Consider the circuit shown. For the diode, assume the piecewise linear model (ba
ID: 1797260 • Letter: C
Question
Consider the circuit shown. For the diode, assume the piecewise linear model (battery plus resistance model) with a forward voltage of 0.7V and rD of 20 .
(a) Plot the output voltage for 1 cycle after the circuit comes to a “steady state”. What will be the average voltage at the output then?
(b) Now, assume that after the circuit is in steady state, the magnitude of the input triangular wave is reduced to 5V peak (i.e., +5V positive peak and 5V negative peak). Plot the output voltage for 1 cycle after it reaches a new steady state. What will be the average voltage at the output then?
Explanation / Answer
a. every time when the wave form is positive, the diode will turn on and cause it to go lower.... so eventually, when it reaches steady state, it will be the same wave form, (same amplitude) but it will be shifted down such that the peak is at 0.7 V the diode turn on voltage. the diode will just always be off. b. same thing, amplitude is preserved to +5/-5V centered such that peak is 0.7 V.