Low Voltage High Current Time Delay Circuit


Posted on Feb 5, 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

    60W Power Amplifier with 2N3055
    5-12V 200mA Regulated Power supply
    Automotive ignition coil
    DC to DC converter electronic schematic
    Lamp-flasher
    Simple Curve Tracer Circuit
    LEGO robotics
    Automotive LED Timing Light
    Infrared Remote Tester



    Top