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Improved Zero-Voltage And Zero-Current-Switching Pwm Converter Using Voltage Clamping
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| Author(s) |
Tiecheng Sun, Gaolin Wang, Lin Mei |
| Abstract |
An improved zero-voltage and
zero-current-switching (ZVZCS) full-bridge (FB) PWM
bi-directional DC-DC converter employing modified voltage
clamping circuit is proposed to alleviate voltage ringing and
overshoot in secondary rectifier side due to resonance for
conventional full-bridge ZVZCS DC-DC converter. The
converter can achieve effective zero-voltage switching (ZVS) for
leading-leg switches and zero-current switching (ZCS) for
lagging-leg switches. It has advantages including without
additional lossy components, lower switching losses, reduced
conduction losses and bi-directional power flow. The
operating principle and characteristics of the converter are
analyzed. The proposed converter was verified by
implementing an IGBT-based experimental circuit. |
| Download |
| Filename: | A22611 |
| Filesize: | 218 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-15 by System |
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