Abstract: A hybrid fault protection circuit (HFPC) includes an input, an output, a resistor-fuse circuit, an electrically-controlled safety switching device (ESSD) and an overload protection module (OPM). The input receives power from a power source. The output outputs power to a high-power cyclical load. The resistor-fuse circuit includes a resistor and one or more fuses collectively being connected in series with the resistor. The ESSD includes a coil and contacts. The contacts are connected in parallel with the resistor-fuse circuit. The OPM: arms the HFPC by energizing the coil and closing the contacts to supply load current from the input to the output via the contacts when a fault downstream from the HFPC does not exist; detects a fault downstream from the HFPC; and, in response to detecting the fault, opens the contacts to cause fault current to pass through the one or more fuses and not across the contacts.

Abstract: A conversion circuit is disclosed and includes a DC link, a first DC-to-DC converter, an inverter and a second inverter. The DC link includes DC link rails. The first DC-to-DC converter includes a first phase leg and a second phase leg. The first reactor is connected between a first center terminal of the first phase leg and at least one energy storage module. The second reactor is connected between a second center terminal of the second phase leg and the at least one energy storage module. The first reactor, the at least one energy storage module and the second reactor are connected in series between the first center terminal and the second center terminal such that the first DC-to-DC converter has a virtual ground.

Abstract: A DC-DC auto-converter module includes a positive source terminal, a negative source terminal, a positive load terminal, a negative load terminal, and a DC-DC converter. The negative source terminal cooperates with the positive source terminal to facilitate electrical connection of a DC power source thereto. The negative load terminal cooperates with the positive load terminal to facilitate connection of an electrical load thereto. The isolated DC-DC converter comprises an input circuit and an output circuit that is galvanically isolated from the input circuit. The DC-DC converter includes a positive input terminal, a negative input terminal, a positive output terminal, and a negative output terminal. At least one of the positive input terminal, the negative input terminal, the positive output terminal, and the negative output terminal is galvanically connected to at least one of the positive source terminal, the negative source terminal, the positive load terminal, and the negative load terminal.

Abstract: A DC-DC auto-converter module includes a positive source terminal, a negative source terminal, a positive load terminal, a negative load terminal, and a DC-DC converter. The negative source terminal cooperates with the positive source terminal to facilitate electrical connection of a DC power source thereto. The negative load terminal cooperates with the positive load terminal to facilitate connection of an electrical load thereto. The isolated DC-DC converter comprises an input circuit and an output circuit that is galvanically isolated from the input circuit. The DC-DC converter includes a positive input terminal, a negative input terminal, a positive output terminal, and a negative output terminal. At least one of the positive input terminal, the negative input terminal, the positive output terminal, and the negative output terminal is galvanically connected to at least one of the positive source terminal, the negative source terminal, the positive load terminal, and the negative load terminal.

Abstract: A DC-DC auto-converter module includes a positive source terminal, a negative source terminal, a positive load terminal, a negative load terminal, and a DC-DC converter. The negative source terminal cooperates with the positive source terminal to facilitate electrical connection of a DC power source thereto. The negative load terminal cooperates with the positive load terminal to facilitate connection of an electrical load thereto. The isolated DC-DC converter comprises an input circuit and an output circuit that is galvanically isolated from the input circuit. The DC-DC converter includes a positive input terminal, a negative input terminal, a positive output terminal, and a negative output terminal. At least one of the positive input terminal, the negative input terminal, the positive output terminal, and the negative output terminal is galvanically connected to at least one of the positive source terminal, the negative source terminal, the positive load terminal, and the negative load terminal.

Abstract: A DC-DC auto-converter module includes a positive source terminal, a negative source terminal, a positive load terminal, a negative load terminal, and a DC-DC converter. The negative source terminal cooperates with the positive source terminal to facilitate electrical connection of a DC power source thereto. The negative load terminal cooperates with the positive load terminal to facilitate connection of an electrical load thereto. The isolated DC-DC converter comprises an input circuit and an output circuit that is galvanically isolated from the input circuit. The DC-DC converter includes a positive input terminal, a negative input terminal, a positive output terminal, and a negative output terminal. At least one of the positive input terminal, the negative input terminal, the positive output terminal, and the negative output terminal is galvanically connected to at least one of the positive source terminal, the negative source terminal, the positive load terminal, and the negative load terminal.