Zener Diode As Voltage Regulator Experiment Circuit Diagram. A zener diode or breakdown diode. The zener diodes have a voltage rating equivalent to the intended output voltage that may be closely match the desired output value.
Draw the zener diode voltage regulator circuit diagram. Note down the corresponding input voltage and output voltage and tabulate it. Plot the graph in which v in at x axis v l at y axis.
As we know if the voltage across the diode exceeds a certain value it would draw excessive current from the supply.
We know zener diode is a two terminal active device and specially known for zener breakdown operation. The value of the series resistor is written as rs vl vz il current through the diode increases when the voltage across the diode tends to increase which results in the voltage drop across the resistor. Change the rheostat value from maximum to 0 by the interval 100. Incremental resistance rz 20ω nominal voltage vz 7 1v measured at a test current of 20ma the zener diode requires a current equal to or greater than iz min 2 5ma to operate correctly.
