半桥软开关逆变式焊机原理详解 关键词：半桥主开关；有源辅助开关；零电流开通、零电压关断；零电流/零电压开通；零电流/零电压关断 [gap=1155]Key words: half-bridge switch; auxiliary active switch; ZCS; ZVS; ZCZVS
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但是有源软开关技术因为有辅助开关管的引入，控制电路比较复杂，增加的额外元器件较多，变换器成本增加。
Because of introduction of the additional switch, the control circuit of the converter becomes complex and the amount of the added parts and cost increases.
在有源箝位正激电路中，为了使主开关管和辅助开关管能较容易地实现零电压开通条件，提出了一种改进型有源箝位正激拓扑方案。
To briefly introduce the operating mechanism for the soft switch of the active clamping and forward and flyback combination of ZVS-PWM with the single-end circuit topology.
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