Economical and practical three-phase rectifier voltmeter circuit diagram

Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin

GW MB10F 0.8A 1000V rectifier bridge

TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

$Src="http://i.bosscdn.com/blog/nophoto.gif" /> Buy a magnetoelectric low-voltage DC voltmeter on the market, the range is not limited. Find a potentiometer with a large resistance value (about 500kÎ©) in series with the voltmeter, and start to adjust the RP to the maximum value; use a rectifier bridge (breakdown voltage should be â‰¥1000V), and connect the AC input side to the inverter. At the output end, the DC output side is connected to the series circuit of the voltmeter and the potentiometer, as shown in the figure below; the inverter is powered on and the output frequency is adjusted to 50Hz. At this time, the output voltage of the inverter should be displayed as 380V; adjust the potentiometer RP slightly, so that the pointer of the voltmeter refers to the maximum range, then the maximum range of the voltmeter is 380V; measure the resistance of the potentiometer, replace it with a fixed resistor Potentiometer and fit into the meter. </p> </div> </div> <div class="tech-detail-share">  <div class="bdsharebuttonbox"> <a href="#" class ="bds_qzone" data-cmd="qzone" title="Share to QQ space"></a> <a href="#" class="bds_tsina" data-cmd="tsina" title="Share to Sina Wei Bo"></a> <a href="#" class="bds_weixin" data-cmd="weixin" title="Share to WeChat"></a> <span>Share to:</span> </ Div> <script>window._bd_share_config = { "common": { "bdSnsKey": {}, "bdText": "", "bdMini": "1", "bdMiniList": false, "bdPic": "", "bdStyle": "2", "bdSize": "16" }, "share": {} }; with (document) 0[(getElementsByTagName($

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