2. (8 points) For the circuit shown here with

Vin(t)=(3 V)sin(27 60Hz t) and using a

constant-voltage model with Von = 0.7 V for

D1 and D2 and assuming the Zener voltage is

Vz = 2.5 V, what are the following values?

(a) the minimum output voltage,

(b) the maximum output voltage, and (c) the

length of time that D1 is on each cycle.

R1 D1 D2

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Vin

Vout

3. (8 points) Repeat the last problem with R1 = 102, D1 parameters of Von = 0.7 V and

Ron = X3ID/100 S2, and assuming the Zener diode has an internal series resistance of 10

and a forward on voltage of Von = 2.5 V, equal in magnitude to its Zener voltage.