DARK CURRENT REDUCING POWER SUPPLY CIRCUIT AND OPERATION METHOD OF DARK CURRENT REDUCING POWER SUPPLY CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a dark current reducing power supply circuit and its operation method for reducing a dark current in a constant voltage circuit.;SOLUTION: The dark current reducing power supply circuit is provided with a first sleep constant voltage circuit 2a for receiving a first voltage V1 from a main power supply 1, converting the first voltage V1 into a second voltage V2 and supplying a first load 41 with the second voltage V2, and a second sleep constant voltage circuit 2b connected to the first sleep constant voltage circuit 2a in series, receiving a third voltage V3 from the first sleep constant voltage circuit 2a, converting the third voltage V3 into a fourth voltage V4 and supplying a second load 42 with the fourth voltage V4.;COPYRIGHT: (C)2007,JPO&INPIT