Single Phase Half Wave and Bridge Controlled Rectifier Manufacturer,Supplier and Exporter in India

Product Code : SCL-EELE-12933

Indian Lab Suppliers supplies the Single Phase Half Wave and Bridge Controlled Rectifier (Product ID: 12933) as part of its electronics engineering lab equipment range. It covers both the single-phase half-wave controlled rectifier and the fully controlled bridge rectifier, with UJT firing and a lamp load.

Quick Answer

Two UJT oscillators, each with a firing-angle potentiometer, fire the SCRs through two 1:1:1 pulse transformers. Students first connect one SCR as a half-wave controlled rectifier, then use all four SCRs as a bridge, and in each case observe how the output waveform and the brightness of the 40 W, 230 V lamp change with firing angle. Power comes through a 50 W, 230 V AC isolation transformer, and the firing circuits use a 9 V DC, 100 mA zener-regulated supply. It uses the same board components as the Single phase fully-controlled Bridge Converter (Product ID: 12892), with the half-wave experiment added. The board runs from 230 V ±10%, 50 Hz mains, and the lamp circuit is at mains voltage.

Key Specifications

ParameterDetail
ExperimentsHalf-wave controlled rectifier; bridge controlled rectifier
Power devices4 SCRs
Firing2 UJTs; 2 pulse transformers 1:1:1; 2 firing-angle potentiometers
Isolation transformer230 V AC, 50 W
Control supply9 V DC, 100 mA, zener regulated
LoadLamp, 40 W, 230 V AC
Mains230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp
Connections4 mm stackable patch cords, 0.5 m

Where This Is Used

See also the Single phase Half Wave Controlled Converter (Product ID: 12896) for a half-wave-only board. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.

Frequently Asked Questions

What is the difference between the two circuits?
The half-wave rectifier conducts on one half cycle only; the bridge uses both half cycles.

How is the firing angle changed?
With the two UJT potentiometers.

What load is used?
A 40 W, 230 V lamp.

Related Categories

Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment

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