分析了全桥逆变器功率变压器产生直流偏磁的机理；
The cause of the DC bias of the main transformer in the full bridge inverter has been analyzed.
磁光晶体光纤型全光纤磁光开关的设计与分析。
The design and analysis of all-fiber magneto-optic switch made of magneto- optic crystal fiber.
针对SPWM全桥逆变器中存在的直流偏磁现象，提出了数字PI电压积分调节方法。
A digital PI voltage integral regulating method, as proposed in the paper is directed at overcoming the flux imbalance phenomena in the SPWM full-bridge inverter.
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