Abstract: An alternating pole electromagnetic rotary motor includes a ring gear housing, a rotor assembly, a plurality of electromagnets, and a processing unit. The rotor assembly includes a gear carrier, at least one planet gear, and at least one permanent magnet. The rotor assembly is concentrically and rotatably mounted within the ring gear housing. The at least one planet gear and the at least one permanent magnet is rotatably connected and radially distributed about the gear carrier. The plurality of electromagnets is operatively coupled with the at least one permanent magnet, where the plurality of electromagnetics is used to attract and repulse at least one permanent magnet in order to generate a torque on the rotor assembly.

Abstract: A turbomachine is provided. In one aspect, the turbomachine includes a rotating component and an electric machine that includes a stator assembly and a rotor assembly rotatable with the rotating component relative to the stator assembly. Further, the turbomachine includes an actuator coupled with the rotor assembly, the stator assembly, or both for moving the rotor assembly, the stator assembly, or both relative to one another. In addition, the turbomachine includes a controller configured to receive data indicating an operating state of the rotating component and cause the actuator to adjust a position of at least one of the stator assembly and the rotor assembly based at least in part on the operating state of the rotating component.

Abstract: A system for cooling a generator includes a generator system. The generator system includes a generator, an enclosure, the enclosure surrounding the generator, and a radiator, wherein the radiator is fluidly connected to the generator. The system also includes a radiator and ventilation fan system. The radiator and ventilation fan system includes a controller. The radiator and ventilation fans system also includes a ventilation fan variable frequency drive (VFD), the ventilation fans VFD in electrical communication with the controller and a ventilation fan in electrical communication with the ventilation fans VFD. In addition, the radiator and ventilation fan system includes radiator fans VFD in electrical communication with the controller and a radiator fan in electrical communication with radiator fans VFD. Further, the system includes temperature sensors, the temperature sensors in electrical communication with the controller.

Abstract: A cooling device for an electric motor that includes a stator, a rotor and a shaft fixed in an inner circumferential surface of the rotor. The stator includes a stator core and a stator coil wound on the stator core. The stator coil includes a protruding portion which protrudes from the stator core and which constitutes a coil end. The cooling device includes (a) a refrigerant supply mechanism for supplying a refrigerant from an upper side of the electric motor and (b) a refrigerant guide protruding from a motor casing toward an inner peripheral side of the coil end. The refrigerant supply mechanism is configured to supply the refrigerant to the refrigerant guide. The refrigerant guide extends in a direction of a rotation axis of the electric motor to a position that overlaps with the coil end as seen from a radial direction of the electric motor.

Abstract: A motor stator includes a stator core having a plurality of stator teeth on an inner diameter thereof and defining a respective plurality of slots between the plurality of stator teeth. A plurality of windings are disposed in the slots. A heat pipe network includes a plurality of evaporator portions including a hollow structure disposed in at least a portion of the plurality of slots and including an interior having a wick extending along the interior of the hollow structure. A condenser portion has an interior portion in communication with the plurality of evaporator portions and is located at an end of the stator core. The wick of each of the plurality of evaporator portions extend into the condenser portion.

Abstract: An electric drive unit that includes an electric motor having motor output shaft and a heat sink that is received therein. The heat sink is comprises of a plurality of discrete heat sink elements that are stacked together and inserted into the motor output shaft. The heat sink elements have central hubs that cooperate to form a coolant supply passage that extends centrally through the heat sink. Each of the heat sink elements defines a plurality of discrete coolant return passages that are relatively shorter in length than the central hubs so that a void annular space is formed between the coolant return passages of adjacent heat sink elements.

Abstract: An electric motor of a motor vehicle, in particular a steering motor, includes a housing having a motor compartment and an electronics compartment. The motor compartment and the electronics compartment are separated by a housing wall that has a plurality of openings. A stator is situated in the motor compartment and an electronics system is situated in the electronics compartment. The stator and the electronics system electrically contact one another through phase connections which project through the openings. A separating element is situated between the stator and the electronics system. The separating element at least partially covers the openings and the housing wall.

