SCR Ring Counter with Power Supply Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12888
Indian Lab Suppliers supplies the SCR Ring Counter with Power Supply (Product ID: 12888) as part of its electronics engineering lab equipment range. It is a three-stage SCR ring counter that switches loads on one after another, with an adjustable time between steps.
Quick Answer
A 2N2646 UJT relaxation oscillator, fed from a 20 V zener-regulated supply, sends trigger pulses through three steering diodes to three SCRs. Each SCR that fires turns the previous one off through the commutation circuit, so the three dual indicating lamps light in sequence like a sequential flasher. A potentiometer sets the delay, and the ring can be extended to more stages with identical circuits. Experiments run the counter with its internal lamps and with an external load. The board is stated to operate from a 220 V DC supply; please confirm at quotation whether this supply is included. Treat 220 V DC as hazardous and connect with power off.
Key Specifications
| Parameter | Detail |
|---|---|
| Stages | 3 SCRs (extendable with identical circuits) |
| Trigger | UJT 2N2646 relaxation oscillator; 3 steering diodes |
| Control supply | 20 V DC, zener regulated |
| Delay | Adjustable by potentiometer |
| Indicators | 3 dual indicating lamps |
| Operating supply | 220 V DC (please confirm if supplied) |
| Protection | Fuse |
| Connections | 4 mm stackable patch cords, 0.5 m |
Where This Is Used
Used in sequential-switching practicals with the S.C.R. Lamp Flasher with Power Supply (Product ID: 12894) and the Forced Commutated Circuits with Power Supply (Product ID: 12906). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
How is each SCR turned off?
Firing the next stage commutates the previous SCR off.
Can more stages be added?
Yes, by adding identical stage circuits.
Can it drive an external load?
Yes, one experiment uses an external load.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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