SCR Regulated D.C. Power Supply Manufacturer,Supplier and Exporter in India
Product Code : ILS-EELE-10415
Indian Lab Suppliers supplies the SCR Regulated D.C. Power Supply (Product ID: 10415) as part of its electronics engineering lab equipment range. It is a bench trainer that shows how a phase-controlled SCR bridge gives a regulated, variable DC output.
Quick Answer
A 0-40 V, 500 mA transformer feeds a bridge of two SCRs and rectifier diodes with a freewheeling diode. A UJT (2N2646) relaxation oscillator generates the firing pulses, which reach the SCRs through a 1:1:1 pulse transformer; a separate four-diode bridge with a zener supplies the control circuit, and a 24 V DC regulated supply is built in. The output is continuously variable from 10 to 40 V and can feed an external load of up to 500 mA or the internal load in 16 steps, with three potentiometers for the voltage-adjustment modes. Waveform sockets, stackable 4 mm patch cords (0.5 m) and operating instructions with theory, design procedure and report suggestions are supplied.
Key Specifications
| Parameter | Detail |
|---|---|
| Output | 10 to 40 V DC, continuously variable |
| Load | Internal load in 16 steps; external load up to 500 mA |
| Power circuit | Two SCRs and diodes in bridge, freewheeling diode |
| Transformer | 0-40 V, 500 mA |
| Firing | UJT 2N2646 relaxation oscillator, 1:1:1 pulse transformer |
| Control supply | Diode bridge with zener; built-in 24 V DC regulated supply |
| Mains | 230 V ±10%, 50 Hz; switch, fuse, indicator lamp |
| Size and weight | 340 x 110 x 210 mm (W x H x D), 3 kg |
Where This Is Used
Used in power electronics labs with Study of SCR and A.C. Phase Control (Product ID: 10418) and DV/DT Limitation of SCRs (Product ID: 10417). The board is mains powered: switch off before changing links and use an isolated oscilloscope for waveforms. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What is the output range?
10 to 40 V DC, continuously variable.
How are the SCRs triggered?
By a UJT relaxation oscillator through a 1:1:1 pulse transformer.
What load can it feed?
Up to 500 mA externally, or its internal load in 16 steps.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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