A zero voltage switching forward converter topology is presented in this paper. The topology employs an auxiliary circuit. Only a few small rating components and devices are added. The merits of the proposed topology include: lossless switching independent of the input and load conditions, simple control and power circuitry, and ability to operate in either voltage or current mode control. A steady state analysis is presented and the design procedure is illustrated. A 100 W 300 kHz prototype zero voltage switching forward converter is built which shows an efficiency improvement of approximately 5% as compared to a conventional hard switching forward converter.
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机译：本文介绍了零电压开关转换器拓扑。拓扑采用辅助电路。只添加了一些小额额定值和设备。所提出的拓扑的优点包括：无损切换，独立于输入和负载条件，简单的控制和电源，以及在电压或电流模式控制中操作的能力。提出了稳态分析，并说明了设计过程。与传统的硬开关前转换器相比，建立了100 W 300 kHz原型零电压开关转换器，其效率提高约5％。
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