CONTROLLER OF ACDC CONVERTER

摘要

PROBLEM TO BE SOLVED: To provide a controller of ACDC converter capable of improving the power factor.;SOLUTION: Based on an input voltage Vinr, a reference AC signal Sig of same cycle and same phase as those of a squared value of an input voltage Vinr is calculated. Based on an output voltage Vor and an output current Ior, an actual output power Por is calculated. Subsequently, based on the reference AC Sig and the actual output power Por, a target input powers Pintgt is calculated. On the other hand, based on the input voltage Vinr and an input current Iinr, an actual input power Pinr is calculated. The controller controls an improvement switch 12b which constitutes a PFC converter 10 to perform ON/OFF operation to feedback the actual input power Pinr to the target input powers Pintgt.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT