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In this paper, a half-bridge single-stage power converter is used as a fundamental study object. The half-bridge single-stage power converter proposed in this thesis has inherent gift of high power factor correction (PFC) even when the PFC inductor operates in discontinuous conduction mode (DCM). It is revealed that if the proposed converter is operating in DCM, it not only inherently has high power...
This paper proposed a high-efficiency battery charging and discharging system for high-capacity single-body Li-ion battery. This system can work as battery formation system or battery test system. The main system structure includes a single-phase bi-directional PWM rectifier, dc-link, half-bridge converter with current-doubler synchronous rectifier as charging unit and interleaved pull-push converter...
A novel control method used in the half-bridge single-state power converter is presented in this paper. This proposed control scheme is to enlarge load regulation range in discontinuous conduction mode (DCM), while the new duty pattern will be derived to perform the variable-frequency control. Compared to the conventional control methods, the proposed duty cycle pattern within a switching period is...
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