Abstract: To obtain a rotary electric machine in which an insulation failure does not occur even when the output of the rotary electric machine is increased by improving the cooling performance at the rotor winding ends. The rotary electric machine includes a rotor winding wound around a rotor core with a gap, rotor winding ends formed by the rotor winding protruding to an end surface of the rotor core in an axial direction, spacers arranged between adjacent rotor winding ends, mountain-shaped winding support portions provided on both surfaces of the spacers and having an apex with an obtuse angle, meandering ventilation paths formed on both surfaces of the spacers by the mountain-shaped winding support portions and wave-shaped winding support portions formed in the meandering ventilation paths along the meandering ventilation paths.

Abstract: A brushless motor includes: a stator including an annular stator core and first through twelfth teeth provided circumferentially on an inner circumference of the stator core in a sequential order; first through twelfth coils wound around the first through twelfth teeth, respectively, and forming a delta connection; and a rotor provided at a center of the stator. The first through twelfth coils are configured such that: the twelfth, first, six, and seventh coils in series connection form a W-phase; the eighth, ninth, second, and third coils in series connection form a U-phase, the fourth, fifth, tenth, and eleventh coils in series connection form a V-phase, coils of different phases adjacent to each other in an arrangement on the teeth are wound in the same direction, and coils of the same phase adjacent to each other are wound in opposite directions.

Abstract: Methods and system for creating spacing between insulated stator coils include a spacing device with an expandable container. The expandable container is positioned and expanded between stator coil end portions in order to create a space between the insulated stator coil end portions. Insulating elements are placed in the space created between the stator coil end portions, and the expandable container removed.

Abstract: A thermal insulation structure for an electronic device of the present invention is a thermal insulation structure which thermally insulates between an electronic circuit unit and a heat generator formed with another component. In the thermal insulation structure, a partition wall for separating each space and formed of resin having electric insulation properties is provided between the electronic circuit unit and the heat generator. Also, the partition wall is formed by integrating the resin and a thermal insulation material having thermal conductivity lower than thermal conductivity of air so that the resin includes the thermal insulation material. Further, the partition wall is formed by insert-molding the thermal insulation material with the resin. Further, the resin having the electric insulation properties is thermoplastic resin, and a thermal insulation raw material of the thermal insulation material is silica xerogel.

Abstract: A compressor includes a sealed container, a compression part provided in an upper part of the inside of the sealed container and configured to compress a working medium, an oil reservoir part provided in a bottom part of the inside of the sealed container and configured to reserve a lubricating oil therein, an electric drive part provided between the compression part and the oil reservoir part inside the sealed container and configured to drive the compression part, and a power source terminal provided to pass through a wall surface of the sealed container in a region of the oil reservoir part. The power source terminal is connectable to an external power source outside the sealed container and electrically connected to the electric drive part via a lead wire in the sealed container.

Abstract: An endcap assembly for an electric motor and a stator having same are provided. The endcap assembly includes an endcap, a first wire, and two terminals corresponding to the first wire. The two terminals are fixed to the endcap and configured to connect with corresponding windings of the electric motor. The endcap defines a first accommodating groove extending from one terminal to the other terminal. The first wire is received in the first accommodating groove, and two ends of the first wire are electrically connected to the two terminals, respectively.

Abstract: An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.

Abstract: A hand-held power tool is provided that includes a housing assembly to support a motor. An output spindle protrudes from an output end of the housing assembly such that the output spindle rotates in response to a rotation of the motor. A user interface is located at the housing assembly opposite the output spindle. The user interface is configured to select one of a plurality of modes of operation of the hand-held power tool to regulate power supplied to the motor.

Abstract: Electricity generators are provided that can include: members having opposing bases that include chambers to facilitate the conversion of source energy to mechanical energy with one of the members rotating in relation to another of the members and a housing about the rotating member. Generator components can be operably engaged to the housing and rotating member to generate electricity. Methods for generating electricity are also provided. The methods can include: rotating a first cylindrical member in relation to a fixed second member about a center rod along a shared axis within a housing; and generating electricity between conductive components along both the sidewalls of the first cylindrical member and the housing.

