Question
Download Solution PDFA Schmitt trigger converts slowly varying wave form into
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSchmitt trigger:
Schmitt trigger is a positive feedback comparator circuit that converts the sinusoidal input into a square wave.
The output of a Schmitt trigger circuit is always +VCC or -VCC
When VNI > VI , the output is +VCC
When VNI < VI , the output is -VCC
Working of Schmitt trigger:
Case 1: When Vref > Vin
Vo = +VCC
\(V_{ref} = V_{UTP}=V_{cc}({R_2 \over R_1+R_2})\)
Case 2: When Vref < Vin
Vo = -VCC
\(V_{ref} =V_{LTP}= -V_{cc}({R_2 \over R_1+R_2})\)
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