Question

Q1: Use the following Data to Design the circuit Below: RL RL (2) Vo (with) (V) Vo (Without) 300 0.6 0.6 800 1.45 1.45 1.3k 2.167 2.167 7.8k 5.1 . 24 Open circuit 5.5 0 6 1 a) Design the circuit by Finding the value of Rs, Vs, and Vz. b) Zener at RL = 7.8k 2 acts as..........

Answer 1

From the observation table it is clear that if RL varies from 300 to 1.3K there is no variation in voltage across RL with or with out diode , i.e,, diode is in open condition represents infinite resistance.

As RL increases beyond 7.8K results variation of voltage across RL with and with out zener diode hence it goes to break down.

But for open circuit and 7.8K the voltage Vo varies showing some internal resistance for Zener diode .

With this analysis the solution is as follows

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