| 摘要 |
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. |
