Transistor Characteristic Apparatus Experiment, Physics instrument, general laboratory equipment manufacturers.

Operational Amplifier As Window Detector & Zero Crossing Detector


Categories: , , ,
   

Operational Amplifier As Window Detector & Zero Crossing Detector

Operational Amplifier As Window Detector & Zero Crossing Detector

Comparator is a circuit that produces two output state +V sat and -V sat by comparing theinput signal with a reference voltage. If the input signal is applied to the inverting terminal ofop-amp then for input voltages less than V
ref , the output is equal to +V sat and for inputvoltages greater than v ref , the output voltage is equal to – sat. If the reference voltage is zero,then the comparator can be used as zero crossing detector. If the applied input signal is asinusoid, then for positive half cycle, the output is –  sat and for negative half cycle, theoutput is +V sat thus producing a square wave. That is the zero- crossing detector can be usedto convert a sinusoidal wave form to a square wave.Fig.6.1. Zero Crossing detector

Reviews

There are no reviews yet.

Be the first to review “Operational Amplifier As Window Detector & Zero Crossing Detector”

Your email address will not be published. Required fields are marked *