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प्रश्न
Draw the circuit diagram of zener diode as a voltage regulator and briefly explains its working ?
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उत्तर
Zener diode as voltage regulator
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After the break down voltage, a small change in the voltage across the zener diode produces a large change in the current through the circuit.
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If the voltage is increased beyond the zener voltage, then the resistance of the zener diode drops considerably.
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A zener diode and a resistor are connected to a fluctuating DC supply such that the zener diode is reverse biased.
- When the voltage across the diode tends to increase, the current through the diode rises out of proportion and causes a sufficient increase in voltage drop across the resistor. Therefore, the O/P voltage lowers back to normal.
संबंधित प्रश्न
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Draw labelled graphs showing the input and output voltages.
Consider the following statements (A) and (B) and identify the correct answer.
(A) A Zener diode is connected in reverse bias when used as a voltage regulator.
(B) The potential barrier of the p-n junction lies between 0.1 V to 0.3 V.
Consider the following statements (A) and (B) and identify the correct answer.
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- The potential barrier of p-n junction lies between 0.1 V to 0.3 V.
The reverse breakdown voltage of a Zener diode is 5.6 V in the given circuit.
The current Iz through the Zener is ______.
A Zener diode is to be used as a voltage regulator. Identify the correct setup.