Abstract: A method of inspecting a stator stack includes disposing the stator stack on a support surface of an inspection system, and performing a depth measurement of a stator slot. The depth measurement includes rotating the stator slot along a first direction to a plurality of first orientations, taking a first image at each of the first orientations, and measuring a depth based on at least one of the first images. The method includes performing a width measurement of the stator slot, which includes rotating the stator slot along a second direction to a plurality of second orientations, taking a second image at each of the second orientations, and measuring a width based on at least one of the second images. The method further includes inspecting edges of the stator slot in the at least one of the first images to detect a potential deviation.

Abstract: An electric rotation machine comprises a rotor shaft and a rotor, which is arranged on the rotor shaft, of a rotor position sensor device. The electric rotation machine additionally has a static element, on which a stator of the rotor position sensor device is arranged, and a holding element, which is mechanically fixed to the static element and which blocks the translational degree of freedom of the stator of the rotor position sensor device in a first axial direction, wherein the translational degree of freedom of the stator of the rotor position sensor device is blocked by the static component in the opposite axial direction. By virtue of the electric rotation machine, a method for producing the electric rotation machine and a drive system are provided which allow an inexpensive arrangement of the rotor position sensor device with the smallest possible required installation space and the lowest possible weight.

Abstract: A manufacturing method of a cooling member to be used for a rotary electric machine. The manufacturing method includes a preparation step for preparing a plurality of annular collapsible cores having radial projections and recesses, a stacking step for concentrically stacking the plurality of collapsible cores along a direction of extension of a rotational axis of the rotary electric machine, a casting step for pouring a material of the cooling member into a die with the plurality of collapsible cores stacked in the die so that the material covers outer peripheral surfaces and inner peripheral surfaces of the plurality of collapsible cores, and a removal step for removing the plurality of collapsible cores after the casting step.

Abstract: There are provided a laminated iron core, a manufacturing method thereof, and a progressive die machine, in which the laminated iron core includes: a plurality of iron core pieces which are laminated; adhesives that bond the iron core pieces adjacent to each other. Each of the iron core pieces includes an annular yoke portion and a plurality of teeth portions projecting radially from the yoke portion. Each of the adhesives is arranged at a different radial distance from a central axis of the iron core pieces and is evenly arranged in a circumferential direction of the iron core pieces on at least one of the entire yoke portion and the entire teeth portions.

Abstract: A rotor for an electric machine includes strengthened structural elements effected through surface alloying and heating via an induction heating fixture. A rotor includes laminations formed to have internal cavities and structural members adjacent the cavities. A number of the laminations are stacked to form a lamination stack. An alloying material is applied to the lamination stack at the structural members. The lamination stack is placed in a fixture so that an inductor extends along the structural members and cooling elements extend through the cavities. A current is applied to the inductor to heat the structural members, alloying the alloying material into the structural members.

Abstract: Targeted cold working and nitriding is added to specific spots to decrease flux in bridge areas of motor steel laminations to alter the electromagnetic properties of these areas to reduce flux loss and increase the efficiency by using insulations coatings on the lamination steels as a nitriding barrier. The reduction in flux allows for the use of smaller magnets, which decreases costs and results in an increase in performance.

Abstract: An apparatus and method are for manufacturing coil members for insertion into slots of the core of a dynamo-electric machine. The coil members are formed by bending portions of an electric conductor. A feeder feeds portions of the conductor having a predetermined length through an aperture. The portions are fed along a feeding axis in a feeding direction and adjacent to an engagement member for engaging the conductor. The aperture is positioned before the engagement member in the feeding direction. Conveyors configured for moving the engagement member with respect to the aperture to engage a portion of the conductor with the engagement member in a transverse direction to the feeding axis, to bend the conductor. A pressing member selectively moves and engages the conductor to cause the conductor to engage a reaction surface proximate an aperture. The pressing member is before the engagement member in the conductor feeding direction.

Abstract: A coil alignment device includes: a plate-shaped first jig having a plurality of grooves arranged along a circumferential direction so as to extend toward a radial-direction outer side; and a second jig that can contact with a segment coil inserted in the first jig. Each groove includes a storage portion extending along a radial direction and having a first length so that leg portions of the segment coils can be stored side by side in the radial direction, and a guiding portion extending from the storage portion toward the radial-direction outer side, and has a first shape so that, using, as a fulcrum, one leg portion inserted in the storage portion, the other leg portion is movable toward the storage portion. The second jig is movable to press the segment coil from a radial-direction side and store the other leg portion into the storage portion.

