平板电视机电源原理与检修下.pdf

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1、平板电视机电源原理与检修（下）目录第四章三星LJ44‐00132B型等离子屏电源原理与检修............................................................1一节进线抗干扰电路..........................................................................................................21．1电压过高限制电路/防雷击电路..................................

2、...............................................31．2进线滤波电路..............................................................................................................3二节待机5V电压形成电路.............................................................................................

3、...32．1待机5V电路电路启动过程........................................................................................52．2待机5V电路的稳压电路............................................................................................72．3保护电路...................................................

4、...................................................................82．3‐1过载保护...........................................................................................................82．3‐2稳压回路开环保护...........................................................................

5、................82．快益点上海3‐3过温保护...........................................................................................................82．3‐4过压保护电路...................................................................................................9三节功率因素校正电路.............

6、.........................................................................................93．1功率因素校正电路开关控制电路............................................................................103．2功率因素校正电路.............................................................................

7、.......................113．3功率因素校正电路保护电路....................................................................................133．3‐1过电压保护（OVP）......................................................................................133．3‐2欠电压保护（UVP）/开环保护........................

8、............................................133．3‐3过流保护（OCP）.............................