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  ติดต่อลงโฆษณา [email protected] หรือโทร. 081-811-1138 หรืออ่านรายละเอียดเพิ่มเติม คลิกที่นี่

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<p>[QUOTE=&quot;oetanoojj, post: 280297, member: 39076&quot;]แอบไปเจอมา ก็เลยเอามาฝากๆกันคับไม่รู้มีประโยชน์ป่าว ลองใช้กันดูคับ<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie5" alt=":confused:" unselectable="on" unselectable="on" /> </p><p>คงต้องออกแบบให้เข้ากับรถเองอาคับ</p><p><br /></p><p><br /></p><p>The circuit, is a comparator, can measure with step of 1Volt, the voltage of battery of car. The clue of voltage become after comparison of voltage of battery, that is applied in the inverting inputs of amplifiers, with voltages of reference that are produced by a Zener D1, the value of which is such so that it present good thermic stability. With the RV1, we regulate the gradation of voltage that we want. The optical clue become from four Led. </p><p>&nbsp;</p><p>R1=1K2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; R2-3-4=680R&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; R5=15K</p><p>R6=10K&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; R7-8-9-10=1K&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; D1=5V6 /0.5W Zener</p><p>D2-3-4-5=LED&nbsp; &nbsp;&nbsp; IC1=<span style="color: darkorchid">LM324</span>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; RV1=10K trimmer</p><p><br /></p><p><span style="color: DarkOrchid">LM324 QUADRUPLE OPERATIONAL AMPLIFIER [105kb]</span>[/QUOTE]</p><p><br /></p>

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