...了它们与电路参数的关系,定量地给出变换器达到所需PF值的条件,指出当后级Flyback工作在电流断续模式(Discontinuous current mode,DCM)时,储能电容电压不随负载变轻而上升,避免了功率器件电压应力过高的问题。
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当输出滤波电感的电流在一个周期内不连续时，移相全桥PWM变换器就工作在电流断续模式（DCM）。
Phase-shifted full-bridge PWM converters work in discontinuous current mode (DCM), when the current of out-put filter inductor is discontinuous in one switching period.
根据电感上电流的断续情况，开关变换器可以工作在连续导电模式（CCM）和断续导电模式（DCM）。
The switch convertor can work in continuous current mode(CCM) or discontinuous current mode(DCM) according to the current through the inductance.
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