Insert Key Button:This is used to insert key on the switch connected with battery. This key is only activated when the connection is perfect.
Choose Zener Diode: This combo box is used to select different zener diodes having different zener voltage
Series Resistance: Value of the Series Resistance can be directly input here.
Rheostat value: Rheostat can be controlled by using this slider
Load Resistance: Value of load resistance can be set or change by using this slider
Reset Button: To reset all the connections
Using the circuit diagram, identify the connections in the given platform. Connections are made as shown in the below diagram.
How to make connections in simulation ?
Click one end node of the battery and drag to the next position, where we want to connect the wire. Just like shown in the figures below:
(a) (b) (c)
Like this, make all the connections are perfect.
Full connection diagram
If the connections are correct, Insert Key option activated
- Choose the zener diode to start the experiment.
- Insert the series resistance value.
- Fix the load resistance value by using Load Resistance slider.
- Change the Rheostat value from maximum to 0 by the interval 100.
- Note down the corresponding input voltage and output voltage and tabulate it.
- Plot the graph in which VIN at x-axis VL at y-axis.
Percentage of Line regulation =
- First 3 steps are same as above.
- Fix the Rheostat value, to get the 12 V at voltmeter across rheostat.
- Change the load Resistance with the interval of 100 Ω/1000 Ω up to maximum range.
- Note the reading and tabulate it.
- Plot the graph between V0 along x-axis and RL along y-axis.
Let us consider VNL is the output voltage when there is no load resistance (ideally VNL = Zener voltage) and VFL is the output voltage when load resistance is maximum.
Percentage of Load regulation =
Note: This is an ideal circuit. For a real circuit, there will be small variations in output voltage with varying input voltage or load resistance.