Question: 1 . Design a voltage regulator using the circuit shown below. The voltage regulator is to power a car radio at ( mathrm

1. Design a voltage regulator using the circuit shown below. The voltage regulator is to power a car radio at \(\mathrm{VL}=9\mathrm{~V}\) 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).
1 . Design a voltage regulator using the circuit

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