Power Electronics Trainer

The SCR, TRIAC, UJT, MOSFET & IGBT Characteristics Trainer is designed for comprehensive practical study of power semiconductor devices and their triggering techniques. It provides a wide range of experiments covering SCR, TRIAC, UJT, MOSFET, IGBT, DIAC, PUT, power transistor, and rectifier characteristics. The trainer also supports digital, UJT, and RC triggering methods along with switching and phase-control applications. It includes multiple power supplies, digital meters, semiconductor devices, capacitors, inductors, and selectable resistive loads for detailed practical experimentation. Designed and manufactured by Atico Export to meet the practical demands of modern laboratories.

Scope of Learning

• Study the V-I characteristics of SCR.
• Study SCR gate control characteristics and gate triggering.
• Study the characteristics of UJT.
• Study the characteristics of MOSFET.
• Study the characteristics of IGBT.
• Study the V-I characteristics of DIAC.
• Study the V-I characteristics of TRIAC.
• Study the characteristics of PUT.
• Study resistor triggering circuits.
• Study half-wave resistor-capacitor triggering circuits.
• Study full-wave resistor-capacitor triggering circuits.
• Study SCR triggering using UJT.
• Study digital firing circuits.
• Study SCR triggering using digital techniques.
• Study TRIAC triggering and control.
• Study UJT triggering techniques.
• Study MOSFET triggering techniques.
• Study IGBT triggering techniques.
• Study power transistor characteristics.
• Study SCR half-controlled rectifier circuits.
• Study SCR full-controlled rectifier circuits.
• Study UJT relaxation oscillator.
• Study TRIAC switching circuits.
• Study TRIAC AC phase-control circuits.

Power Supplies:

• +5 V at 250 mA.
• +15 V at 250 mA.
• 0–15 V at 250 mA.
• 0–30 V at 250 mA.
• 18–0–18 V at 150 mA.
• 15–0–15 V at 250 mA.
• Mains operated: 230 V, 50 Hz ±10%.

Digital Meters:

• Dual-range voltmeter/ammeter: 20 V / 20 mA.
• Dual-range ammeter: 20 mA / 200 mA.
• Dual-range voltmeter: 20 V / 200 V.

SCR Assembly:

• 4 SCRs, rated up to 600 V, 2 A.

Power Devices:

• IGBT.
• MOSFET.
• UJT.
• DIAC.
• TRIAC.
• SCR.
• Power transistor.
• PUT.
• Power diode.

Capacitors on Board:

• 1 µF: 2 units.
• 10 µF: 2 units.
• 0.1 µF: 2 units.

Inductors:

• 10 mH: 1 unit.
• 100 µH: 1 unit.
• 10–10 mH: 1 unit.

Load Resistance:

• Rotary-switch selectable resistive load.
• 100 Ω, 220 Ω, 500 Ω, 1 KΩ, and 2 KΩ.
• Each rated at 5 W.

Resistors on Board:

• 10 KΩ / ¼ W.
• 100 Ω / 2 W: 2 units.
• 220 Ω / 2 W: 2 units.

• Front panel with high-class insulated printed circuit board featuring clearly printed circuits and symbols.
• Instruction manual.
• 2 mm patch cords.
• High-voltage test points with 2 mm sockets.
• Housed in an ABS plastic cabinet.
• Trainer size: 12 × 10 inches.