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DIMMER

DIMMER

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  IDEA ELECTRONIC PROJECT

Circuit description:
This assembly is a dimmer, for obtaining a lighting ranging from zero to maximum.
We use a TRIAC, for the AC voltage and whose conduction is caused by the current "trigger."
This gate current is derived from a relaxer using a DIAC, C2 and R2.
The potentiometer P1 adjusts the phase shift of the trigger signals and determines the conduction angle. This is what provides the brightness variation.
The maximum permissible load is of the order of 1300 W, which ensures good security in the case of a bulb of a hundred watts.

NOMENCLATURE:

R1 1 KR
R2  6.8 kR
C1 100 nF 400V

C2 100 nF 400V
P1 220 KR LIN

-1 TRIAC 6A/400V

-1 DIAC 32V

-1 cordon secteur

-2 douilles

Production . settings:
Please note, this assembly is connected to mains. It is therefore dangerous! Use with maximum precautions, installing it in an insulating housing.

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