期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 68, 期 8, 页码 7693-7696出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.2998764
关键词
Inverters; Zero voltage switching; Inductance; Topology; Inductors; Power generation; Switching frequency; Current supplies; resonant inverters; zero-voltage switching (ZVS)
This research presents a Class-E inverter design that achieves constant output current and ZVS over a load range by combining with a trans-susceptance network. The tradeoffs between the output current value, effective load range, and input current ripple are discussed. The effectiveness of the design is validated in experiments.
A Class-E inverter with finite input inductance for constant output current and zero-voltage switching (ZVS) over a load range is presented, by combining a Class-E inverter (designed to generate a constant voltage) with a trans-susceptance network (transfers voltage to current and keeps ZVS). Both switching frequency and duty cycle are fixed under load variation. The tradeoffs between the output current value, the effective load range, and the input current ripple are discussed. Same output power capability as the optimum condition in the traditional Class-E inverter is achieved. The expectations were validated by a design switched at 6.78 MHz with 10-V input, 1.4-A output, and 12.6-W maximum output power. ZVS is maintained with 16% output current varying over a 10:1 output power range.
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