Zener Diode - LOAD Regulator

IS

IL

IZ

Vo

RS

VDC

RL

CONTROLS

   DC volt :                  Volt
   Zener Diode(VZ) :   Volt
   Resistance(RS) :       Ohms
   Resistance(RL) :      Ohms

INSTRUCTION

  1. Set DC voltage to 6 volt.
  2. Set the Series Resistance (RS) to 100 Ω
  3. Set Zener voltage (VZ) to 5.1 V.
  4. Vary the Load Resistance (RL).
  5. Voltmeter is placed parallel to load resistor and ammeter series with the series resistor.
  6. Choose Load Resistance in such a manner, such that the Zener diode is 'on'.
  7. Now note the Voltmeter and Ammeter reading for various Load Resistance.
  8. Increase the load resistance (RL).
  9. Note the Load current(IL), zener current(IZ), Output voltage(VO)
  10. Calculate the voltage regulation.
  11. Repeat the experiment VZ =10 v, RS= 100 Ω, DC voltage =12 v, vary Load Resistance.

EXPERIMENTAL TABLE

DC Voltage (VDC):V  Zener Voltage(VZ):V

Series Resistance(RS):KΩ

Serial No. Load Resistance(RL)
Ohm		 Load Current(IL)
mAmp		 Zener Current(IZ)
mAmp		 Regulated Output Voltage(VO)
V		 % Voltage Regulation

GRAPH PLOT

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