Title:
VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/134937
Kind Code:
A1
Abstract:
In this vehicle power supply device, a power storage unit (3) comprises a plurality of switches (SW1-SW4) that selectively switch between serial connection or parallel connection of a plurality of capacitors (C1-C3), and a voltage detection unit that measures the voltage across both ends of each of the plurality of capacitors (C1-C3). When a voltage detection unit (30) detects, as the voltage across both ends, a prescribed voltage at which at least one capacitor of the plurality of capacitors (C1-C3) is incapable of discharging further, a control unit (4) controls the plurality of switches (SW1-SW4) to connect in parallel, and thereby distributes the residual charge of at least one among the plurality of capacitors (C1-C3) to another capacitor, making it possible to supply power again to the load without charging again.
Inventors:
TAKEDA, Noriaki
Application Number:
PCT/JP2023/023781
Publication Date:
June 27, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (Moto-machi Kadoma-sh, Osaka 57, JP)
International Classes:
H02J7/00; B60L1/00; B60L50/40; B60L58/22; B60R16/02
Attorney, Agent or Firm:
YAMAO, Norihito et al. (Osaka Umeda Twin Towers North 8-1, Kakuda-cho, Kita-ku, Osaka-sh, Osaka 17, JP)
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