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關(guān)于測試OVP的方法探討?

關(guān)于測試OVP的方法探討?
最近要求測試OVP,由于以前沒有測過,所以不知道從何下手.
翻了一些資料,知道OVP的意思就是當(dāng)其中的一路或者多路輸出出現(xiàn)瞬間或者長時間的開路時,OVP才會被激活.其作用就是限制電路 的輸出以避免元件被損毀.
可是如何才能實(shí)現(xiàn)到上述情況呢?請各位同仁多多幫忙.
謝謝!
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fortunate
LV.4
2
2005-09-06 20:54
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;
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fortunate
LV.4
3
2005-09-06 20:54
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;
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nedved111
LV.6
4
2005-09-07 15:38
@fortunate
oh,maybeicandosomethingforthis;butmysystemnowcannotusechinese;soihavetouseenglish;(1)OVPmeanovervoltageprotection;(2)ifyouwanttotestOVPvalue,juststopthefeedbackcircuit;so,inordertostopit,thereareseveralmethods;
OVP在有的電路有特殊的回路起到OVP的作用,我見過的是有的加到二次測,也有加到一次測得.
    
    如果只把反饋斷開,假如我有兩路輸出,是只斷一路的呢 ?還是兩路都斷?測試結(jié)果好像有一定的差距.

    謝謝
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