期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 30, 期 4, 页码 1907-1913出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2014.2330811
关键词
High-frequency/low-frequency double modulation; resonant inverter; saturable transformer; self-oscillating inverter; zero-voltage switching (ZVS)
资金
- Tunisian Ministry of High Education and Research [LSE-ENITLR 11ES15]
This paper proposes a simple power control scheme in order to convert the conventional nonadjustable self-oscillating half-bridge series-resonant inverter into an adjustable one. The proposed topology, based on a self-oscillating structure, can automatically ensure the turning on and the turning off of the switches without any external control. A simple modification in one of the gate drivers side circuit allows one to adjust the output power without compromising the simplicity, reliability, and low cost, which characterize the self-oscillating half-bridge inverter. Moreover, this topology achieves a stable and efficient zero-voltage switching over the entire operating range with a constant switching frequency; as a consequence, the inverter overall efficiency is significantly improved. Experimental results are proposed to validate the analysis and to demonstrate the performance of the proposed control scheme.
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