A power supply circuit is provided for supplying power from multiple peripheral power supplies to a data processor. The power supply circuit includes a power bus, a plurality of load voltage converters each including an input coupled to the power bus and an output coupled to a respective one of multiple subsystems of the data processor, a plurality of input voltage converters each including an input for coupling to a respective one of multiple peripheral power supply voltages and an output coupled to the power bus, and a feedback control circuit having an input coupled to the power bus and a plurality of outputs coupled to respective ones of the input voltage converters for controlling a current draw of the respective input voltage converter.

Electric machine drive systems, and related electric machine embodiments, include technologies for providing redundancy of shaft information of one or more electric machines between converter controllers of the corresponding system. The converter controllers are configured to control operation of power converters, which control one or more electric machines. The disclosed technologies include establishing one or more communication buses between the converter controllers to share the shaft information, which may be based on analog signals from a single, common resolver and/or from different, redundant resolvers depending on the embodiment. For example, in some embodiments, converter controllers communicatively connected to the same resolver may include separate resolver-to-digital converters (RDCs) to provide redundancy of the RDCs.

A reconfigurable multi-phase power converter is disclosed. An apparatus comprises a first primary power converter configured to generate a first regulated supply voltage to a first regulated supply voltage node and a second primary power converter configured to generate a second regulated supply voltage to a second regulated supply voltage node. The apparatus further includes N secondary power converters, wherein N is an integer value of one or more, and a multiplexer circuit configured to select the at least one of the N secondary power converters to provide an output current to one of the first or second regulated supply voltage nodes.

A DC-DC converter is connected to an auxiliary battery using a second wire, and the DC-DC converter steps down a voltage and outputs it to the second wire. Plural loads are connected in parallel with the auxiliary battery to the DC-DC converter using plural third wires. A power supply control ECU varies the output voltage of the DC-DC converter and determines a fault range based on the output voltage of the DC-DC converter and a charging/discharging current of the auxiliary battery at that time.

A multi-mode power system includes a battery module, a first conversion circuit, and a second conversion circuit. The battery module includes a battery path switch and a battery group. The first conversion circuit includes switches and a first capacitor, wherein the switches include the battery path switch. The multi-mode power system operates in one of plural operation mode combinations, wherein when the first conversion circuit operates in a first outgoing mode or a first bypass mode, the second conversion circuit operates in a second incoming mode, a second outgoing mode, or a second bypass mode; when the first conversion circuit operates in a first incoming mode, the second conversion circuit operates in the second incoming mode or the second bypass mode.

A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.

A power supply device includes a power supply circuit configured to output different voltages to a plurality of output lines, a plurality of capacitors provided in correspondence with the plurality of output lines, one end of each of the plurality of capacitors being coupled to a corresponding output line of the plurality of output lines and an other end thereof being coupled to a ground potential, a plurality of diodes provided in correspondence with the plurality of output lines, anodes of the plurality of diodes being coupled to the corresponding output lines and cathodes thereof being commonly coupled, and a discharge resistor coupled to the cathodes of the plurality of diodes.

First and second circuit branches are coupled between an input node and ground. Each circuit branch includes a series coupling first-fourth transistors in a current flow path with an output node. A first capacitor is coupled between a first capacitor node and a second capacitor node intermediate the first transistor and the second transistor in the first circuit branch. A second capacitor is coupled between a third capacitor node and a fourth capacitor node intermediate the first transistor and the second transistor in the second circuit branch. An inter-branch circuit block between the first and second branches includes a first inter-branch transistor coupled between the first capacitor node in the first circuit branch and the fourth capacitor node in the second circuit branch and a second inter-branch transistor coupled between the third capacitor node in the second circuit branch and the second capacitor node in the first circuit branch.

A water electrolysis system includes a plurality of conversion circuits configured to convert a first power generated by a solar power generation apparatus into a plurality of second powers, respectively, a control circuit configured to control at least a number of driven conversion circuits among the plurality of conversion circuits, and a plurality of water electrolysis cells configured to receive the plurality of second powers from the plurality of conversion circuits, respectively, wherein the control circuit includes a detector configured to detect an occurrence of a change in the first power, the change exceeding a predetermined amount per predetermined time, and the control circuit increases the number of driven conversion circuits in response to the detector detecting the occurrence of the change.

A power adapter, includes: a transformer, including a primary winding and a secondary winding; a primary circuit, including a primary main switch, electrically coupled to the primary winding; a secondary circuit, including a first switch unit and a second switch unit; a first end of the first switch unit and a first end of the second switch unit are coupled to the secondary winding of the transformer, and a second end of the first switch unit and a second end of the second switch unit connected to a first output port and a second output port, respectively; a control circuit, configured to detect output voltages of the first output port and the second output port, and controlling the primary main switch, the first switch unit and the second switch unit to adjust the output voltages of the first output port and the second output port.