Zero Crossing Detector (ZCD): Comparator circuit using 741 op amp


Posted on Feb 6, 2014

Zero crossing detector(ZCD) is a voltage comparator that switches the output between +Vsat and Vsat (Vsat: Saturation voltage almost equal to 14V) when the input crosses zero reference voltage. Then what is a comparator In simple words comparators are basic operational amplifier circuits that compare two voltages simultaneously and switches th


Zero Crossing Detector (ZCD): Comparator circuit using 741 op amp
Click here to download the full size of the above Circuit.

e output according to the comparison. We can say zero crossing detection circuit is a comparator example. We will discuss in detail about comparator in our upcoming articles. Inverting zero cross detector circuit schematic using op amp 741 IC is shown below along with working, input output wave forms. ZCD circuit can be used to check whether the op-amp is in good condition. Zero crossing detectors can be used as frequency counters and for switching purposes in power electronics circuits. ZCD is a basic op amp circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Xor-gate-up-down-counter
    Wien-Bridge Oscillator
    high gain antenna 43dB amplifier circuit
    Electronic Mini Projects
    Interfacing Electronic Circuits to Arduinos
    SMD FM Transmitter
    duracell cpu monitor
    One transistor code lock
    Sp6126 Zeta Regulator For Led Driver 10v-18 Input To 0.3a Output
    serendipity
    C64 VICE Front-End
    LED Lighting For Dual-Filament Lamps
    Bandwidth broadband linear detector circuit schematic of 10MHz



    Top