Comments on: 12v Battery Voltage Monitor circuit with LM339 comparator http://www.free-circuit.com/12v-battery-voltage-monitor-circuit-with-lm339-comparator/ Circuit diagram for Power supply,Battery Charger,Power amplifier,Inverter,Converter Mon, 23 Jan 2012 06:07:55 -0700 http://wordpress.org/?v=2.8 hourly 1 By: BDA http://www.free-circuit.com/12v-battery-voltage-monitor-circuit-with-lm339-comparator/comment-page-1/#comment-1417 BDA Thu, 02 Jun 2011 11:59:24 +0000 http://www.free-circuit.com/?p=560#comment-1417 Hello! I'm thinking of building such a battery status monitor for a 12V battery. Unfortunately I know little about electronics. Can you explain how you can calculate the values of the rezistors in order to obtain specific voltage values at which the LEDs light up? Also, how much current is passing through the LEDs? I'm interested in finding out how much power is consumed by the whole circuit because I don't want it to draw too much current from the battery. Thanks! Hello!

I’m thinking of building such a battery status monitor for a 12V battery. Unfortunately I know little about electronics. Can you explain how you can calculate the values of the rezistors in order to obtain specific voltage values at which the LEDs light up? Also, how much current is passing through the LEDs? I’m interested in finding out how much power is consumed by the whole circuit because I don’t want it to draw too much current from the battery. Thanks!

]]> By: Arshed http://www.free-circuit.com/12v-battery-voltage-monitor-circuit-with-lm339-comparator/comment-page-1/#comment-1242 Arshed Thu, 31 Mar 2011 08:31:18 +0000 http://www.free-circuit.com/?p=560#comment-1242 Arshed jan BS Electronic Engineer best circuit for making battery moniter as will as automatic battery charger. Arshed jan
BS Electronic Engineer
best circuit for making battery moniter as will as automatic battery charger.

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