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Draw the Circuit Diagram of Zener Diode as a Voltage Regulator and Briefly Explains Its Working ? - Physics

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ConceptZener Diode as a Voltage Regulator

Question

Draw the circuit diagram of zener diode as a voltage regulator and briefly explains its working ?

Solution

 Zener diode as voltage regulator

  • 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.

  • If the voltage is increased beyond the zener voltage, then the resistance of the zener diode drops considerably.

  • 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.
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Solution Draw the Circuit Diagram of Zener Diode as a Voltage Regulator and Briefly Explains Its Working ? Concept: Zener Diode as a Voltage Regulator.
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