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The voltage regulator in the circuit is to power a car radio at a load voltage of VL = 9 V from an automobile battery whose voltage may vary between 11 and 13.6 V. The current in the radio will vary between 0 (off) to 100 mA (full volume). Use the ideal equivalent circuit for the zener. a. Find Ri b. IZK and IZM if IZK = 0.1 IZM. c. Simulate the circuit in LTspice using the diode model specifying the appropriate breakdown voltage.

The voltage regulator in the circuit is to power a car radio at a load voltage of VL = 9 V from an automobile battery whose voltage may vary between 11 and 13.6 V. The current in the radio will vary between 0 (off) to 100 mA (full volume). Use the ideal equivalent circuit for the zener. a. Find Ri b. IZK and IZM if IZK = 0.1 IZM. c. Simulate the circuit in LTspice using the diode model specifying the appropriate breakdown voltage.

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The voltage regulator in the circuit is to power a car radio at a load voltage of V L = 9 V from an automobile battery whose voltage may vary between 11 and 13.6 V . The current in the radio will vary between 0 (off) to 100 m A (full volume). Use the ideal equivalent circuit for the zener. a. Find R i b. I Z K and I Z M if I Z K = 0.1 I Z M . c. Simulate the circuit in LTspice using the diode model specifying the appropriate breakdown voltage.

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