Triggering Circuits for SCR
Product Code : JA-PET-1430
The triggering circuits for SCR trainer covers the three basic ways of firing an SCR: resistor (R), resistor-capacitor (R-C) and UJT relaxation oscillator triggering. The same board is used to study half-wave and full-wave controlled rectifiers, with a 35 V AC supply, a bridge rectifier, two SCRs, a UJT and a 1:1 pulse transformer built in (SKU JA-PET-1430).
Specifications
Parts and ratings listed for the triggering circuits board:
| Product | Triggering Circuits for SCR |
| SKU | JA-PET-1430 |
| AC supply | 35 V AC at 100 mA |
| Rectifier | Bridge rectifier for the DC voltage |
| SCRs | Two |
| UJT | One |
| Pulse transformer | 1:1 |
| Load controls | Two potentiometers for varying the load |
| Firing controls | Two potentiometers: one for the SCR firing angle, one for the UJT firing angle |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and jewel light |
| Patch cords | 4 mm stackable spring-loaded plugs, 0.5 m |
| Weight | 3 kg approx. |
| Dimensions | W 340 x H 110 x D 210 mm |
| Other apparatus required | Dual trace CRO 20 MHz (unearthed) |
Triggering methods and circuits studied
The operating instructions cover:
- Resistor (R) triggering circuit
- Resistor-capacitor (R-C) triggering circuit
- UJT triggering circuit (UJT relaxation oscillator)
- Half-wave controlled rectifier
- Full-wave controlled rectifier
Scope of supply and ordering
The listing covers the SCR triggering circuits board with patch cords and operating instructions, supplied by JaincoLab. The number of units, the packing and the dispatch time are confirmed on the quotation.
Frequently asked questions
Which triggering methods does the board cover?
Resistor (R), resistor-capacitor (R-C) and UJT relaxation oscillator triggering of an SCR.
Can controlled rectifiers be studied on it?
Yes. Half-wave and full-wave controlled rectifiers are among the listed experiments, using the built-in bridge rectifier and two SCRs.
What sets the firing angle?
Two potentiometers: one controls the SCR firing angle and the other the UJT firing angle.
Related products
- SCR Triggering Circuit
- UJT Relaxation Oscillator
- Trigger a SCR by using a LDR
- Single Phase Fully Controlled Bridge Converter
More items of this type are listed in the power electronics trainers range.
Request a quote
Send your requirement for the Triggering Circuits for SCR to [email protected] or use the contact page. Buying under a laboratory tender? Use our tenders page.
