| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharging circuit which completely discharges a voltage charged to a capacitor. SOLUTION: The discharging circuit includes a capacitor 17 which is formed between input terminals 12, 13 and power source terminals 18-1, 18-2, first and second output terminals 14, 15 which are connected to the power source terminals of a device 18 which does not consume a voltage charged to the capacitor 17 when electric power is not supplied from a power source 16, a discharge resistor 19 whose one end is connected between the first input terminal 12 and the first output terminal 14, a relay switch 20 whose one end is connected to the other end of the discharge resistor 19 and whose other end is connected between the second input terminal 13 and the second output terminal 15, and a control circuit 21 which receives a signal which turns on or off the power source 16 to supply control signals S1, S2 which perform the control at prescribed timing to the power source 16 and the relay switch 20. When at least the power source 16 is in an off-state, the relay switch 20 is controlled by the control circuit 21 so that it may be brought into a closed state. COPYRIGHT: (C)2011,JPO&INPIT
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