| 摘要 |
<p>PURPOSE:To reduce the power consumption of the electronic equipments by providing a power cut-off circuit to the intermittent power control circuit of each electronic equipment to cut off the power supply of each equipment based on a cut-off control signal. CONSTITUTION:A power cut-off circuit 10 is provided to the intermittent power control circuit of each of electronic equipments which are connected to each other in a loop shape. When a command is produced to cut off the supply of power to a specific one of electronic equipments, this command is inputted to the circuit 10 and the output of the circuit 10 is set at an L level. Thus no current flows to a base I of a transistor TR5. As a result, a relay RL5 is turned off and the supply of power is cut off to the output side (power supply part of electronic equipment) of the power supply of a connector 7. Thus it is possible to cut the power supply to the unnecessary electronic equipments only. Then the power consumption can be reduced to the electronic equipments.</p> |
