请问如何改进二极管稳压电路的问题

2025年03月14日 20:10
有3个网友回答
网友(1):

继电器端电压13~15V证明稳压管根本不曾导通,放不放稳压管没有影响。
应该减小串联电阻的阻值提高供电电流,才能得到符合要求的电压。
如果换用同型号的12V继电器,它的线圈电阻只有24V的1/4,得到的电压更小,不是烧掉的问题,而是电压更不够用。如果要换,应该换成36V或者48V的继电器,分到的电压就可以够用了。由于这种电源电阻很大,近似恒流源性质,串联这样大的电阻能提供的电流不会超过40mA,不应该用电压概念,而应该用电流概念理解,绕组的额定电压越高,需要的电流越小。
另外,继电器线圈电压适应范围较大,无需使用稳压。

网友(2):

没有人这么设计损耗太大了,买一个24伏的电源接上就可以了

网友(3):

继电器线圈分交直流,不能混淆。

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