This work presents a novel highly efficient and low-stress battery charger with a resonant switch converter - based on resonance and zero-voltage-transition soft-switching theory - that reduces defects associated with high voltage and high current stresses caused by the resonance of traditional resonant circuits. The novel battery charger meets the requirement that all circuit components must operate with zero-voltage switching. Experimental test results indicate that the proposed battery charger reduces the temperature of an active power switch, and switching losses are less than those obtained using a traditional pulsewidth-modulation converter as a battery charger.
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Chuang et al. (2008) studied this question.
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