| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply control circuit which controls on-state and off-state of a main power supply circuit without using a microcomputer.SOLUTION: A first clear circuit 2 outputs a low level signal for a predetermined period in response to a high level POFF signal. A flip-flop FF1 is cleared when the low level signal is inputted to the clear input, and outputs a high level signal from the Q(-) output, thus bringing the main power supply circuit 13 into the on-state. A flip-flop FF2 is cleared when the low level signal is inputted to the clear input, and protection processing is not performed. A second clear circuit 3 outputs the low level signal for a predetermined period in response to a high level APOWER signal. The flip-flop FF2 is cleared when the low level signal is inputted to the clear input, and the protection processing is not performed. |
