Abstract: A control module, for a resonant switched-capacitor converter having first, second, third and fourth cascaded switches and generating an output voltage, includes a timing circuit generating a clock, a controller generating first and second control signals indicating, respectively, first and second control quantities, the difference between which being a function of the difference between a reference quantity and a feedback quantity depending on the output voltage, first and second delay circuits that generate first and second logic signals and, respectively, third and fourth logic signals, the first and third logic signals being delayed with respect to the clock as a function of, respectively, the first and second control quantities, the second and fourth control signals being respectively the logic negation of the first and third logic signals, and a driver that controls the first, second, third, and fourth switches based on, respectively, the first, second, third, and fourth logic signals.

Abstract: A power converter is provided. The power converter includes first to fourth switches electrically connected in series, a flying capacitor and a controller. Positive and negative terminals of the flying capacitor are electrically connected to the second and third switches respectively. The controller operates the first and fourth switches to perform a first complementary switching with a first dead time, and operates the second and third switches to perform a second complementary switching with a second dead time. The controller determines to regulate the first or second dead time by detecting a capacitor voltage of the flying capacitor, such that the capacitor voltage of the flying capacitor is maintained within a balance voltage range.

Abstract: A drive unit, in particular for a vehicle flap drive, includes a housing (3), a motor (2) arranged in the housing, a control device (11) configured for control of the motor (2), comprising a first printed circuit board (12) having a top side (12a) and a underside (12b), and a second printed circuit board (13) having a top side (13a) and an underside (13b), wherein the first printed circuit board (12) is arranged above the motor (2), and the second printed circuit board (13) is arranged above the first printed circuit board (12). The drive unit further comprises a power unit (19) arranged on the first printed circuit board (12), comprising at least one first filter (20) and a Hall sensor (21) and a control unit (23) arranged on the second printed circuit board (13), the control unit (23) comprising at least one microcontroller (24) and a voltage regulator (26). At least one polarity reverse protection device (29) is arranged on the underside (12b) of the first printed circuit board (12).

Abstract: Provided is a stator including a coil of a winding of a flat wire conductor, a stator core including a slot for housing a part of the coil, and a flow passage part through which a coolant flows, provided between a wall part of the slot and an outer surface of the coil facing the wall part. The extension shape of the flow passage part from an inlet to an outlet for the coolant changes along the axial direction of the stator core. The flow passage part is, for example, a concave part formed on the wall part of the slot.

Abstract: A DC-DC converter circuit includes a high-side transistor, a low side transistor, a gate driver power supply, a converter control, and a capacitance divider network. The high-side transistor includes a high-side drain terminal, a high-side source terminal, and a high-side gate terminal. The high-side drain terminal is coupled to a positive DC supply terminal. The gate driver power supply is electrically isolated from the high-side transistor and the low-side transistor. The converter control is configured to supply high-side control commands and low-side control commands to the high-side transistor and the low-side transistor, respectively. The capacitance divider network includes a first capacitor and a second capacitor. The first capacitor is electrically connected in series, at a DC-link midpoint node, to the second capacitor. The DC-link midpoint node, the gate driver power supply, and the converter control are all electrically connected to, and share, a local electrical ground.

Abstract: A concentric manifold ring assembly comprises an internal distribution manifold for a generator. The manifold is for use in a direct-liquid-cooled alternator together with a mating housing to form a concentric fluid distribution channel that enables the transport and distribution of chilled coolant from a heat exchanger to select locations in the alternator via channels, ducts, and jets. The external heat exchanger feeds chilled coolant through a feed port where the incoming fluid is directed circumferentially via a channel formed by the manifold body and housing. From the circumferential flow, streams of coolant flow from drilled jet ports, while the circumferential flow back-cools rectifier mounting surfaces. Fluid flows flowing axially out of ducts to create an active end-to-end circulation of chilled fluid within the alternator to absorb thermal energy from alternator components before being drawn out of a return flow channel via a return flow port.

