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A car stereo working at stabilized volta...

A car stereo working at stabilized voltage supply of 9V DC and has a Zener diode of 9V , 0.25 W . But the voltage supply inside the car is 12 V DC .
The boy approached you to get help .
a. Which mode of bias will you suggest to connect Zener diode as voltage regulator ?
b. Draw a circuit diagram of voltage regulation to help the boy .
c . Which device is essential for circuit diagram ? Find the value of that device .
[ Hint . Current through the load , `I_(L) = 0`]

Text Solution

Verified by Experts

a . Reverse bias
b.
c. Resistance : R can be calculated using the equation `V_(i) = IR + V_(Z) ( R = 120 Omega)`
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