Abstract: Helically winding a wire around a winding shaft by: supplying the wire from a nozzle while rotating the winding shaft having two or more corners on its side surface; and diagonally winding the wire on a surface between two corners among the side surface of the winding shaft. For each rotation of the winding shaft, the diagonal winding is performed while pushing the wire to a wound wire side by a holding component near a starting side corner of the surface, the holding component is rotated in synchronization with the winding shaft during the diagonal winding, the holding component is released after winding the wire on an ending side corner of the surface, then the holding component is moved to the vicinity of the starting side corner of the surface before starting next diagonal winding.

Abstract: A method for producing an intermediate product for an electrical machine includes supplying a mould for a housing part. A stator laminated core is laid inside the mould and the housing part is produced by introducing a molten metal alloy into the mould. The molten metal alloy comes directly into contact with the stator laminated core. The method relates to an electrical machine with such an intermediate product, and a vehicle with such an electrical machine.

Abstract: A motor assembly comprising a mover assembly and a stator. The mover assembly comprising a plurality of mover assembly units, each unit comprising: a non-ferromagnetic core with a profile of an outer surface having at least two flat sections lying on intersecting planes; at least two ferromagnetic laminated structures arranged on the at least two flat sections of the non-ferromagnetic core, each ferromagnetic laminated structure includes a stack of ferromagnetic plates, each plate is covered with a non-conductive coating. Each ferromagnetic laminated structure is arranged on a corresponding flat section of the at least two flat sections of the non-ferromagnetic core such that side of each ferromagnetic plate is adjacent to the non-ferromagnetic core thereby making the ferromagnetic plates of the at least two ferromagnetic laminated structures lie on intersecting planes.

Abstract: A magnetohydrodynamic pump for use in pumping molten salts that improves upon existing solutions is disclosed. The magnetohydrodynamic pump utilizes a linear induction motor with a cavity lined with ceramic and an interior piece forcing the molten salt to travel through an annular space where the magnetic. The magnetic field generated by the windings of the linear motor produce a wave of flux that will drive currents in the molten salt thus producing a force that will cause the fluid to pump. It is also an object of the disclosed concept to provide an improved method of operating a magnetohydrodynamic pump.

Abstract: A magnetic cylinder gear system includes an electric motor, a first cylindrical body, at least a first rectangular magnet, a second cylindrical body and at least a second rectangular magnet. The electric motor has a first rotatable drive shaft terminally and concentrically connected to the first cylindrical body. The first cylindrical body is positioned closely adjacent the second cylindrical body such that in an initial position a North polarity of the first rectangular magnet imparts magnetic attraction to a South polarity of the second rectangular magnet. In a rotated position, the South polarity of the first rectangular magnet imparts magnetic attraction to a North polarity of the second rectangular magnet such that a rotation of the first cylindrical body in a clockwise direction imparts a corresponding counter-clockwise rotation of the second cylindrical body, thereby driving the second cylindrical body without physical contact between the first cylindrical body and the second cylindrical body.

Abstract: A microcontroller with a slew-rate control circuit according to an embodiment includes a pre-drive circuit configured to charge and discharge a gate of an output power transistor with a constant current, a measuring circuit configured to measure a transition time period during which a drain-to-source voltage of the output power transistor makes a transition between a first voltage and a second voltage, and a microprocessor. The microprocessor controls a constant current set value of the pre-drive circuit such that the transition time period is a predetermined time period.

Abstract: A method for controlling the switching frequency of a switching regulator operating in a pulse skip mode, the method including: altering, by a digital logic block, a magnitude of a hysteresis voltage with a load current and an output ripple voltage of the switching regulator; and controlling, by a comparator, an average pulse skip mode frequency of the switching regulator, using the magnitude of the altered hysteresis voltage.

