A string of three diodes is used to provide a constant voltage of about 2.4V. Input power-supply changes +1V as shown in figure. Use Vr-25 mV. (30 pts) (a) Draw corresponding small signal model (5pts)...

A string of three diodes is used to provide a constant voltage of about 2.4V. Input power-supply changes +1V as shown in figure. Use Vr-25 mV. (30 pts) (a) Draw corresponding small signal model (5pts) /30 10 1 V R=1 kn R= I kn (b) Calculate ra in small signal model (5 pts) 1.Jo-5.8K +mA VT td I 25 3. 57 for 3rd3x 3-57 lo.71Q t (c) Calculate the change (Av) in the regulated voltage caused by +10 % change in the power-supply voltage when no load resistance is connected (10 pts) A VS 2.4 v AVAVS -1071 Pu (d) Calculate the change (Av.) in the regulated voltage caused by connection of a R-1k2 load resistance. (10 pts) AM w NDH

Aug 11, 2022

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A string of three diodes is used to provide a constant voltage of about 2.4V. Input power-supply changes +1V as shown in figure. Use Vr-25 mV. (30 pts) (a) Draw corresponding small signal model (5pts)...

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