Lamp Dimmer Using Diac and Triac with Power Supply Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12912
Indian Lab Suppliers supplies the Lamp Dimmer Using Diac and Triac with Power Supply (Product ID: 12912) as part of its electronics engineering lab equipment range. It is a working lamp dimmer in which a DIAC triggers a TRIAC to vary lamp brightness by phase control.
Quick Answer
A potentiometer and capacitor set the delay before the capacitor voltage reaches the DIAC breakover level; the DIAC then fires the TRIAC, which conducts for the rest of the half cycle in both directions. Turning the potentiometer changes the firing angle and the lamp brightness. The board is self-contained, with a 230 V, 200 mA isolation transformer, TRIAC, DIAC, lamp load and control potentiometer, and runs from 230 V ±10%, 50 Hz mains. Switch off before changing any connection, as the lamp circuit is at mains voltage.
Key Specifications
| Parameter | Detail |
|---|---|
| Devices | TRIAC, DIAC |
| Supply | Isolation transformer, 230 V AC, 200 mA |
| Control | Lamp-intensity potentiometer |
| Load | Lamp |
| 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
Pairs with the Fan Regulator Using Diac and Triac with Power Supply (Product ID: 12914), which uses the same DIAC-TRIAC circuit on a motor, and the Study of Triac and A.C.Phase Control (Product ID: 12882). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why is a DIAC used with the TRIAC?
It gives a sharp trigger pulse at a fixed breakover voltage in both half cycles.
Is anything else needed?
No, the board is self-contained.
How is brightness varied?
With the intensity potentiometer, which changes the firing angle.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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