Abstract: A self-driven active clamp circuit applied to a flyback converter having a transformer and a switch has a clamp switch and a resistor. The clamp switch is connected between a first capacitor and a second capacitor in series. Another terminal of the first capacitor is connected to a first terminal of a primary-side winding of the transformer. Another terminal of the second capacitor is connected to a second terminal of the primary-side winding of the transformer and the switch of the flyback converter. A terminal of the resistor is connected to a control terminal of the clamp switch. Another terminal of the resistor is connected to the second terminal of the primary-side winding of the transformer and the switch of the flyback converter.

Abstract: According to one embodiment of the present invention, a zero voltage switching circuit comprises: a zero voltage switching unit which forms a full-bridge circuit at the primary side of a converter and comprises a plurality of switches for zero voltage switching; an adjustable inductor which performs zero voltage switching in resonance with a parasitic capacitor of the zero voltage switching unit, and is adjusted according to control of a control unit; and the control unit which controls inductance of the adjustable inductor according to an input voltage of the zero voltage switching unit or an electric current flowing in the adjustable inductor.

Abstract: Embodiments of a multi-mode transition circuit for a DC-DC converter and a DC-DC converter are disclosed. In an embodiment, a multi-mode transition circuit for a DC-DC converter includes a transconductance amplifier operably connected to a first resistor-capacitor (RC) network and switches, a comparator operably connected to a second RC network, where the first and second RC networks are operably connected to a reference voltage, a multiplexer operably connected to the transconductance amplifier and the comparator, and an operation mode selector configured to enable or disable the transconductance amplifier and turn on or off the switches in a sequence when transitioning between a pulse-frequency modulation (PFM) mode and a pulse-width modulation (PWM) mode.

Abstract: A secondary-side protection and sense circuit for a power converter has a sensing component, an adder amplifying circuit, an electronic switch, and a charge/discharge circuit. The sensing component is connected to an output connecting terminal of the power converter. The adder amplifying circuit has an operational amplifier, a first resistor, and a second resistor. The operational amplifier has an input terminal connected to the sensing component, an output terminal connected to a primary-side control component, and a power terminal. The first resistor and the second resistor are connected in series and between the input terminal and the power terminal of the operational amplifier. The electronic switch is connected between a ground terminal and a connection node between the first resistor and the second resistor. The charge/discharge circuit is connected to the electronic switch and the power terminal of the operational amplifier.

Abstract: A power converter between an AC side and DC of the power converter is disclosed. The AC side is connected to an AC supply grid and the DC side is connected to a DC grid. The power converter includes a bridge circuit connected to the AC side of the power converter via AC switches and connected to the DC side of the power converter via circuit breakers, wherein a DC link circuit of the power converter is chargeable from the AC supply grid via an AC precharging circuit. The power converter has an insulation monitor to measure the insulation resistance of the DC side when the AC precharging circuit is connected to the DC link circuit. The disclosure also includes a related method.

Abstract: A method of controlling a three-level DC-DC converter having first, second, third, and fourth power switches coupled in series between an input voltage and a reference ground, and a flying capacitor coupled between a common node of the first and second power switches and a common node of the third and fourth power switches, can include: operating the flying capacitor in a first mode in which the voltage across the flying capacitor is controlled to not be decreased in at least two consecutive first intervals, where each first interval is half of a switching period of the three-level DC-DC converter; and operating the flying capacitor in a second mode in which the voltage across the flying capacitor is controlled not to be increased in at least two consecutive first intervals, such that the voltage across the flying capacitor approaches a predetermined value.

Abstract: Circuits and systems include a parallel resistor-capacitor (RC) network coupled between a pin and ground, and first and second transistors coupled in source follower configuration with a common gate coupling. The source of the first transistor is coupled to the pin. A first switch couples a drain of the first transistor to the common gate coupling during soft-start (SS) and decouples that connection during over current limit (OCL) sensing, and a second switch couples a drain of the second transistor to the common gate coupling during OCL sensing and decouples that connection during SS. A first current source is enabled deliver a constant current to the pin during SS. A second current source is enabled to generate a reference voltage at the source of the second transistor during OCL, which reference voltage is transferred to the pin by the source follower configuration. A comparator controls the switches to transition from SS to OCL sensing.

