A DC:DC converter includes: a DC:AC converter circuit having DC and AC sides; an AC:DC converter circuit having DC and sides; an AC link connecting the AC side of the DC:AC circuit and the AC side of the AC:DC converter circuit, the AC link including a transformer having a first winding connected…

A bi-directional DC-DC converter and an on-board charger with the bi-directional DC-DC converter integrated into it are disclosed for converting a first voltage to a second voltage. The bi-directional DC-DC converter includes a transformer for magnetically coupling a primary circuit receiving the…

In a bidirectional charger that can perform the charging of a battery or single-phase three-wire power supplying, noise input to a commercial power supply side in charging the battery is reduced. A bidirectional charger includes: a first bidirectional power conversion circuit that converts DC power…

A series-parallel switching circuit for bidirectional power conversion is provided. The series-parallel switching circuit includes a first bidirectional direct current (DC) voltage source and a second bidirectional DC voltage source, a first bidirectional DC/DC isolation conversion circuit and a…

A power conversion device includes: a DC/DC converter; and a control circuit unit that controls the DC/DC converter, in which the DC/DC converter includes a first power output circuit that converts first direct current power into first alternating current power, an isolation transformer that…

A bidirectional power supply apparatus includes: an alternating current input port for inputting an alternating current to the bidirectional power supply apparatus; an alternating current output port for outputting the alternating current to an alternating current device; a direct current input or…

A bi-directional power converter, a control unit, a charging device and a method for transferring power between an EV and a power grid are provided. The bi-directional power converter includes an isolated DC-DC converter having a first stage converting a DC voltage into a high frequency AC voltage…

A method for switching between a forward operation and a reverse operation of an isolated bidirectional DC-DC circuit, a controller, a bidirectional converter, and a charging system are provided. The method includes: on receiving a switching signal, controlling a second bridge arm circuit to stop…

A DC-DC converter, an on-board charger, and an electric vehicle are disclosed. The DC-DC converter includes: a first adjustment module, a resonance module, a second adjustment module, a current detection module, and a controller. The current detection module is configured to detect a current signal…

A bidirectional DC/DC converter includes a first terminal circuit, a transformer, a second terminal circuit, and a reset circuit, and the transformer includes a first winding and a second winding. The first terminal circuit is coupled to the first winding, and the second terminal circuit and the…

The present disclosure provides a bidirectional LLC resonant converter and an integrated magnetic component for such a bidirectional LLC resonant converter. In order to increase the power density of such a converter, the I cores of the corresponding conventional converter are removed and the…

The present application discloses a multi-port energy storage battery and a multi-port energy storage battery pack. The multi-port energy storage battery includes: a first port, a second port and a third port, where the first port is a 48V DC voltage port, the second port is a 400V DC voltage port…

An electric power supply system includes an electric power storage device, a first relay provided between a first electric power line pair connected to the electric power storage device and a second electric power line pair connected to electrical equipment, a bidirectional electric power…

Provided are a power supply circuit and a power supply system. In the power supply circuit, a main circuit output module includes a first DC/DC converter and a first AC/DC inverter, and a conversion module is configured to output DC power to the first DC/DC converter according to input AC power…

A bidirectional DC-DC converter includes a first circuit that is configured to process a first voltage being a DC voltage and that includes a first electronic component including a first switching element; a second circuit that is configured to process a second voltage or a third voltage, the…

A power conversion apparatus connected to three or more voltage units, includes three or more power conversion circuits connected to respective units of the three or more voltage units; and a multiport transformer connected to the three or more power conversion circuits at mutually different ports…

An electrical system can include an isolated bidirectional converter (having an input couplable to a grid connection and an output couplable to a battery) and an isolated converter (having an input coupled to the input of the isolated bidirectional converter and couplable to the grid connection…

A bidirectional power converter includes a first switch circuit coupled to a second switch circuit via a transformer, wherein the first switch circuit is configured to transfer power to the second switch circuit during a charging mode, the second switch circuit is configured to transfer power to…

According to at least one aspect of the disclosure, a bi-directional AC/DC converter is provided comprising a DC-power connection configured to be coupled to a DC-power source, an AC-power connection configured to be coupled to at least one of an AC-power source or a load, a multiplexer having a…

A bidirectional power supply system receives power from a low voltage (LV) primary power supply, providing power to a control unit of a LV board net in a first mode of operation. A high voltage (HV) board net is coupled to a HV traction battery. A DC-DC converter, in the first mode, transfers…

A control method for controlling the frequency of the input voltage of a DC-DC converter of a bidirectional electrical charger, operating in discharge mode, includes: defining a set voltage value, calculating a control frequency value of the DC-DC converter, obtained by inverting the gain of the…

A DC-DC converter that converts an input DC voltage to an output DC voltage includes a first switching network, a first transformer component, a second transformer, a first secondary side rectifier circuit, and a second secondary side rectifier circuit. The first secondary side rectifier circuit…

The bidirectional insulating DC-DC converter shares high/low voltage terminals, a cooling passage, a housing, and a control board, and two independent step-down circuit () and step-up circuit () are formed in parallel to perform a bidirectional DC power conversion. A high voltage applied from a…

The present disclosure provides a method and apparatus for providing electrical isolation using a converter comprising a first converter working in a rectifier mode receiving AC current and providing DC current, a second converter working in an inverter mode receiving said DC current from said…

A DC-DC converter includes a first switching network that receives an input DC voltage and outputs a first AC voltage, a transformer, and a secondary side conversion circuit. The first switching network receives an input DC voltage. The transformer includes a middle-point primary tap such that when…

The present disclosure relates to a new bidirectional low voltage DC-DC converter (LDC), that is, a DC-DC converter capable of satisfying a safety level required for an eco-friendly vehicle and an autonomous vehicle and improving power conversion performance, and a method and an apparatus for…

A bidirectional or unidirectional DC-DC converter includes a primary stage and a secondary stage. The primary stage is configured to receive or output a first DC voltage. The primary stage includes a first switching network configured to convert the first DC voltage to a first alternating current…

A bidirectional DC-DC converter with three or more ports is described along with a method of operation thereof. The converter utilizes a common transformer for all ports and allows for power transfer from any port to any or all of the remaining ports. The converter may utilize a controller which…

In accordance with disclosed embodiments, a power conversion system and method are provided. The power conversion system comprises a main power source configured to deliver drive power to a load and an add-on power module. The add-on power module comprises an isolated DC/DC converter and a low…

Method of operating a bidirectional DC DC converter that transfers power among an energy source (for example, a solar PV array), an energy storage system, and an energy usage system (for example, a DC AC inverter) to control the charge and discharge times of the energy storage system so that power…