Firing Circuit Using OP AMPS And Gates Manufacturer,Supplier and Exporter in India
Product Code : EL-PET-1435
Jlab Export is a leading Firing Circuit Using OP AMPS And Gates Manufacturer,and suppliers in India
Firing Circuit Using OP AMPS And Gates (code EL-PET-1435) is a power electronics training board for studying how the gate pulses of a single-phase converter are produced by a firing circuit built with op-amps and logic gates. Its panel carries eight op-amps, a quad 2-input AND gate IC and two 1:1 pulse transformers. JLab, Jain Laboratory Instruments Pvt Ltd, builds the board at its own works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Experiment | Study of the firing circuit for a single-phase converter using op-amps and gates |
| AC supply | 6 V AC at 100 mA |
| DC supply | ±12 V DC at 100 mA, fixed regulated |
| Op-amps | Eight (IC) |
| Logic IC | Quad 2-input AND gate IC |
| Transistors | Two NPN transistors |
| Pulse transformers | Two, ratio 1:1 |
| Potentiometers | Three |
| Other components | Adequate number of other electronic components on the board |
| Mains controls | Mains ON/OFF switch, fuse and jewel light |
| Mains supply | 230 V ±10%, 50 Hz AC |
| Patch cords | Adequate number, stackable, 4 mm spring-loaded plugs, ½ metre long |
| Terminals | Terminals and sockets at the appropriate points on the panel for connections and observation of waveforms |
| Operating instructions | Detailed, covering the object, theory, design procedures, report suggestions and book references |
| Weight | 4 kg (approx.) |
| Dimensions | W 412 × H 150 × D 310 |
| Other apparatus required | Dual trace cathode ray oscilloscope, 20 MHz (unearthed) |
| Optional load unit | Lets the experiment work into a load; has a 50 W isolation transformer, a 40 W lamp, a 400 V 4 A SCR, a mains ON/OFF switch, fuse and jewel light |
| Quality check | Each board is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-PET-1435 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Firing Circuit Boards?
| Board | Firing scheme | Op-amps (IC) | Logic ICs | NPN transistors | Pulse transformers | Potentiometers | Weight (approx.) |
|---|---|---|---|---|---|---|---|
| This board (EL-PET-1435) | Op-amps and gates | Eight | Quad 2-input AND gate | Two | Two, 1:1 | Three | 4 kg |
| Firing Circuit Using Ramp Comparator Scheme | Ramp comparator | Two | Quad Ex-OR, triple 3-input AND, hex inverter and quad 2-input AND gate ICs | Two | Pulse transformer, 1:1 | Potentiometer for reference voltage adjustment | 3 kg |
| Firing Circuit Using Cosine Wave Scheme | Cosine-wave comparator | Six | Triple 3-input AND gate | Four | Two, 1:1:1 | Two | 4 kg |
All three boards study the firing circuit of a single-phase converter, share the 6 V AC and ±12 V DC supplies, call for a 20 MHz dual trace oscilloscope and have the same optional load unit. Pick this one when the syllabus covers the op-amp and gate method; the other two follow the ramp comparator and cosine-wave comparator methods.
What Is the Op-Amp and Gate Firing Circuit Used For?
A phase-controlled converter sets its DC output by delaying the moment each thyristor (SCR) is switched on in every half cycle of the AC supply. The firing circuit decides that moment, the firing angle, and must stay locked to the mains so the pulses arrive at the same point in each cycle. This power electronics trainer lets science and engineering students connect up and study such a circuit for a single-phase converter, following the waveforms at the panel terminals with an oscilloscope from the control stages through to the pulse transformer outputs.
What to Specify When Ordering
- Number of boards — the quantity needed for your power electronics lab.
- Optional load unit — say whether each board should come with it.
- Test instruments — add any oscilloscope you want quoted together with the boards.
- Other firing schemes — if the course compares methods, list the ramp comparator or cosine-wave boards on the same enquiry.
Frequently Asked Questions
Why are op-amps used in a firing circuit?
Op-amps work well as comparators and signal shapers. In op-amp firing schemes, a comparator detects the instant a timing waveform derived from the supply crosses a control voltage, and that instant fixes the firing angle; logic gates then steer and shape the resulting pulses before transistor stages drive the pulse transformers.
What other apparatus is needed with this board?
A dual trace cathode ray oscilloscope of 20 MHz, used unearthed. JLab’s Dual Trace Oscilloscope is a separate instrument that can be quoted on the same enquiry.
Why does the board use pulse transformers?
A thyristor’s gate and cathode sit at the potential of the power circuit, while the firing electronics work at low voltage. A pulse transformer passes the trigger pulse across while keeping the two circuits electrically isolated.
How does it differ from the ramp comparator and cosine wave firing boards?
The difference is the method used to time the pulses: this board uses op-amps and AND gates, the other two use a ramp comparator or a cosine-wave comparator. Their component sets also differ, as the comparison table above shows.
What is in the optional load unit?
A 50 W isolation transformer, a 40 W lamp and a 400 V, 4 A SCR, with its own mains ON/OFF switch, fuse and jewel light, so that the experiment can work into a load.
What details should an export enquiry include?
The number of boards, the destination country and port or city, the delivery terms you prefer (FOB or CIF, for example), any packing or labelling needs and, for a tender, its reference number.
Who manufactures this firing circuit board?
Jain Laboratory Instruments Pvt Ltd (JLab) makes it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an engineering lab equipment manufacturer in India that builds power electronics and electronics training boards. The company was incorporated in 2017 and works from Hargolal Road, Ambala, Haryana. The board is produced at JLab’s own works and not bought in from a trader, so colleges, institutes, dealers and importers order from the maker itself; every board is visually inspected before it leaves, and repeat orders are handled by the same works. JLab exports worldwide and ships to buyers in every region — for example Argentina in South America, Senegal in West Africa, Sweden in Northern Europe, Lesotho in Southern Africa and Barbados in Central America and the Caribbean. For institutional purchasing, see the JLab lab tenders page.
Related Power Electronics Trainers and Instruments
- Firing Circuit Using Ramp Comparator Scheme — the single-phase converter firing circuit board built on the ramp comparator method.
- Firing Circuit Using Cosine Wave Scheme — the board for the cosine-wave comparator method.
- Single Phase Fully Controlled Bridge Converter — a separate board with four SCRs, two UJTs and a 40 W bulb for studying the bridge converter itself.
- SCR Triggering Circuit — a board for SCR triggering with controlled gate pulses, built around a signal conditioner and pulse generator IC.
- Dual Trace Oscilloscope — JLab’s 20 MHz dual-channel cathode ray oscilloscope, sold as a separate instrument.
Browse the full Power Electronics Trainers range or all Electronics Lab Equipments.
Request a Quote
To enquire, press the Add To Cart button on this page or write through the contact page, giving the quantity, the delivery destination and any related boards or instruments to be quoted alongside.
Last updated: 22 October 2026
