transistors Low power low voltage slow (0.1Hz) oscillator

Posted on Feb 6, 2014

The power supply varies, and the circuit must operate on under 10uA of current (not counting charging the cap). It triggers an SCR every 10-30 seconds as long as the power supply is above 1. 8VDC, and must operate across a range of 1. 8 and 7. 0 VDC. The timing isn`t critical - around 10-30 second intervals to trigger the SCR is fine (a short positiv

transistors Low power low voltage slow (0.1Hz) oscillator
Click here to download the full size of the above Circuit.

e pulse). The lower the voltage, the longer the time interval is fine. The kicker is the low current requirement (10uA or less), low voltage requirement (1. 8V) and, as always, low cost (ie, replacing a 10 cent PUT with a 30 cent microcontroller would not be ideal).

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Phase sequence detector
    low noise receive aerial
    cd4047 based squarewave inverter oscillator
    3V to 24V Variable Power Supply
    TV transmitter circuit
    ultrasonic receiver
    mini drill speed regulator
    lantern dimmer flasher circuit diagram
    NiCd Simple Smart Nicad Battery Charger circuit
    27MHz CB Amplifier Circuit
    pll circuit
    Functional Block Diagram for AD524 pin and internal circuit
    INA321 OPA340 composed output buffer circuit 322