Abstract: A rotary electric machine includes a rotor, a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core, and a cooling mechanism for cooling first and second coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof. The stator is disposed along an inner circumferential surface of at least one of the first and the second coil-end groups of the stator winding, and there is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the first and the second coil-end groups. Thus, it is possible to cool throughout the first and the second coil-end groups efficiently and reliably by the liquid coolant, a sufficient cooling effect can be obtained.

Abstract: A traction motor comprises a stator, a rotor core, an iron core holder, a cooling fan, a rotor, a frame, a bracket, and a bearing unit. The cooling fan includes a main plate that separates the inside and the outside of the totally-enclosed traction motor; blades provided on the bracket side of the cooling fan and along a rotational direction of the rotor; and a guide provided on the bracket side of the blades. In the bracket, inlets are provided within an area obtained when the guide is projected onto the bracket. The guide is formed such that air drawn in through the inlets is guided to a rotor shaft.

Abstract: A cover assembly and a brushed motor are provided. The cover assembly includes a mounting portion and a flow guide portion. The mounting portion defines a first opening through the mounting portion along an axial direction of the motor. The flow guide portion includes a top wall disposed at one end thereof away from the mounting portion along the motor axial direction. The fluid guide portion defines a second opening extending to an inner wall surface of the top wall in the motor axial direction. The first opening and the second opening are in flow communication with each other. The flow guide portion further defines a winding flow passage. The flow passage has an inner inlet in flow communication with the second opening and an outer outlet in flow communication with an outside environment. The present invention facilitates absorption of the motor noise and hence reduction of the output noise.

Abstract: A controller-included rotating electrical machine is provided which includes a rotating electrical machine and a controller. The controller 11 is equipped with a power supply terminal-included bus bar assembly and bus bar assemblies. The power supply terminal-included bus bar assembly has bus bars which are fixedly retained by resin and electrically wire a power modules and also includes a power supply terminal connecting with one of the bus bars. Specifically, the power supply terminal is installed in the power supply terminal-included bus bar assembly along with the bus bars, thereby resulting in decreased number of parts and production steps of the controller-included rotating electrical machine as compared with a conventional structure equipped with a power supply terminal and bus bars which are fabricated as assemblies and a power supply terminal installed in another assembly.

Abstract: A stator is disposed inside a motor case having a cylindrical shape. A winding wire is wound around the stator. A rotor is rotatably disposed inside the stator. A shaft is disposed in a rotational center of the rotor. A first plate covers one side of the motor case. The first plate rotatably supports one end portion of the shaft. A second plate has an insert hole extending in a thickness direction of the second plate. The second plate covers an other side of the motor case and rotatably supports an other end portion of the shaft. A wire extending portion has one end electrically connected to the winding wire. The wire extending portion extends from the winding wire and is inserted into the insert hole. A controller is disposed on a side of the second plate opposite to the motor case. The controller includes a substrate and is electrically connected to an other end of the wire extending portion at a side of the substrate opposite to the second plate to control energization to the winding wire.

Abstract: The method includes a step of aligning and laminating enlarged iron core pieces including iron core pieces and dummy piece parts and forming a composite laminated iron core integrally including a dummy laminated part with the dummy piece parts laminated and a laminated iron core, a step of placing and positioning the composite laminated iron core on a jig and removing the dummy laminated part, and a step of mutually bonding the laminated iron core body with the dummy laminated part removed to form the laminated iron core.

Abstract: A stator assembly method includes a step of inserting coils into slots by pressing coil end portions of the coils from the inner peripheral side toward the radially outer side of a stator core using a pressing member while suppressing fall of the coil end portions by supporting the coil end portions from the radially outer side of the stator core using a fall suppression member.

