| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To have no effect upon output voltage caused by a power supply unit even if instantaneous interruption occurs at a commercial power supply using a simple and low-cost structure. <P>SOLUTION: This compensating circuit comprises an instantaneous interruption compensating circuit 50 on a forward stage of the power supply unit 10 which generates constant DC voltage from the voltage supplied to the input terminal 11. The circuit 50 includes a bridge diode 52 which rectifies AC voltage supplied from the commercial power supply for conversion into DC; and a capacitor 54 for holding the rectified voltage and supplying the held voltage to an input terminal 11 of the power supply unit 10. <P>COPYRIGHT: (C)2004,JPO</p> |
