Power-supply device
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorTsuguo Nishimura
Life of this patent
Estimating the term…
Abstract
Disclosed is a power-supply device configured to supply an operating voltage from an external battery to a control circuit via a voltage terminal. The power-supply device is also configured to supply an operating voltage from an output terminal to a driving circuit of the power-supply device via a switch. The control circuit that has received the operating voltage compares the voltage of the output terminal with a predetermined voltage, and makes a determination. If the voltage of the output terminal is not higher than the predetermined voltage, a predetermined notification is sent outside the power-supply device.
Claims12
A power-supply device for converting a DC voltage and supplying the converted voltage to an external battery, the power-supply device comprising:
- a switching element;
- a control circuit that generates a control signal to turn on or off the switching element;
- a driving circuit that drives the switching element by using the control signal generated by the control circuit;
- an output terminal from which the converted voltage is supplied to the external battery;
- and
- a voltage terminal to which voltage is applied from the battery, wherein:
- the driving circuit is configured to receive voltage supplied from the output terminal,
- the control circuit is configured to receive voltage supplied from the voltage terminal, and
- the control circuit is configured to detect the voltage of the output terminal and compare the detected voltage with a predetermined voltage.
Dependencies are inferred from the claim text.