Abstract: Load bridges (2) of an inverter unit (1) include load branches having semiconductor switches (4, 5, 15, 16), that have a node point (6) which is connected to a load (7) and to two different potentials (P1, P2). Node points (6) are connected via a first resistance circuit (8) to potential (P1). Node points (6) are further connected via second resistance circuits (9) to tap-off points (11). The tap-off points (11) are connected via third resistance circuits (10) to the other potential (P2). At each of the tap-off points (11), a potential (U1, U2, U3) is tapped-off and is fed to a monitoring device (12). The monitoring device (12) determines the difference (U1?) between the tapped-off potentials and the second potential (P2). The control device (3) considers the signals (M1, M2, M3) for the actuation of the load bridges (2).

Abstract: A drive adjustment circuit for a power semiconductor element includes a differentiating circuit to differentiate a gate voltage of a power semiconductor element, a power supply to generate a comparison reference voltage, a comparator having a first input terminal connected to the differentiating circuit and a second input terminal receiving the comparison reference voltage, and a voltage adjusting circuit to adjust a gate voltage of the power semiconductor element based on an output of the comparator.

Abstract: A power supply control device includes: a power conversion device; a controller; a current detection device; a comparison device configured to output a shut-off start signal when a value of current detected by the current detection device is larger than a preset current threshold value; a shut-off device configured to shut off, based on a shut-off control signal, a conversion operation signal; a latch device configured to output the shut-off control signal based on the shut-off start signal output by the comparison device and to perform, until a latch release signal is input, a latch operation, in which the shut-off device is caused to maintain a state in which a conversion operation signal is shut off; and a delay device configured to output a latch release signal after a delay time elapses, the delay time being determined by components of the delay device.

Abstract: Provided are a sub inverter of a full-bridge constituted by two arms: an arm and an arm, each of which is mounted on a different module, a main controller to drive and control the sub inverter by switching an operation mode between a first mode in which a first arm performs a low-frequency switching operation and a second arm performs a high-frequency switching operation, and a second mode in which the second arm performs a low-frequency switching operation and the first arm performs a high-frequency switching operation, and an operation ratio setting circuitry to set an operation ratio on the basis of a bias of a temperature rise between the modules.

Abstract: A converter includes L phase legs, each phase leg of the L phase legs comprising a plurality of switches connected in series between an input power source and ground, wherein a first flying capacitor of an Mth phase is cross-coupled between an Mth phase leg and an (M+1)th phase leg, and a first flying capacitor of an Lth phase is cross-coupled between an Lth phase leg and a first phase leg, and wherein switches of the L phase legs are configured such that a ratio of an input voltage of the hybrid multi-phase step-down power converter to an output voltage of the hybrid multi-phase step-down power converter is equal to N/D, and wherein L, M, N are positive integers with M<L, L>2, and D is a duty cycle of the hybrid multi-phase step-down power converter.

Abstract: A transport climate control system is disclosed. The transport climate control system includes a self-configuring matrix power converter having a charging mode, an inverter circuit, a controller, a first DC energy storage and a second DC energy storage, and a compressor. The first DC energy storage and the second DC energy storage have different voltage levels. During the charging mode, the inverter circuit is configured to convert a first AC voltage from an energy source to a first DC voltage, the controller is configured to control the self-configuring matrix power converter to convert the first DC voltage to a first output DC voltage to charge the first DC energy storage, and/or to a second output DC voltage to charge the second DC energy storage.

Abstract: Provided is a control apparatus including a sensing unit configured to output a short circuit sensing signal in response to sensing, in a turn-on period of a main switching device by a switching device for on control, of short circuit of the main switching device, a protection operation control unit configured to output an instruction signal of a short circuit protection operation at delayed timing relative to the short circuit sensing signal, and a protection unit configured to turn off the switching device for on control in response to the instruction signal, in which the protection operation control unit outputs the instruction signal in response to continuation of the short circuit sensing signal beyond a first reference time period.

Abstract: A voltage generator includes: a sealed case having a ground potential; a high-voltage transformer that is housed in the sealed case and boosts a voltage; a booster circuitry that is housed in the sealed case and boosts a voltage outputted from the high-voltage transformer; and a voltage detector that is housed in the sealed case and detects a voltage boosted by the booster circuitry. A first creepage path ranging from a high-voltage portion, which is a portion to which a highest voltage is applied in the voltage detector, to a ground point having an equal potential to the sealed case includes a first bent path, which is a bent path.

