The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
By comparing the characteristic of different technology, the influence on unit stable running by high voltage frequency conversion is summarized. Also the development tendency is predicted.
对不同形式的高压变频技术特点进行了比较，总结了高压变频装置对机组稳定运行的影响及高压变频技术的发展趋势。
We also choose the type of stable voltage direct current and frequency conversion motor, and design the hardware circuit of the sub-systems.
根据控制要求对直流稳压电源、变频器等其它硬件进行了选型，并对系统各部分硬件电路进行设计。
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