voltage to frequency converter icl8038


Posted on Feb 5, 2014

This was a small circuit made for driving an Impact counter. The heart being ICL8038. It must have been a Motor driving a Conveyor, the motor has a feedback attachment called Tachogenerator. Only part of the circuit is shown here. See the image of product here Tacho Counter. The configuration is derived from the Application Notes of Intersil. T


voltage to frequency converter icl8038
Click here to download the full size of the above Circuit.

he Voltage from Tachogenerator is Measured on a DPM-DVM and also fed to this circuit after attenuation and filtering. The square pulses of 8038 is used to derive a Logic pulse train for a CD4040. The CD4040 works of 0 and 12V. The above circuit is on +12 and -12. That is the reason R10-R15-Q1 are used. The pulses are 0-12V pulses. The Zero is Virtual like the Virtual Ground in low current power supplies.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    High-speed-sample-and-hold
    Positive-triggered-touch-circuit
    PIC16F628 Digital Clock Timer circuit and explanation
    Build an IR Beam Breaker
    LED outline display control unit cipher scheme on the basis of the one-chip computer
    Audio Level Meter (VU Meter)
    radio circuit diagram
    Automatic water tank level controller motor driver circuit
    A dark detecting circuit for your jack lantern
    Constituted by the PGA103 programmable gain instrumentation amplifier circuit diagram
    Auto Cutter mill circuit



    Top