OPERATIONAL AMPLIFIERS AND DIODESSample Problems - Dr. Aydın˙I. Kars¸ılayan1.In the circuit below, assume that the opamps are ideal, and their saturation voltages are less than the reversebreakdown voltage of the diode (|VSAT|<|BV|).(a)Using the constant-voltage-drop model for the diode, findVoas a function ofVi.(b)Sketch theDCtransfer characteristics (Vovs.Vi).(c)Verify your results using Pspice. For the diode, use the model D1N4002. Provide schematics and all necessaryplots with measurements.U2U14kR13kR22kR31kR46kR5D10VoVi02.Design AC adapters using:(a)A single-ended transformer with a bridge rectifier(b)A center-tapped transformer with a full-wave rectifierwith the following specifications:Output voltage (Vo)5 VMaximum ripple10%Load current (IL)0 – 500 mAFor each case, determine the minimum specs for the diode (ID,max,ID,avg, reverse breakdown voltage), primary/secondary ratio of the transformer (n), and the capacitance value. Show all your calculations. Simulate your designs
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