SMPS Trainer

The SMPS Trainer is designed for practical study of switched-mode power supply circuits and their operating principles. It provides students with a hands-on platform to understand AC input selection, rectification, DC conversion, filtering, switching action, feedback control, and output regulation. The trainer includes a rotary switch for selecting different input voltages, a bridge rectifier for AC-to-DC conversion, filter circuitry, a high-frequency transformer with high-frequency transistor, and a feedback/comparator circuit for maintaining a constant output voltage. Digital meters are provided for monitoring output voltage and current, while bulb holders allow a resistive load to be connected across the output. Designed and manufactured by Atico Export to meet the practical demands of modern laboratories.

Power Supply:

• Input: 180–200–220–240 V, 150 VA.
• DC Power Supply: +5 V, 1 A.
• DC Power Supply: +15 V, 1 A.
• DC Power Supply: -15 V, 250 mA.
• Mains operated: 230 V, 50 Hz ±10%.

Components Mounted on Panel:

• MOSFET.
• Digital meters for voltage and current measurement.
• Socket for output connection.
• Low-voltage bulb as load.

• Rotary switch for selecting different input voltages and AC linearity coil.
• Bridge rectifier for converting AC into DC.
• DC filtration circuit for filtering impurities from the AC components.
• High-frequency transformer and high-frequency transistor for switching operation.
• Feedback/comparator circuit for maintaining constant output voltage.
• Output voltage variation: ±10% under load.
• Two digital meters for measuring DC voltage and current.
• Two bulb holders for connecting a resistive bulb load across the output.
• Fuse protection against short-circuit conditions.
• Front panel with high-class insulated printed circuit board featuring clearly printed circuits and symbols.
• Instruction manual.
• 4 mm patch cords.
• High-voltage test points with 4 mm safety sockets.
• Housed in a plastic cabinet.
• Trainer size: 12 × 10 inches.