Title :
Analysis and simulation for a novel single-switch single-stage AC/DC converter
Author :
Hou, Ting-Wei ; Yeh, Chun-Lin ; Lai, Jiun-Tze
Author_Institution :
Nat. Cheng Kung Univ., Tainan
fDate :
Oct. 30 2007-Nov. 2 2007
Abstract :
In this paper, a novel simple single switch single stage ac/dc converter with high power factor correction (HPFC) and high efficiency on the flyback topology is presented. In this proposed converter, the bulk inductor of the conventional ac/dc converter is substituted for an auxiliary winding of a transformer. The voltage stress across the bulk capacitor can be clamped under the rectified line voltage. The efficiency of this converter can reach 90% and the maximum power factor (PF) of this converter is 0.99 at the power of 25W when the input voUage is 110 VAC. The major advantages of this converter are the high efficiency and high PFC. The circuit operation, analysis, and simulations are presented in the paper.
Keywords :
AC-DC power convertors; inductors; power capacitors; power factor correction; rectifying circuits; switching convertors; bulk capacitor; bulk inductor; efficiency 90 percent; flyback topology; power 25 W; power factor correction; rectified line voltage; single-switch single-stage AC-DC converter; transformer; voltage 110 V; Analog-digital conversion; Analytical models; Capacitors; DC-DC power converters; Inductors; Power factor correction; Reactive power; Stress; Switches; Topology; AC/DC converter; high efficiency; high power factor correction (HPFC); single switch single stage; voltage stress;
Conference_Titel :
TENCON 2007 - 2007 IEEE Region 10 Conference
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-1272-3
Electronic_ISBN :
978-1-4244-1272-3
DOI :
10.1109/TENCON.2007.4428848
