Step Down Chopper

The Step Down Chopper is designed for practical study of MOSFET switching and pulse width modulation techniques. It provides a suitable platform for understanding PWM signal generation, frequency control, and MOSFET-based electronic circuits through hands-on experimentation. The trainer includes a PWM pulse generator circuit, potentiometer-based frequency control, digital meters, and a rheostat load for practical testing. Designed and manufactured by Atico Export to meet the practical demands of modern laboratories.

Digital Meters:

• Voltmeter: 200 V DC.
• Ammeter: 20 A DC.

Power Supplies:

• +15 V / 150 mA.
• Isolated supply: 0–28 V AC at 2 A.
• Mains operated: 230 V, 50 Hz ±10%.

Components Mounted on Panel:

• MOSFET.
• PWM pulse generator circuit.
• Frequency control through potentiometer.

Load:

• Rheostat as resistive load.

• Protective cover.
• Front panel with high-class insulated printed circuit board featuring clearly printed circuits and symbols.
• Overload protection through circuit breaker.
• Fuse protection against short-circuit conditions.
• Instruction manual.
• Connections through 4 mm and 2 mm coloured sockets.
• 4 mm and 2 mm patch cords.
• Housed in a metal cabinet.
• Trainer size: 15 × 11 inches.