A single-switch AC/DC converter with voltage regulated storage capacitor
| Autor: | D.K.-W. Cheng, Dylan Dah-Chuan Lu, Yim-Shu Lee |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Reservoir capacitor
Materials science business.industry Flyback converter Voltage divider Electrical engineering Energy Engineering and Power Technology Hardware_PERFORMANCEANDRELIABILITY Voltage regulator Decoupling capacitor Hardware_GENERAL Dropout voltage Hardware_INTEGRATEDCIRCUITS Electronic engineering Voltage multiplier Voltage regulation Electrical and Electronic Engineering business |
| Zdroj: | IEEE Power Electronics Letters. 1:78-82 |
| ISSN: | 1540-7985 |
| DOI: | 10.1109/lpel.2003.821586 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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