AC220v降压9v芯片

220v变9v直流电路图

字号+ 作者:刘程13242610001 来源:深圳振邦微科技 2020-09-03 09:51 我要评论( )

交流220v变直流9v最简单的电路是怎样?要求输出的9v电流不太于500ma,并且要长期工作,要稳定!要用什么的电子元件,怎样接法?另,电脑机箱内的12v电源,要变9V的500ma,又是怎样的电路?

交流220v变直流9v最简单的电路是怎样?要求输出的9v电流不太于500ma,并且要长期工作,要稳定!要用什么的电子元件,怎样接法?另,电脑机箱内的12v电源,要变9V的500ma,又是怎样的电路?

用一个非隔离的220v转直流9v的降压芯片就可以了,不需要用体积大的变压器,输入电压可以从45v-265v,通过FB电阻调节输出电压(要输出9v以外的电压改变电阻就可以了),220v转直流9v的降压芯

片最大的输出 电流能到700MA,也可以改变限流电阻限流它的输出 电流,限在500MA.芯片的外围也简单,过认证出口完全没有问题。我们提供全程的技术协助。
交流220v转9v直流500MA


What is the simplest circuit for changing AC 220v to DC 9v? The 9v output current required is not less than 500ma, and it needs to work for a long time and be stable! What electronic components are used and how to connect them? In addition, the 12v power supply in the computer case needs to be changed to 9V 500ma. What kind of circuit is it?
 
Use a non-isolated 220v to DC 9v step-down chip, no need to use a bulky transformer, the input voltage can be from 45v-265v, the output voltage can be adjusted through the FB resistor (you can change the resistance if you want to output a voltage other than 9v ), 220v to DC 9v step-down core
 
The maximum output current of the chip can reach 700MA, and the current limiting resistor can also be changed to limit its output current, which is limited to 500MA. The periphery of the chip is also simple, and there is no problem with the certification export. We provide full technical assistance.

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