Soft switching technique could improve the circumstance of the power switch, reduce the losses and increase the efficiency of the converter.
软开关技术能够有效改善功率开关管的工作环境，降低开关损耗，提高变换器的效率。
Soft switching PWM technique can resolve this problem existing in conventional PWM technique, so it becomes one focus of welding field more and more.
软开关pwm技术能较好地解决传统PWM技术中的问题，越来越成为焊接界所关注的焦点之一。
The efficient approach to solve switching dissipation is to use soft switching technique.
解决开关损耗的有效途径是采用软开关技术。
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