在彩色电视机中,为了防止显象管过流过压造成X射线对人体的伤害,为了保护行输出晶体管、行逆程变压器和开关电源的开关管或开关电源的集成电路不因过流过压而损坏,常设有各种形式的保护电路。本文结合国内拥有 In a color TV, in order to prevent X-ray damage to the human body caused by over-current and over-voltage of the kinescope, the integrated circuit for protecting the switching transistor or switching power supply of the line output transistor, the line retrace transformer and the switching power supply is not over-currented. Pressure and damage, often with various forms of protection circuit. This article combines domestic ownership