Summary of Triac based lamp dimmer
This article describes a low-cost dimmer circuit designed to adjust the brightness of incandescent or halogen lamps up to 250W. It operates on 110 or 230 VAC, using a BT136 Triac for control, with an onboard potentiometer for dimming adjustment. The compact PCB (40mm x 34mm) includes power battery terminals for easy connections and mounting holes for installation.
Parts used in the Triac based lamp dimmer:
- BT136 Triac
- Potentiometer
- Resistors
- Capacitor
- CN1 connector (Load connection)
- CN2 connector (Power supply connection)
- Printed Circuit Board (PCB)
- Power Battery Terminal (PBT)
Description
It is a low cost dimmer circuit for adjusting the light brightness of incandescent, Halogen Lamp, Light Bulb load up to 250 W.
Features:
– Input supply: 230 VAC or 110 VAC
– Output: 250 W
– Triac controlled
– On board Potentiometer for adjusting level
– Power Battery Terminal (PBT) for easy input / output connection
– Four mounting holes of 3.2 mm each
– PCB dimensions 40 mm x 34 mm
Circuit description
This kit consists of BT 136 Triac, resistors and capacitor. CN1 connector is for Load connections and CN2 connector for power supply connections.
For more detail: Triac based lamp dimmer
