Title :
Single-switch buck-boost type dither PFC converter using center-tapped transformer
Author :
Oba, Tsunetoshi ; Murabayashi, Haruyasu ; Murasige, Shinichi ; Takahashi, Isao
Author_Institution :
OMRON Corp., Kyoto, Japan
Abstract :
This paper proposes a single-switch buck-boost type dither PFC power converter using a center-tapped transformer. The conventional single-switch PFC power converter has a problem in the voltage rise on the smoothing capacitor at light load. The new circuit proposed in this paper solves this problem. The circuit makes use of the center tap of the transformer winding with no additional parts or control circuits being required
Keywords :
DC-DC power convertors; load (electric); power capacitors; power factor correction; power transformers; switching circuits; transformer windings; center-tapped transformer; light load; single-switch buck-boost type dither PFC power converter; smoothing capacitor; transformer winding; voltage rise; Power supplies; Power system harmonics; Pulse width modulation; Reactive power; Rectifiers; Smoothing methods; Switched capacitor circuits; Switches; Switching circuits; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703429
