Labappara scientific instrument
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Export date: Sat Apr 20 11:10:23 2024 / +0000 GMT



Operational Amplifier As Window Detector & Zero Crossing Detector

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Product Description

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

 

Product added date: 2018-06-27 15:30:21
Product modified date: 2018-06-27 15:30:34

Export date: Sat Apr 20 11:10:23 2024 / +0000 GMT
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