SCR Parallel Inverter with Power Supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12904
Indian Lab Suppliers supplies the SCR Parallel Inverter with Power Supply (Product ID: 12904) as part of its electronics engineering lab equipment range. It is a two-SCR parallel (centre-tapped transformer) inverter that converts a 12 V DC supply to AC to light a 25 W lamp.
Quick Answer
The DC supply feeds the centre tap of a 9-0-9 V, 3 A transformer, and the two SCRs switch the current alternately through each half of the winding, with a commutating capacitor turning off the outgoing SCR. A UJT generates the ramp, an IC drives two pulse transistors, and a 1:1:1 pulse transformer delivers the gate pulses. Two push-to-ON switches start and stop the inverter through a 12 V DC relay controlled by three transistors. Built-in supplies are 12 V DC at 3 A for the power circuit and 12 V DC at 100 mA regulated for control. A 20 MHz dual-trace oscilloscope is needed; use isolated or differential probes rather than disconnecting the oscilloscope’s earth.
Key Specifications
| Parameter | Detail |
|---|---|
| Power devices | 2 SCRs |
| Transformer | 9-0-9 V AC, 3 A |
| Supplies | 12 V DC, 3 A; 12 V DC, 100 mA regulated |
| Firing | UJT ramp; IC-driven pulse transistors; pulse transformer 1:1:1 |
| Control | 2 push-to-ON switches; 12 V DC relay with 3 driver transistors |
| Load | 25 W lamp with socket |
| Weight / size | About 7.5 kg; W 415 × H 165 × D 315 mm |
| Also required | 20 MHz dual-trace oscilloscope |
Where This Is Used
Compared with the Single Phase Series Inverter with Power Supply (Product ID: 12903) and the Single Phase Transistorised Bridge Inverter with Power Supply (Product ID: 12905) in inverter practicals. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How is each SCR turned off?
A commutating capacitor across the transformer applies reverse voltage when the other SCR fires.
What is the load?
A 25 W lamp with socket.
What else is needed?
A 20 MHz dual-trace oscilloscope.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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