由于采用了一种新型的低损耗无源缓冲电路，开关管和主二极管的电流电压应力较小，并降低了能量损耗，提高了工作效率。
Since the novel low-loss passive snubber circuit is used, the low current and voltage stress, low energy loss and high efficiency properties are achieved.
电视机电源要求非常低的纹波电压，过去电视机所采用的是大的无源rc缓冲电路，使电视机的电源效率比较低下。
The television power supply demands low ripple voltage, and the passive rc buffer circuit used in television before, decreased the power effect.
具有共振直流环节的电压型逆变器是在传统的PWM硬件开关电路上加一个共振环节，构成高频、无开关损耗电压型逆变器。
Adding a resonance link to the traditional PWM inflexible switching circuit, a voltage-source inverter of high frequency and no switching less was formed.
对无直流电压传感器的原理进行了详细的分析，并进行了仿真，结果证明了原理电路的可行性。
It is of advantage to reduce size and cost. The principle of the DC sensorless PFC circuit is analytically investigated. Then the feasibility is verified by some simulation.
对无直流电压传感器的原理进行了详细的分析，并进行了仿真，结果证明了原理电路的可行性。
It is of advantage to reduce size and cost. The principle of the DC sensorless PFC circuit is analytically investigated. Then the feasibility is verified by some simulation.
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