Because of the emphases research of magnetic bearing at home and abroad is DC active magnetic bearings (AMBs) at present, and the cost of DC power amplifiers is much higher than ac power converters.
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公司生产电力逆变器,把太阳能生成的直流电源转换为使用最多最需要的交流电源。
The company manufactures power inverters necessary to convert the DC power generated by solar panels into the ac power required for most USES.