鉛酸電池過放問題

2009-11-29 11:04 pm
如果我的鉛酸電池 12v 1.2A 想推動步進馬達 5v 要怎樣做降壓呢?

回答 (2)

2009-12-01 1:03 am
✔ 最佳答案
用 IC LM7805 、或用 LM317 降壓穩壓便可, 如電流不夠應用,另加功率管可也。

快、靚、正。

2009-12-02 8:41 am
Very simple. use 1 W diodes to drop the voltage. Each diode drops about 0.6 volt
Just use 11 or 12 diodes connected in series and you can have 6.6 - 7.2 voltage drop.

Diodes are cheap, cheap, cheap.


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