Battery status indicator circuit diagram


Posted on Mar 28, 2007

741 op amp can be used as a voltage comparator. Non-inverting input and a zener control source. The reference voltage is 5.1V. R2 can adjust the in-phase input voltage becomes


Battery status indicator circuit diagram
Click here to download the full size of the above Circuit.

half the supply voltage. When the supply voltage is higher than 10.2V, the light emitting diode will not light up.




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