Power Electronics Lab By Omega Electronics

Test and Measuring InstrumentsOMEGA TYPE-400 Power Electronics Lab is used to perform power electronics circuit experiments. It is very useful in power electronics laboratories for performing power experiments in colleges and universities. It is very for student to know about the characteristics of power electronics devices and the applications of power devices. The applications or power devices are in alarm circuit lamp flasher rectifiers choppers inverters. It is also used for commutation circuits.The Equipment is Useful for Students at level in engineering / technical institutes (EC & Telecom) Technical training centers in communication organizations R&D personal and practicing engineering in research labs and industry.Technical Specifications



DC Power Supply on Board
5V at 100mA 12V at 150mA 15V at 50mA 35V at 50mA


AC Power Supply on Board
18V - 0V - 18V at 50mA15V - 0V - 15V at 50mA


Triggering Circuit on Board
5 gate signal outputFrequency range : 40Hz to 900Hz VariableAmplitude : 12VPWM control of G1G2G3 and G4 Dutycycle control of Gate Signal is 0 to 100%


Single Phase Rectifier
Firing angle control 0-180 variables


Firing Circuit on Board
Four gate signal output with isolation


SCR Assembly
4 SCRs 2P4M 600V2A


Power Devices
IGBT-G4BC20S MOSFET-IRF540 UJT-2N2646 DIAC-DB3 TRIAC-BT136 PUT-2N6027


Circuit Components On Board:
Capacitor 0.01uF 0.047uF 0.1uF 0.33uF 1uF/63V(4Nos.) 2.2uF/50VDiode 1N4007 (8Nos.)Zener Diode 9V (1Nos. )Inductors 10mH (1Nos.) 68mH (2Nos.)Load Resistance 120E 270E 1K 2K2 each 5WResistance on Board ( W) 22E/5W 100E/2W 220E/2WResistance on Board(1/4W) 10K (3Nos.) 22K33K47KPotentio Meter 4K7(2Mos.) 1M(1Nos.)


Pulse Transformer on Board
2 Nos. PT4502 1:1 and one is PT4503 1:1:1


Toggle Switch
SPST (1Nos.)


Power Requirements
220V 10% 50Hz



Experiments on Board using Breadboard: -

To study the characteristics of SCR and plot its V-I Characteristics.
To study the Gate control characteristics of SCR and It's graph.
To study the characteristics of UGT and calculate interbase resistance and intrinsic standoff ratio.
To study the characteristics of MOSFET.
To study the characteristics of IGBT.
To study the characteristics of DIAC and plot its V-I Characteristics curve.
To study the V-I characteristics of TRIAC.
To study the characteristics of PUT.
To study of class B commutation circuit.
To study of class C commutation circuit.
To study of class D commutation circuit.
To study of class F commutation circuit.
To study the Resistor Triggering circuit.
To study the Resistor-Capacitor Triggering Circuit (Half wave).
To study the Resistor-Capacitor Triggering Circuit (Full wave).
To study the triggering of SCR using UJT.
To study the Triggering of SCR using 555 IC.
To study the Triggering of SCR using Op-Amp 74I IC.
To study of the ramp and pedestal triggering using anti-parallel SCR in AC load.
To study of the UJT relaxation oscillator.
To study of the voltage commutated chopper.
To study of the Bedford inverter.
To study of the single phase PWM inverter using MOSFET.
To study of the single phase PWM inverter using IGBT.
To study the half-wave controlled rectifier with resistive load.
To study the half wave controlled rectifier with RL load.
To study the full-wave controlled rectifier (mid-point configuration)
With resistive load.
To study the full-wave controlled rectifier (mid point configuration) with RL load.
To study the fully controlled bridge rectifier with resistive load.
To study the fully controlled bridge rectifier with RL load.