low voltage high current time delay circuit


Posted on Feb 6, 2014

In this circuit a LM339 quad voltage comparator is used to generate a time delay and control a high current output at low voltage. Approximatey 5 amps of current can be obtained using a couple fresh alkaline D batteries. Three of the comparators are wired in parallel to drive a medium power PNP transistor (2N2905 or similar) which in turn drives a high current NPN transistor (TIP35 or similar)..


low voltage high current time delay circuit
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Amplifier Bridging
    Phase tracking three-phase generator
    Pwm-servo-amplifier
    Logic-pulser
    5v regulated solar cell power supply circuit diagram
    DOGM128 with Arduino Hardware
    STABILIZER POWER SUPPLY 0-30 VDC CIRCUIT
    Simple Field Strength Meter
    Simple One-Wire Touch Detector
    Astable Multivibrator
    LIGHT METER WITH LED READOUT
    MAX668 inverting configuration quadruple pressure DC DC converter power supply



    Top