1, 在式例电路中,EAP为何是接光耦,当光耦导通时,EAP电压为0,而EAN又接EAOUT,此时空载比较器不是也会动作?RAMP似乎没有作用?
2,当需要输出电压可调时,能否将EAP接设定值,EAN接取样值,EAOUT空?
请赐教
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
YH,
這部份是提供一個參考電壓給整個環路. 其中一款是TL431. 見附文件. 配合光藕. 這是電源設計上基本的補償電路 (compensation loop design)