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②由小信号处理电路专用引脚直接对被检测电路进行检测,检测电路和电压翻转电路位于集成电路内部,检测到故障时,由小信号处理电路内部直接执行保护。小信号处理电路执行保护主要有以下途径和方式。(1)关断行振荡或切断行激励信号故障检测电路检测到故障时,电压翻转电路翻转,产生保护控制电压,小信号处理集成电路内部保护电路启动,使行振荡电路停止振荡或切断行激励
② by the small signal processing circuit pin dedicated to be detected directly detected circuit, the detection circuit and the voltage flip circuit is located within the integrated circuit, the detection of failure, the small signal processing circuit directly to the internal implementation of the protection. Small signal processing circuit to implement the protection mainly in the following ways and means. (1) turn off the line oscillation or cut off the line excitation signal fault detection circuit detects a fault, the voltage flip circuit flip to generate protection control voltage, the small signal processing IC internal protection circuit starts, the line oscillation circuit to stop oscillation or cut off line excitation