DIGITAL FUEL GAUGE


Posted on Feb 6, 2014

This circuit uses a digital voltmeter (formed from IC1 and IC3) to display fuel quantity as a percentage of a full tank. In order to work with two kinds of fuel sensors, low resistance = full. Where higher resistance full, IC2 forms a dc amplifier that has both inverting (path A) or noninverting (path B) outputs, and calibration adjustments for each path..


DIGITAL FUEL GAUGE
Click here to download the full size of the above Circuit.




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