POWER CONTROL CIRCUIT OF ELECTRONIC APPARATUS

Japanese Patent JP3545129

B2

PROBLEM TO BE SOLVED: To prevent the power supply operation from breaking by controlling the opening/closing operation of first and second switches by the switching operation of first and second detection switches.
SOLUTION: In the case of removing it when using the first charge type of battery, an H level of detection signal is outputted to a detection signal terminal 7s by displacing a lock mechanism by operation, and the output signal of the second control signal detection terminal 23 is inverted to L level, and the output signal of the third control signal output terminal 24 to H level. Next, it gets in such condition that the DC voltage outputted from the first charge type battery 1 and the second charge type battery 10 is supplied to a DC-DC converter 19. Then, when the first charge type battery 1 is removed, this recognizes that the control circuit 21 is removed, the output signal of the first control signal output terminal 22 is inverted to L level, and the output signal of the fourth control signal output terminal 25 to H level, and it gets in such condition that the power from the second charge type battery 10 is supplied to a DC-DC converter 19. As a result, the break of the power in operation can be prevented.

JP7134058	Power supply and power supply system
WO/2021/063540	UNINTERRUPTIBLE POWER SUPPLIES WITH REPLACEABLE RECEPTACLE PANELS AND RELATED METHODS
JP3115713	Multi-function power supply

Yoshiyuki Yoshida

JP12714096A

July 21, 2004

May 22, 1996

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Sanyo Electric Co., Ltd.

H02J7/00; H02J1/00; H02J7/34; (IPC1-7): H02J7/00; H02J1/00; H02J7/34

JP8054967A
JP8009561A
JP7241047A
JP7200108A
JP6338306A
JP5333973A
JP5211728A
JP5197459A
JP5135754A
JP5115128A
JP5083884A
JP3207226A
JP1147639U

Masamasa Shibano

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