Voltmeter with LED for car battery PCB


Posted on Feb 5, 2014

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


Voltmeter with LED for car battery PCB
Click here to download the full size of the above Circuit.

the RV1, we regulate the gradation of voltage that we want. The optical clue become from four Led.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Encoder-decoder
    Fax Mate Circuit
    My Arduino In Circuit Programmer
    1.5V to 5V/12V DC/DC Converter with LT1073
    USB Powered Stereo Computer Speaker
    TB6556FG 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
    Features and Power Control Circuit
    REMOTE TV VOLUME CONTROL
    555 meter circuit diagram of a simple cavers



    Top