歐姆龍 CJ1W-IC101 模塊現(xiàn)貨
⑶電源電壓要與代換后的IC相符,如果原電路中電源電壓高,應(yīng)設(shè)法降壓;電壓低,要看代換IC能否工作。
⑷代換以后要測(cè)量IC的靜態(tài)工作電流,如電流遠(yuǎn)大于正常值,則說(shuō)明電路可能產(chǎn)生自激,這時(shí)須進(jìn)行去耦、調(diào)整。若增益與原來(lái)有所差別,可調(diào)整反饋電阻阻值;
⑸代換后IC的輸入、輸出阻抗要與原電路相匹配;檢查其驅(qū)動(dòng)能力。
⑹在改動(dòng)時(shí)要充分利用原電路板上的腳孔和引線,外接引線要求整齊,避免前后交叉,以便檢查和防止電路自激,特別是防止高頻自激;
[7]在通電前電源Vcc回路里再串接一直流電流表,降壓電阻阻值由大到小觀察集成電路總電流的變化是否正常。
歐姆龍 CJ1W-IC101 模塊現(xiàn)貨
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歐姆龍 CJ1W-IC101 模塊現(xiàn)貨
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歐姆龍 CJ1W-IC101 模塊現(xiàn)貨
考慮到正面垂直光柵需要滿足一定的安全距離,因此其與滑塊之間必然存在一定空間。所以一般會(huì)采用安裝1組水平光柵,從而避免人員在上下件時(shí)處于光柵檢測(cè)的盲區(qū)