Question

Which of the following is not true regarding clamper?

(a) A positive clamper adds a positive DC voltage

(b) A clamper can also be called as a re-inserter

(c) To reduce tilt, reduce the RC value

(d) Negative clamper will clamp the positive peak of output to the reference voltage

The question was posed to me during an internship interview.

Asked question is from Clamper Circuit topic in chapter Diode Circuit of Analog Circuits

Answer 1

The correct answer is (c) To reduce tilt, reduce the RC value

Explanation: Clamper is called a re-inserter since it adds DC voltage to wave, inserts DC. Also, a positive clamper adds a positive DC voltage, shifting the wave up, and vice versa for the negative clamper. However, to reduce the tilt in the output, RC should be large, not small.