Title:
CHARGING SYSTEM, BACKUP POWER SOURCE SYSTEM, AND MOVING OBJECT
Document Type and Number:
WIPO Patent Application WO/2023/106146
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to miniaturize a circuit. A charging circuit (11) provided in a charging system (10) according to the present disclosure causes charging current to be supplied from a power source (2) to a power storage device (3). A shunt resistor (R1) is connected to a charging path (RT11) through which the charging current flows. An amplifier (A1) amplifies a voltage between both ends of the shunt resistor (R1) and outputs the voltage. A control unit (13) controls the charging circuit (11) on the basis of the output of the amplifier (A1). A power supplying circuit (16) supplies a driving voltage to the amplifier (A1). The power supplying circuit (16) has: a first power supplying path (RT1) including a diode (D2) connected between an input terminal (TR1) and a power source terminal of the amplifier (A1); and a second power supplying path (RT2) including a switch (SW1) connected between the power storage device (3) and the power source terminal of the amplifier (A1). The switch (SW1) is turned on when a charging voltage of the power storage device (3) exceeds a threshold voltage.
Inventors:
KUMODA YO
YAMANAKA SHOHEI
YAMANAKA SHOHEI
Application Number:
PCT/JP2022/043709
Publication Date:
June 15, 2023
Filing Date:
November 28, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J7/10; B60L50/60; B60L58/18; H01M10/48; H02J1/00; H02J7/04
Foreign References:
| JP2010178528A | 2010-08-12 | |||
| JP2005033856A | 2005-02-03 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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