关于测试OVP的方法探讨?

oh,maybe i can do something for this;
but my system now can not use chinese ;
so i have to use english;
(1) OVP mean over voltage protection ;
(2) if you want to test OVP value,
just stop the feedback circuit;
so,in order to stop it ,there are several methods;

oh,maybe i can do something for this;
but my system now can not use chinese ;
so i have to use english;
(1) OVP mean over voltage protection ;
(2) if you want to test OVP value,
just stop the feedback circuit;
so,in order to stop it ,there are several methods;

OVP在有的电路有特殊的回路起到OVP的作用,我见过的是有的加到二次测,也有加到一次测得.
    
    如果只把反馈断开,假如我有两路输出,是只断一路的呢 ?还是两路都断?测试结果好像有一定的差距.

    谢谢