期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 26, 期 12, 页码 3896-3907出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2011.2132146
关键词
DC-DC converter; full bridge (FB); high-frequency (HF) transformer link; phase shifting (PS); primary-side phase shifting (PPS); pulsewidth modulation (PWM); secondary-side phase shifting (SPS); zero-voltage switching (ZVS)
This paper presents a feasibility investigation of a zero-voltage switching (ZVS) pulsewidth modulation (PWM) dc-dc converter with secondary-side phase-shifting power control scheme. The ZVS-PWM dc-dc converter treated here can achieve soft commutation in all the power devices under the wide range of output power variation. By the phase-shifting control that is based on the secondary-side rectifier linked with a high-frequency planar transformer, the effective reduction of idling power in the primary-side inverter as well as snubber-less rectifications in the secondary-side rectifier can be actually attained. The essential experimental data obtained from a 100-kHz/2.5-kW prototype are described herein to validate the soft-switching circuit and control scheme, and then the effectiveness of the dc-dc converter is discussed and evaluated from a practical point of view.
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