-Refer to the figure above. Which of these circuits is known as a peak detector?
A)a)
B)b)
C)c)
D)d)

Question

-Refer to the figure above. Which of these circuits is known as a peak detector?
A)a) 
B)b) 
C)c) 
D)d)

Quizplus · Accepted Answer

C) is known as a peak detector because it consists of a diode followed by a capacitor. This configuration allows the capacitor to charge up to the peak voltage of the input signal, and the diode prevents the capacitor from discharging back through the circuit, thus "detecting" or holding the peak voltage.

-Refer to the Figure Above