本课题是对无工频变压器开关电源控制器芯片模块电路的设计与研究。
My project is focused on the design and research of PWM switching power supply control circuitry that requires high efficiency and reliability.
最终查出造成机组事故的根本原因是可控硅励磁装置供电电源无工作状态监视信号及故障报警信号；
The final basic cause that resulted in the failure is no working state monitoring signal and failure warning signal of power supply source of controlled silicon excitation device.
二线无源led现场显示单元是指在不外接直流电源的前提下，实现二线制变送器检测到的工业参数LED现场显示。
On the basis of no outer direct flow power source, tow-wire passive LED local displaying unit realizes LED local displaying of industry parameter which tow-wire transmitter inspects.
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