SYSTEM FOR BLOCKING STANDBY POWER SUPPLY OF ELECTRONIC PRODUCT

摘要

PURPOSE: The system for blocking standby power supply of an electronic product is provided to prevent the consumption of power and load, by automatically stopping the standby power supply under the certain condition when a plurality of electronic load products connected to a main controller are used. CONSTITUTION: A standby power supply blocking system(U) receives the power supply from the main controller. The system(U) switches the power supply to a load device in response to the operation of a switching unit(20). A NAND gate(30) is connected to the switching unit(20). A timer(40) includes a time setting switch(41) connected to the NAND gate(30). A sensor(60) detects the data signal from the main controller and the direct current power supply applied from a direct current power supply part(80). A comparator(70) compares the signal from the sensor(60) with the signal from an operation signal data sensor(65).