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Zenerdiode lab report
1. ZENER DIODE CHARACTERISTICS
Objectives:
To study the characteristics of Zener diode.
To study the voltage regulation in Zener diode regulation circuit.
Equipment:
Instruments
DC power supply
Function Generator
Digital Multimeter (DMM)
Components
Diode : Zener (10-V)
Resistors: 0.1kΩ, 1kΩ(2 pcs), 3.3kΩ
Procedure:
Part A : Zener Diode Characteristics
1. Construct the circuit. Set the DC supply to 0 V and record the measured value
of R.
2. 2. Set the DC supply (E) to the values appearing and measure both VZ and VR.
Calculate the Zener current, IZ using the Ohm’s law given in the table and
complete the table.
3. Plot IZ versus VZ using the data on a graph paper.
Part B : Zener Diode Regulation
1. Construct the circuit. Record the measured value of each resistor.
2. Measure the value of VL and VR. Using the measured values, calculate the
value for current across R, IR, current across RL, IL, and current across the zener
diode, IZ.
3. Change RL to 3.3 kΩ and repeat Step 2.
4. Comment on the results obtained in Steps 2 and 3.
Results and Calculations:
Part A
1. R (measured) = __________
E ( V ) 0 1 3 5 7 9 11 13 15
VZ ( V )
VR ( V )
IZ = VR / Rmeas ( mA )