Abstract: Apparatus and methods for switch-mode power supply start-up are provided herein. In certain embodiments, a switch-mode power supply includes an inductor and one or more power switches used to control a current through the inductor to provide voltage regulation. The switch-mode power supply uses external voltage levels to regulate one or more internal control signals (for example, for opening or closing the one or more power switches) to their zero output current switching state at the appropriate switch duty cycle. Furthermore, the switch-mode power supply can be implemented to provide a first pulse timing signal to establish the inductor current waveform for zero net output current delivery to a load.

Abstract: This application discloses a power supply system, including: A first end of a bus capacitor is connected to a first end of a power supply, and a second end of the bus capacitor is connected to a second end of a semiconductor switch device. A first end of the semiconductor switch device is connected to a second end of the power supply. An input end of a power conversion circuit is connected to the bus capacitor. Two ends of a resistor are respectively connected to the first end and the second end of the semiconductor switch device. When the semiconductor switch device is switched off, the power supply supplies power to the bus capacitor by using the resistor. When a voltage of the bus capacitor is greater than a first preset voltage, an auxiliary power supply is powered on and the semiconductor switch device is switched off.

Abstract: A power supply device for suppressing magnetic saturation includes a bridge rectifier, a boost inductor, a power switch element, a first PWM (Pulse Width Modulation) IC (Integrated Circuit), a first output stage circuit, an input switch circuit, a transformer, a first capacitor, a second output stage circuit, and a detection and control circuit. A leakage inductor and a magnetizing inductor are built in the transformer. The detection and control circuit includes an NTC (Negative Temperature Coefficient) resistor disposed adjacent to the transformer. The detection and control circuit detects the first voltage slope relative to the power switch element, and it detects the second voltage slope relative to the first output stage circuit. The detection and control circuit limits the inductive current flowing through the magnetizing inductor according to the first voltage slope, the second voltage slope, and the feedback voltage from the NTC resistor.

Abstract: A positive-and-negative-voltage charge pump circuit, comprising a clock generation module, a positive-voltage charge pump module, a transient enhancement module, and a negative-voltage charge pump module. The positive-voltage charge pump module generates a positive voltage according to a clock signal output by the clock generation module, and the transient enhancement module is used to sample the positive voltage and a power supply voltage, and convert same into currents for comparison, such that the negative-voltage charge pump module provides a switchable input voltage according to a comparison result. The negative-voltage charge pump module can quickly and reliably establish a negative voltage according to a clock signal output by the clock generation module, thereby improving the speed and efficiency of the negative-voltage charge pump module generating the negative voltage.

Abstract: Disclosed in the present invention are a charge pump circuit, a chip, and a communication terminal. The charge pump circuit comprises a phase clock generation module, an acceleration response control module, and a plurality of sub charge pump modules. By generating a plurality of clock signals with a fixed phase difference by means of the phase clock generation module, correspondingly controlling the plurality of sub charge pump modules to generate output voltages, and by means of the acceleration response control module, measuring the output voltage of each sub charge pump module, and separately outputting a logic signal to the phase clock generation module and each sub charge pump module, the frequency of the clock signals outputted by the phase clock generation module is changed, and the charge and discharge time of a capacitor in each sub charge pump module is reduced.

Abstract: Various implementations described herein are related to a device having a power stage that provides an output signal and a first feedback signal based on an input signal and a control signal. The device may have a digital stage with digital circuitry that provides a second feedback signal based on operational activity of the digital circuitry using the output signal. The device may have a control stage that provides the control signal based on the input signal, the first feedback signal and the second feedback signal.

Abstract: A boost converter comprises a comparator circuit including: a first input port configured to receive an off-time sawtooth voltage a second input port configured to receive an on-time sawtooth voltage, the comparator circuit comparing the off-time sawtooth voltage and on-time sawtooth voltage to generate trigger signal including a differential ripple voltage that is output by an output port to a power stage circuit. The boost converter further comprises a reference voltage source that provides a reference voltage to the first input port and a feedback circuit that provides the on-time sawtooth voltage to the second port, wherein the differential ripple voltage emulates an inductor current or voltage of an output capacitor of the power stage circuit.