Abstract: A voltage regulator includes an input power supply node, an output regulated power supply node, a flipped voltage follower circuit, and a compensation capacitor. The flipped voltage follower circuit includes an output transistor configured as a common-source amplifier circuit. A source terminal of the output transistor is coupled to the input power supply node and a drain terminal of the output transistor is coupled to the output regulated power supply node. The flipped voltage follower circuit includes a folded cascode feedback circuit. The folded cascode feedback circuit includes a folding node. The folded cascode feedback circuit is configured to receive an output regulated voltage on the output regulated power supply node and to provide a feedback signal to a gate terminal of the output transistor. The compensation capacitor is coupled to the output regulated power supply node and the folding node.

Abstract: A controllable temperature coefficient bias (CTCB) circuit is disclosed. The CTCB circuit can provide a bias to an amplifier. The CTCB circuit includes a variable with temperature (VWT) circuit having a reference circuit and a control circuit. The control circuit has a control output, a first current control element and a second current control element. Each current control element has a “controllable” resistance. One of the two current control elements may have a relatively high temperature coefficient and another a relatively low temperature coefficient. A controllable resistance of one of the current control elements increases when the controllable resistance of the other current control element decreases. However, the “total resistance” of the current control circuit remains constant with a constant temperature. The VWT circuit has an output with a temperature coefficient that is determined by the relative amount of current that flows through each current control element of the control circuit.

Abstract: Disclosed is a motor. The motor includes a housing part including a housing body, and a housing cover that covers one side of the housing body, a stator provided in an interior of the housing body, a rotor assembly accommodated inside the stator to be rotatable, and having a fluid flow path for causing a cooling fluid introduced to a front side thereof to flow into a rear side that faces the housing cover, and a reflective plate coupled to the rotor assembly, disposed between the rotor assembly and the housing cover, and that defines a fluid spattering path, along which the cooling fluid that flows through the fluid flow path spatters in a radial direction thereof.

Abstract: An object is to provide a technique capable of bringing a switching time point of a gate drive condition close to an appropriate switching time point. A semiconductor switching element drive circuit includes a logic circuit that inverts a level of an output signal based on a divided voltage of an output voltage of a semiconductor switching element, and a switching circuit. The switching circuit switches a gate drive condition of the semiconductor switching element during a turn-off operation from a first gate drive condition to a second gate drive condition in which a switching speed is lower than that of the first gate drive condition based on the output signal from the logic circuit.

Abstract: An AC-DC power converter includes: an AC rectification circuit configured to convert an AC line voltage into a rectified line voltage; a charge-pump-based power factor correction sub-converter configured to provide a DC-bus supply voltage; a resonant sub-converter configured to convert the DC-bus supply voltage to a DC output voltage or DC output current, the resonant sub-converter including: a resonant tank configured to convert the DC-bus supply voltage to a resonant voltage or current; and an output rectification circuit configured to generate the DC output voltage or DC output current from the resonant voltage or current to supply a converter load, and a controllable switch network shared by the charge-pump-based power factor correction sub-converter and the resonant sub-converter.

Abstract: A Totem Pole PFC circuit includes at least one fast-switching leg, a slow-switching leg, and a control unit. Each fast-switching leg includes a fast-switching upper switch and a fast-switching lower switch. The slow-switching leg is coupled in parallel to the at least one fast-switching leg, and the slow-switching leg includes a slow-switching upper switch and a slow-switching lower switch. The control unit receives an AC voltage with a phase angle, and the control unit includes a current detection loop, a voltage detection loop, and a control loop. The control loop generates a second control signal assembly to respectively control the slow-switching upper switch and the slow-switching lower switch. The control loop controls the second control signal assembly to follow the phase angle, and dynamically adjusts a duty cycle of the second control signal assembly to turn on or turn off the slow-switching upper switch and the slow-switching lower switch.