穩壓IC 7805 1.2(輸入.接地)腳接反? - 喇叭音響

By Hamiltion
at 2010-04-18T23:49
at 2010-04-18T23:49
Table of Contents
想請問版上的前輩們!
如果7805 輸入端與接地端反接了會如何?
因為不小心將變壓器(EI變壓器非橋式)裡的兩個整流二極體裝反,
這樣應該使得7805的輸入與接地電壓相反了?當下7805發燙,然
後我馬上將電關掉,把二極體裝好,後來正常運作。
想請問在1.2腳位接反的情況下,穩壓IC輸出端是不是就不會有電流
輸出了?因為輸出端還接著USB DAC,超怕會有零件受損...0.0
--
如果7805 輸入端與接地端反接了會如何?
因為不小心將變壓器(EI變壓器非橋式)裡的兩個整流二極體裝反,
這樣應該使得7805的輸入與接地電壓相反了?當下7805發燙,然
後我馬上將電關掉,把二極體裝好,後來正常運作。
想請問在1.2腳位接反的情況下,穩壓IC輸出端是不是就不會有電流
輸出了?因為輸出端還接著USB DAC,超怕會有零件受損...0.0
--
Tags:
喇叭音響
All Comments

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