DocumentCode :
1203547
Title :
Flexible and low cost design for a flyback AC/DC converter with harmonic current correction
Author :
Hsing-Fu Liu ; Lon-Kou Chang
Author_Institution :
Electr. & Control Eng. Dept., Nat. Chiao-Tung Univ., Hsingchu, Taiwan
Volume :
20
Issue :
1
fYear :
2005
Firstpage :
17
Lastpage :
24
Abstract :
This study presents a new simple flyback ac/dc converter with harmonic current correction and fast output voltage regulation. In the proposed ac/dc converter, an extra winding wound in the transformer provides two key advantages. The size of the bulk inductor used in the conventional boost-based power factor correction cell can be significantly reduced in the proposed converter. The voltage across bulk capacitor can be held under 450V by tuning the transformer winding ratio even though the converter operates in a wide range of input voltages (90 V/spl sim/265V/ac). This new converter complies with IEC 61000-3-2 under the load range of 200 W, and can achieve fast output voltage regulation.
Keywords :
AC-DC power convertors; IEC standards; power capacitors; power factor correction; power inductors; switched mode power supplies; transformer windings; 200 W; 265 V; IEC 61000-3-2; boost-based power factor correction; bulk inductor; flyback ac-dc converter; harmonic current correction; low cost design; switching mode power supply; transformer winding; Analog-digital conversion; Capacitors; Circuits; Costs; DC-DC power converters; IEC standards; Inductors; Power factor correction; Reactive power; Voltage control; IEC 61000-3-2 regulations; power factor correction (PFC); switching mode power supplies;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2004.839879
Filename :
1377388
Link To Document :
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