Drive power of direct current servo motor is be introduced, all kinds of its technology are analyzed, development is pointed out.
介绍直流伺服电机的驱动电源，分析其各种技术，指出了发展趋势。
The design principle and specific process of the pulse width servo amplifier is introduced, which is used to drive direct current motor to work.
介绍一种脉冲调宽型伺服放大器的设计原理及具体过程。
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