A novel single-phase soft-switched rectifier with unity power factor and minimal component count |
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| Authors: | Moschopoulos G Jain PK |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada; |
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| Abstract: | A novel, single-phase soft-switched boost AC-DC rectifier that operates with power-factor correction is proposed in this paper. The rectifier is a modified boost voltage-doubler converter well suited for low-line-input applications. It operates with fewer conduction losses and half the switch voltage stresses found in a standard boost converter. Soft switching in the converter is achieved using a zero-current-switching quasi-resonant technique. In the paper, the converter and its modes of operation are discussed and analyzed. The method of control is explained, and a design procedure is derived and then demonstrated with an example. The feasibility of the converter is shown with experimental results obtained from a prototype. |
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