电源模块的作用是将5v的输入电压转化为3.3 V和1.8 V输出，为系统供电。
The power module changes 5v input power into 3.3v and 1.8v, for supply the system energy.
从电源供电回路、信号输入通道、地线、通讯网络等方面对有关的电磁兼容进行了研究。
The electromagnetic compatibility about the power supply circuit, the input channels of signal, the earthing and the communication network is also researched.
设计开发的电除尘器电源控制器采用ARM9系列STR912微控制器作为主控芯片，供电电源及信号输入输出模块采用光耦隔离设计方案。
Power controller adopts STR912 of ARM9 series as microcontroller, and USES the technique of optical coupling isolation within the input, output and power supply module.
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