采用双极调制方式单周控制APF补偿后的电源电流中存在直流分量。

There are DC off-sets in the compensated source current of the APF with one-cycle control under bipolar modulation.

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结合双极工艺和开关稳压电源的优点，本文设计了一款高效率开关稳压电源XD 6912。

Combined with the advantages of bipolar process and SMPS, a high efficient SMPS XD6912 is designed.

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车载90 V双极开关电源。

On-board 90v bipolar switching power supply.

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