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可调直流稳压电源电路模块设计及工作原?/h3>
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<span>文章出处?a href=""><a href="http://cfdz.nsw888.com">深圳市晨飞电子有限公?/a></a></span><span>网责任编辑：<a href="http://cfdz.nsw888.com">NSW</a></span><span>作者：<a href="http://cfdz.nsw888.com">NSW</a></span><span>人气?span
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<p> 首先，我们先来了解可?a href="http://www.chenfeipower.com ">直流稳压电源</a>电路的模块设计是怎样的，本电路通过简单的电路结构能够实现可调的直流稳压电源，并且具电压指示，输出直流电压范围??0V?/p>
<p align="center"><img alt="可调直流稳压电源电路? src="http://www.hengliuyuan.net/upfiles/2015/0602/image/20150602054138_55090.jpg" width="609" height="219" /></p>
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<p> 可调直流稳压电源电路的工作原理：</p>
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<p> 本电路通过变压器T?20V的交流电压加在一次侧W1后，在二次侧W2和W3分别得到35V?V的交流电压，二次侧W2端通过二极管VD1～VD4整流、电容器C1、C2滤波后输入到IC三端集成稳压电路的输入端，通过由IC稳压集成电路、电阻器R1和电容器 C4输出35V的直流电压。二次侧的W3线圈输出?V的交流电压通过二极管VD5、电容器C3、电阻器R2和稳压二极管VS输出一?1.25V的负电压作为辅助电源?/p>
<p> </p>
<p> 变阻器RP加在IC集成电路的控制端，通过调节变阻器RP能够使输出端输出0~30V的直流电源。IC选用LM317三端稳压集成电路;R1、R选用1/2W型金属膜电阻?C1、C3选用耐压分别?0V?0V的铝电解电容器，C2、C4选用CD11—16V电解电容?VD1~VD5选用IN4007硅型整流二极?VS选用IN4106?CW60硅稳压二极管;RP可用WSW型有机实心微调可变电阻器;T选用10W、二次侧电压?5V?V的电源变压器?/p>
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