GATE EC 2023 Set 1 — Question 40
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Analog Circuits → Diode Circuits → Clipping Circuits
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Question
In the circuit shown below, and are silicon diodes with cut-in voltage of . and are input and output voltages in volts. The transfer characteristic is

Correct answer
(A) [figure]
Solution
The diodes and are silicon diodes with a cut-in voltage . The output is connected to a source through a resistor.
1.When both diodes are OFF, no current flows through the resistor, so .
2. turns ON when . Substituting , we get . When is ON, .
3. turns ON when . Substituting , we get . When is ON, .
Thus, for . For , increases linearly with (slope 1). For , also follows with a shift. This matches the graph in option (A).Continue learning with Success Tracker
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