Firing circuit using Op-Amps and Gates with Power Supply Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12901
Indian Lab Suppliers supplies the Firing circuit using Op-Amps and Gates with Power Supply (Product ID: 12901) as part of its electronics engineering lab equipment range. It is a firing circuit for a single-phase converter built from op-amps and AND gates, giving two isolated gate-pulse outputs.
Quick Answer
Eight op-amps condition a 6 V AC synchronising signal and compare it with a control voltage to produce the timing signals for each half cycle. A quad 2-input AND gate combines these signals, and two NPN transistors drive two 1:1 pulse transformers, one for each SCR group of the converter. Three potentiometers set the control levels, so students can trace every stage from the sine input to the gate pulse and see the firing angle change. Built-in 6 V AC and ±12 V DC, 100 mA supplies power the board from 230 V ±10%, 50 Hz mains.
Key Specifications
| Parameter | Detail |
|---|---|
| Scheme | Op-amp and gate firing circuit for a single-phase converter |
| ICs | 8 op-amps; quad 2-input AND gate |
| Output stage | 2 NPN transistors; 2 pulse transformers 1:1 |
| Controls | 3 potentiometers |
| Supplies | 6 V AC, 100 mA; ±12 V DC, 100 mA regulated |
| Mains | 230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp |
| Connections | 4 mm stackable patch cords, 0.5 m |
Where This Is Used
Compared with the Firing circuit using Ramp Comparator Scheme with Power Supply (Product ID: 12900) and the Firing circuit using Cosine-Wave Scheme with Power Supply (Product ID: 12902) in firing-circuit practicals. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why are there two pulse outputs?
One set of pulses serves each half cycle of a single-phase converter.
How many op-amps are used?
Eight.
Why are pulse transformers used?
They isolate the low-voltage logic from the SCR gates.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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