| 摘要 |
PROBLEM TO BE SOLVED: To perform stabilized output voltage control easily without being affected by wiring when a voltage drop on a feeder line 30 resulting from a load current is corrected in a DC stabilized power supply 21 being implemented as an AC adaptor by a switching power supply, for example. SOLUTION: A reference voltage correction circuit 36 predicts a voltage drop depending on a load current and performs correction for increasing the output voltage by varying a feedback reference value for stabilizing the output voltage from a reference voltage source 35 in correspondence with the load current detected by a load current detection circuit 33. Consequently, output detection wiring has no effect even if it is routed up to the vicinity of a load and the circuitry is not complicated because a reference rectification circuit is not provided independently from a rectification circuit for the load. COPYRIGHT: (C)2005,JPO&NCIPI
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