Abstract: A method is applied in a pulse width modulation (PWM) controller within a driving circuit including a bidirectional circuit coupled to a load. The method includes steps of: obtaining a pulse width control code (PWCC) from a table stored in a memory within the PWM controller according to a difference between a first feedback signal from the load and an input signal, wherein the PWCC is corresponding to an intended voltage difference, and the first feedback signal is corresponding to a first cycle; generating a plurality of PWM signals according to the PWCC, wherein during a second cycle the bidirectional circuit performs a charging or discharging operation on the load according to the PWM signals; receiving a second feedback signal from the load corresponding to the second cycle; and updating the PWCC according to the first and second feedback signals, and saving the updated PWCC back to the table.

Abstract: A mode-transition architecture for USB controllers is described herein. In an example embodiment, an integrated circuit (IC) controller includes a controller coupled to a slope compensation circuit, the controller to detect a transition of a buck-boost converter from a first mode having a first duty cycle to a second mode having a second duty cycle that is less or more than the first duty cycle. The controller controls the slope compensation circuit to nullify an error in an output caused by the transition. The controller can cause the slope compensation circuit to apply a charge stored in a capacitor during a first cycle to start a second cycle with a higher voltage than the first cycle.

Abstract: Controller and method for a power converter. For example, a controller for a power converter includes: a first gate driver configured to output a first drive signal to a first transistor related to a primary winding, the first transistor including a drain terminal and a source terminal, the primary winding being configured to receive an input voltage, the primary being coupled to a first auxiliary winding and a second auxiliary winding; one or more voltage detectors configured to generate a first detection signal and a second detection signal based at least in part on a current signal related to the first auxiliary winding; a time controller configured to receive the first detection signal and the second detection signal and generate a control signal based at least in part on the first detection signal and the second detection signal; and a second gate driver configured to receive the control signal.

Abstract: A converter includes a power stage to provide a current through a primary winding of a transformer in response to a PWM signal and to induce a current in a secondary winding of the transformer to generate an output voltage. The power stage has a switching terminal. The converter also includes a controller, a clamp circuit, and an impedance device. The controller includes a first transistor coupled with a second transistor to initiate an operational voltage during a startup mode and to provide a control voltage based on an amplitude of a switching voltage at the switching terminal during a switching mode. The clamp circuit couples between the control input of the first transistor and a reference terminal and clamps a voltage at the first control input responsive to the switching voltage exceeding a clamp voltage. The impedance device couples between the switching terminal and the clamp circuit.

Abstract: A multi-mode hybrid control DC-DC converting circuit has a switching power converter and a microcontroller. The switching power converter has a transformer and a switching switch. The switching switch is connected to a primary-side winding of the transformer in series. The microcontroller is connected to the switching power converter and a control terminal of the switching switch. The microcontroller sets multiple thresholds according to an input voltage of the switching power converter, and determines whether a feedback voltage of the switching power converter is higher or lower than each one of the thresholds to perform a variable-frequency mode, a constant-frequency mode, or a pulse-skipping mode. The microcontroller outputs a driving signal to the switching switch and correspondingly adjusts a frequency of the driving signal according to the variable-frequency mode, the constant-frequency mode, or the pulse-skipping mode which is performed.

Abstract: A switch mode power supply circuit with high voltage output, an electrostatic spray apparatus and agricultural plant protection apparatus using the same are provided. The switch mode power supply circuit is electrically connected in series with at least a pre-stage power converter and a post-stage power converter. In order to simplify the control, the switch of the pre-stage power converter is omitted, only one switch of the post-stage power converter is adopted to perform synchronous control. Since the multiple sets of power conversion circuits in the previous stage are connected in series, the turn ratio of the transformer in the power converter in the subsequent stage can be reduced. Therefore, the transformer can be miniaturized and the power supply circuit would be more suitable for agricultural plant protection machine and electrostatic spray apparatus.

Abstract: In at least one embodiment, a power conversion device for a vehicle is provided. At least one controller is configured to selectively switch a first plurality of switches and a second plurality of switches to convert a first input signal into a first output signal. The at least one controller is further configured to receive a high voltage signal on a primary side and to receive a low voltage signal on the secondary side. The at least controller is further configured to generate a compensation factor based at least on the high voltage signal and the low voltage signal. The at least one controller is further configured to provide a first activation signal to control the switching of the first plurality of switches and the second plurality of switches based at least on the compensation factor.

