| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent circuit malfunction. <P>SOLUTION: A power supply control circuit comprises an IC for inputting a DC voltage converted from an AC voltage and supplied from a power source input line via an input terminal connected to the power source input line, and can output a DC voltage whose value is converted by operation of the IC. The IC is operable when a voltage equal to or higher than a predetermined threshold value is fed from an enable terminal. The power supply control circuit comprises an enable control circuit for lowering a voltage fed to the enable terminal below the threshold value when a DC voltage fed from the input terminal to the IC decreases below the predetermined value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
