Sunday, April 4

Simple Electronic Touch Dimmer Circuit

If we touch upon the key for a small period of time (60 until 400 ms), the lamb simply only changes situation, that is to say from OFF in ON or on the contrary, depended from the situation is found itself before the unit. In one of bigger duration of touch (more from 400ms), is altered the brilliance of lamb, late from dark in luminous or on the contrary. Are required roughly seven seconds, in order to we have complete brilliance. When it stops touch of key, remains that prevailing level of brilliance, in moment. With short contact (OFF), the selected brightness is stored.This level of brightness, comes back with a new short touch, in the switch (ON). . In the case of fluctuation of brightness, the control begins from the point that has been stored. The unit can be checked from distance with a external circuit of touch or from a pressing switch S1, also can are placed also other switches at the parallel, in different points, long from the unit. The circuit is designed to work with the modern designing of wirings in a house, where lambs are connected in the neutral line and the switches (or the dimmer), are connected in the line of phase. If the circuit is connected in the neutral line and lamb in the phase, then the handling becomes exclusively from pressing switches. The circuit can check power, above 300W
COMPONENTS ;
R1-2-3= 4M7 D1= 18V 1W IC1= S566B SIEMENS
R4-5-6= 4M7 D2= 1N40001 Q1= BC212L
R7-8= 470K D3= 15V 1W Q2= BC182L
R9= 120R C1-2= 47nF 250V TH1= TIC206D
R10= 1M5 C3= 470pF ceramic S1= Push Button switch
R11= 10K C4= 100uF 25V LB= Lamb 220V >300W
R12= 100R (47R) C5= 220nF 630V L1= 50 turns 0.5mm up C6
R13= 1K 1W C6= 100nF 630V J1-2= Touch Pad

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