| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric circuit which changes the operational function of a load by stopping power supply temporarily.SOLUTION: An open circuit detection circuit 11 connected with a power supply 13 and receiving power supply therefrom, and having an output terminal for connection with a microprocessor (MCU) is provided. The MCU12 is connected with at least one load drive circuit 14, each connected with one load 15, one switch 16 is provided between the open circuit detection circuit 11 and power supply 13, and a program for controlling each load 15 is stored in the MCU12. When the switch 16 is turned on/off temporarily, and power supply by the power supply 13 is stopped temporarily and then resumed, the open circuit detection circuit 11 detects a temporal stop signal, transmits the signal thus detected to the MCU12, which used the received signal, and runs a program stored for controlling each load 15, thus changing the current operational function of each load 15 to other operational function.SELECTED DRAWING: Figure 1 |