Abstract: An apparatus and a method for winding turns of coils of pole members (11), in which a pole member (11) comprises at least a flange portion (13b) connected to a body portion (13a) for receiving turns of coils C during winding. The apparatus comprises a conductor dispenser member (50?) for dispensing a conductor W for forming turns of coils C by movement of the conductor dispenser member (50?) with respect to the pole member being wound. The apparatus is also provided with a pole member holder (10) comprising a plurality of seats (15) suitable for receiving a flange portion (13b) of the pole member (11), a plurality of base members (18) of the seats (15) for engaging a first end (13b?) of a pole member (11) with a pushing force and locking means (20) associated with each seat (15) for engaging and referencing a second end (13b?) of the pole members (11) with respect to the conductor dispenser member (50?). The invention also concerns a pole member holder (10) as described in the foregoing.

Abstract: A stator module pack for an axial flux electric machine is provided. The stator module pack includes a housing for attachment to a stator base and a plurality of stator modules attached to the housing. Each stator module includes a core having at least one winding disposed thereon. A plurality of stator module packs is coupled to a stator base to form a stator of the axial flux electric machine.

Abstract: A vibration energy harvester that converts kinetic energy to electrical energy. The vibration energy harvester includes an electrically conductive coil array, a magnetic array and a self-assembled liquid bearing. The magnetic array is levitated above the electrically conductive coil array. The magnetic array and the electrically conductive coil array are configured to generate the electrical energy from a relative movement between the magnetic array and the electrically conductive coil array. The self-assembled liquid bearing separates the magnetic array from the electrically conductive coil array and levitates the magnetic array over the electrically conductive coil array.

Abstract: A wireless power transmission system includes a power transmitting device, power receiving device, and load. The power transmitting device includes an inverter circuit, power transmitting antenna, power transmission control circuit, and transmitting-side receiver. The power receiving device includes a power receiving antenna, rectifying circuit, and receiving-side transmitter. The power transmission control circuit causes the inverter circuit to output preliminary AC power to activate the power receiving device. The receiving-side transmitter transmits, to the power transmitting device, control information of the power receiving device including (i) a coupling coefficient between the power transmitting antenna and the power receiving antenna, (ii) requested voltage of the power receiving device, and (iii) load impedance of the load.

Abstract: In an electric power conversion circuit, a gate controller executes a first operation. In the first operation, the gate controller performs control such that a first lower FET, a first upper FET, a second lower FET, and a second upper FET satisfy the following conditions: a condition that a first state in which the first lower FET is turned on, a second state in which both of the lower FETs are turned off, a third state in which the second lower FET is turned on, and a fourth state in which both of the lower FETs are turned off appear repeatedly in the order; and a condition that the first upper FET is turned on at a middle of a period of the second state and is maintained in an on state until a middle of a period of the third state.

Abstract: The disclosure relates to electrical converters. The teachings thereof may be embodied in a circuit assembly for an electrical converter. For example, a circuit assembly for an electrical converter may include a set of switching units, each switching unit comprising a semiconductor switch and a gate driver circuit for controlling the semiconductor switch. The respective semiconductor switch and gate driver circuit of each switching unit are arranged on a common carrier circuit board and are electrically connected to one another by a printed conductor on the carrier circuit board.

Abstract: An inverter system includes a rectifier configured to convert a 3-phase AC voltage into a DC voltage, a DC link capacitor configured to smooth the DC voltage into a DC link voltage, an inverter unit configured to convert the DC link voltage into an AC voltage and to output the AC voltage to a motor, and a controller configured to control operation of the inverter unit. The controller performs control to switch the inverter unit to a zero vector when overload is applied during operation of the inverter unit.

Abstract: A power module includes: a bridge unit including a bridge circuit composed including a plurality of SiC-MOSFETs Q1 and Q2 and an internal capacitor C1 connected so as to extend over between both ends of the bridge circuit; power terminals P and N of which one ends are respectively connected to both ends of the bridge unit and other ends are respectively exposed to the outside; and a snubber circuit (RB, CB) connected so as to extend over between an exposed side of the positive-side power terminal P and an exposed side of the negative-side power terminal N. A power circuit comprising the power module, and a smoothing capacitor C2 connected in parallel to the snubber circuit. There can be provided the power module and the power circuit which can simultaneously realize the low parasitic inductance and the low noise.