Abstract: A DC/DC-Converter, including a transformer that includes a primary side which includes n primary coils and a secondary side which includes n secondary coils, wherein the primary side is terminated by n primary capacitors, which are connected in a first polygon arrangement, each primary capacitor connecting two of the primary coils. The first converter circuit is connected in between primary side of the transformer and two primary side contacts, and includes a first multilevel converter configured to work as a inverter when the DC/DC-converter is used in a forward mode, a second converter circuit connected in between the secondary side of the transformer and two secondary side contacts and is configured to work as a rectifier when the DC/DC-converter is used in a forward mode; and a control circuit configured to control the first multilevel converter of the first converter circuit to work as the inverter in the forward mode.

Abstract: A power module includes: a first substrate layer that is disposed on a first plane; a second substrate layer that is disposed on a second plane that is parallel to the first plane; first and second electrical conductors that are configured to be electrically connected to first and second direct current (DC) reference potentials, respectively, and that extend outwardly from the power module on a third plane that is parallel to the first and second planes; third, fourth, and fifth electrical conductors that are configured to be electrically connected to first, second, and third alternating current (AC) reference potentials, respectively, and that extend outwardly from the power module on a fourth plane that is parallel to the first, second, and third planes; and a plurality of dies of switches, respectively, disposed between the first and second substrate layers.

Abstract: An object is to provide a power conversion device that enables a capacitor element to be efficiently cooled, thus suppressing deterioration of the capacitor element due to heat. The power conversion device includes: a power module including a module body portion storing a semiconductor element, and a power terminal protruding from the module body portion; a capacitor module including a capacitor body portion storing a capacitor element, and a capacitor busbar protruding from the capacitor body portion and connected to the power terminal; and a housing storing the power module and the capacitor module. The housing has a first surface to which the power module is thermally connected, and a second surface to which the capacitor module is thermally connected. A coolant path for cooling the first surface is provided on a back side of the first surface. The capacitor busbar is thermally connected to the first surface.

Abstract: A power conversion device and an integrated machine are provided, The power conversion device includes a housing and a power converter. The power converter is arranged in the housing, and two ends, opposite to each other, of the power converter are respectively provided with a direct current wiring area and an alternate current wiring area. Two ends of the housing corresponding to the direct current wiring area and the alternate current wiring area each is provided with a movable door being capable of being opened and closed.

Abstract: A switching device is provided. The apparatus includes a switching circuit and a noise filter. The switching circuit is capable of switching a connection destination of a first power conversion circuit other than a second power conversion circuit among the plurality of power conversion circuits between a phase corresponding to the first power conversion circuit and a certain phase of the external power supply. The second power conversion circuit corresponds to the certain phase of the external power supply. In the noise filter, a capacitor is provided on a side of the multiple-phase AC supply of the switching circuit.

Abstract: The present disclosure provides a power supply control circuit and control method for a switching power supply system. The control circuit includes: a power transistor and current sampling module, a voltage common collector (VCC) charging management module, a switch module, and a voltage regulator clamping module. The power transistor and current sampling module includes: a main switch high-voltage power transistor, a power transistor driver, an auxiliary sampling high-voltage transistor, and a current sampling resistor. The switch module includes a first switch, a second switch, a third switch, and a fourth switch. The present disclosure realizes time-division multiplexing and seamless transition through a reasonable timing of the switch module, thereby enabling multiplexing of high-voltage devices reducing demands for high-voltage processes, saving chip costs, and reducing design difficulty.

Abstract: A converter has module devices each with a series connection of at least two partial modules being electrically connected in series. A central device is configured to switch module control devices, in which a sum of the transmitted voltage values or the transmitted sum value reaches a predefined voltage threshold, into a second charging phase of a charging operation by transmitting a first voltage specification relating to switched-off partial modules and a second voltage specification relating to switched-on partial modules to the module control devices. The module devices are configured to meet the first and second voltage specifications by setting none, one or more of the communication-capable partial modules thereof into a switched-on operating state and none, one or more of the other communication-capable partial modules thereof into a switched-off operating state, and to continue the charging of the energy stores which are in the switched-on and blocked operating state.