Title:
IN-VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/195257
Kind Code:
A1
Abstract:
This in-vehicle power supply device is provided with a step-down circuit (140), a control unit (130), and a boost power supply unit (150). The step-down circuit is equipped with MOSFETs as switching elements, receives the voltage from a battery (2), steps down, by the on/off operations of the switching elements, the received voltage to a voltage with which a device (170) to be operated operates, and outputs the voltage to the device to be operated. The control unit controls the operation of the step-down circuit. The boost power supply unit is provided in parallel with the step-down circuit, receives the voltage from the battery, and boosts the received voltage to output the boosted voltage to the control unit.
Inventors:
SAKAMOTO KEIYA (JP)
Application Number:
PCT/JP2020/005208
Publication Date:
October 01, 2020
Filing Date:
February 11, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02M3/155; B60R16/02; B60R16/03
Foreign References:
| JP2009095214A | 2009-04-30 | |||
| JPH0884055A | 1996-03-26 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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