Switching power supply or DC power to AC power through it will be a stable DC voltage source.
开关电源把直流电源或交流电源通过它可以获得一个稳定的直流电压源。
When switching a voltage source to multiple devices, it may become necessary to compensate for voltage drops due to switch resistance.
在将一个电压源切换至多个装置时，则可能必须补偿由于开关电阻引起的压降。
The duty ratios of switches in each switching cycle can be directly obtained by simple calculation using two phases source currents and dc bus capacitor voltage.
只需检测两相电源电流和直流侧电容电压，通过简单计算就可直接求出每个开关周期内各开关的占空比。
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