D.C. Power Supplies and 2 dual range meters Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12203
Indian Lab Suppliers supplies the D.C. Power Supplies and 2 dual range meters (Product ID: 12203) as part of its electronics engineering lab equipment range. It is a training board for building DC power supplies step by step: rectification, smoothing, Zener and transistor regulation, and ripple reduction.
Quick Answer
From a built-in 4.5-0-4.5 V AC, 300 mA source, students wire a half-wave rectifier, a centre-tapped full-wave rectifier and a bridge rectifier, then add a choke and electrolytic capacitors for smoothing. Regulation stages use a Zener diode and NPN and PNP transistors as series and shunt regulators. Line regulation, load regulation and ripple factor are measured with a DC milliammeter (50 and 200 mA) and an AC/DC voltmeter (10 and 20 V), using a wire-wound potentiometer as the load. A 20 MHz oscilloscope is needed to view ripple waveforms.
Key Specifications
| Parameter | Detail |
|---|---|
| AC source | 4.5-0-4.5 V at 300 mA |
| Components | 4 rectifier diodes, choke, Zener diode, NPN and PNP transistors, 2 electrolytic capacitors |
| Load | Wire-wound potentiometer |
| DC milliammeter | 65 mm rectangular dial, 50 mA / 200 mA |
| AC/DC voltmeter | 65 mm rectangular dial, 10 V / 20 V |
| Measurements | Line regulation, load regulation, ripple factor |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
| Also required | 20 MHz oscilloscope |
Where This Is Used
Used as the first power-supply practical in electronics courses. Follow-on boards: Zener regulated Power Supplies in 2 meters (C.R.) (Product ID: 12222) and Transistor Series & Shunt Voltage Regulated Power Supplies in 2 meters (C.R.) (Product ID: 12221). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Which rectifier circuits are covered?
Half-wave, centre-tapped full-wave and bridge.
What is used as the load?
A wire-wound potentiometer.
Is an oscilloscope required?
Yes, a 20 MHz oscilloscope for ripple observation.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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