Simple Phase Controlled Dimmer Circuit Diagram. This is the Simple Phase Controlled Dimmer Circuit Diagram, Phase-control dimmers reduce the lamp brightness by cutting out part of the AC waveform. A phase-controlled dimmer delays the triac turn-on to a selected point in each successive ac half cycle. Use this schema only for incandescent lamps, heaters, soldering irons, or universal motors that have brushes.
Showing posts with label dimmer. Show all posts
Showing posts with label dimmer. Show all posts
Friday, August 29, 2014
Monday, August 18, 2014
TRIAC Light Dimmer
This little schema can be used to dim lights up to about 350 watts. It uses a simple, standard TRIAC schema that, in my expirience, generates very little heat. Please note that this schema cannot be used with fluorescent lights.
Parts
R1 50K Pot
R2 15K 1/2W Resistor
C1, C2 0.068 250V Capacitor
L1 Lamp To Be Controlled (up to 350 watts)
L2 Neon Lamp
TR1 40502 TRIAC
MISC Case, Knob, Heatsink For TR1, Wire, Socket For L1
Notes
1. This schema is for 117VAC only. 220 or 240 V will burn up the schema. L1 can be a maximum of 350 watts.
2. The schema must be installed and used in a case. (Well give you 230 v schema recently)
