VI Characteristics of SCR
To Study and verify VI characteristics of SCR.Using VI characteristic of IGBT,MOSFET,SCR unit.
- VI Characteristics of SCR kitc
- Patch cards
- Power card
- Ensure the 230V Power Supply is in proper with Tester.
- Check the input supply of the kit and off the switches of the kit.
Mimic Diagram for SCR
- Connections are made as shown in the circuit diagram.
- Switch on SW2 observe whether meter are reading 0.
- Set both voltages to minimum position, and then switch on SW1.
- Increase VAK voltage to maximum position.
- Now slowly increase the voltage across VGK at certain voltage SCR is turned on stop varying the voltage at that point.
Note: It may turn on around 3V.
- Then reduce the voltage VAK to minimum position, don’t vary the VGK and Switch off SW1.
- Now Switch on SW1 then note down the readings.
- Now vary VAK voltage slowly, correspondingly note down the VAK and IA readings and plot the graph.
- Repeat from step 2 for another value of gate current IG.
If the connections are made wrong the kit may get damaged. Please switch off the kit when not in use.