110V Light Dimmer using TRIAC | Schematic Diagrams

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110V Light Dimmer using TRIAC


110v light dimmer circuit with TRIAC 110V Light Dimmer using TRIAC

Here the 110V light dimmer circuit which use TRIAC as the main component. This very simple circuit can be used to dim the lights up to about 350 watts. It uses a simple, standard TRIAC circuit that, in my experience, produces very little heat. Please take a note that this circuit cannot be used with fluorescent tube lights.

This light dimmer circuit works for 117VAC only. 220V or 240V will burn up the circuit. L1 can be a maximum of 350 watts. The circuit must be constructed, installed and used in a case.

Components list:

  • R1 = 50K Potensiometer
  • 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

110V light dimmer circuit using TRIAC, source page: http://www.aaroncake.net/circuits/dimmer.asp

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