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SOFT SWJTCHING PWM AC/DC CONVERTER | ||
| Basrah Journal for Engineering Science | ||
| Article 1, Volume 5, Issue 1, 2005, Pages 55-69 PDF (0 K) | ||
| Authors | ||
| M.M. Ibrahim; ; | ||
| Abstract | ||
| This paper presents a PWM AC/DC buck converter circuit incorporating a frontend rectifier followed by a DC/DC converter. Two transistors are used as a main and auxiliary switches. The proposed circuit provides zero-current (ZC) turn ON and zero-current/zero-voltage (ZCZV) turn OFF to the two transistors, besides zero-voltage turn ON to two diodes. Numerical methods are used to analyse and determine the performance of the converter system. A feedforward technique is employed to improve the performance of the converter over a range of output power. | ||
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