uploaded image2.28 Let Vr=0.Thesecondaru voltage is givτn by vs=Vssin(wt),where Vs=24V.

The Zender diode has parameters Vz=16V atIz=40mA and rz=2Ω.

Determine Ri such that load current can vary over the range 40<=IL<=400mA with Iz(min)=40mA

and find C such the ripple voltage is no larger than 1V   

2.38 A car's radio may be subjected to voltage spikes induced by coupling from the ignition system.

Pulses on the order of ±250V and lastinf for 120us mayexist.

Design a clipper circuit using resistors,diodes,and Zenzer diodes to limit the input voltage between 14V

and -0.7V.Specify power ratings of the components

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