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[摘要] 介紹了常规PWM电路和移相式PWM电路的结构和基本工作原理,详细阐述了移相式PWM电路中开关管如何实现零电压软开关,同时介绍了一种简单的信号延迟电路,并说明了其工作原理。最后给出了该电路试验结果和测试波形。
[关键词] 软开关 移相式 PWM电路 零电压开关 延迟电路
[Abstracts] This paper introduces the circuit diagram and basic principle of the normal PWM circuit and the phase-shifting-control PWM circuit, and it expatiates how to realize switch in the zero volt of the phase-shifting-control PWM circuit. In addition, the paper introduces a sort of simple delay circuit, and it explains the principle of the circuit. The paper lay out the experimental results and the test wave of the circuit.
[Keyword] Soft-Switch Phase-Shifting-Control PWM Circuit Switch in the zero volt Delay circuit
[关键词] 软开关 移相式 PWM电路 零电压开关 延迟电路
[Abstracts] This paper introduces the circuit diagram and basic principle of the normal PWM circuit and the phase-shifting-control PWM circuit, and it expatiates how to realize switch in the zero volt of the phase-shifting-control PWM circuit. In addition, the paper introduces a sort of simple delay circuit, and it explains the principle of the circuit. The paper lay out the experimental results and the test wave of the circuit.
[Keyword] Soft-Switch Phase-Shifting-Control PWM Circuit Switch in the zero volt Delay circuit