Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31514
Title: A single-switch AC/DC converter with voltage regulated storage capacitor
Authors: Lu, DDC
Cheng, DKW
Lee, YS
Keywords: AC/DC converter
Power factor correction
Single-stage
Storage capacitor voltage
Issue Date: 2003
Source: IEEE power electronics letters, 2003, v. 1, no. 3, p. 78-82 How to cite?
Journal: IEEE Power Electronics Letters 
Abstract: A single-stage power-factor-corrected ac/dc converter (SSPFC) usually causes high voltage stress on the intermediate storage capacitor, due to the lack of control of this voltage. The storage capacitor voltage varies largely with line voltage, and load current and is usually higher than the peak line voltage. This paper presents a new single-switch SSPFC based on a flyback topology for which the storage capacitor voltage is loosely regulated by the output voltage. Without using extra power switches to increase the control dimension, the proposed converter uses a flyback converter with dual-output transformer to achieve the control purpose. The range of storage capacitor voltage change against the change of input voltage and load current is significantly reduced. Moreover, the maximum storage capacitor voltage can stay below the peak line voltage at high line condition. Experimental results verifying the operation of the proposed SSPFC are also reported.
URI: http://hdl.handle.net/10397/31514
ISSN: 1540-7985
DOI: 10.1109/LPEL.2003.821586
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