초록 ▼

In an automobile power supply where plural voltages can be supplied, a plurality of batteries and a DC/DC converter are assumed to be unnecessary, and it is possible to operate even when the controller breaks down.High-voltage terminal 11 and low-voltage terminal 12 are provided in battery 6. High-v

In an automobile power supply where plural voltages can be supplied, a plurality of batteries and a DC/DC converter are assumed to be unnecessary, and it is possible to operate even when the controller breaks down.High-voltage terminal 11 and low-voltage terminal 12 are provided in battery 6. High-voltage FET 4 for controlling the power supply in one direction from high-voltage terminal 11 to inverter 3 is connected between inverter 3 and high-voltage terminal 11. Low-voltage FET 5 for controlling the power supply in one direction from inverter 3 to low-voltage terminal 12 between inverter 3 and low-voltage terminal 12 is connected.

대표청구항 ▼

1. A power-supply unit for an automobile comprising:a battery having a high-voltage terminal and a low-voltage terminal; a converter for converting AC power into DC power; a first switching element for controlling the power supply in one direction from the high-voltage terminal of the battery to the

1. A power-supply unit for an automobile comprising:a battery having a high-voltage terminal and a low-voltage terminal; a converter for converting AC power into DC power; a first switching element for controlling the power supply in one direction from the high-voltage terminal of the battery to the converter; and a second switching element for controlling the power supply in one direction from the converter to the low-voltage terminal of the battery.