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Looking for automatic LED dimmer

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mick439

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Can anyone give me any schematics to a automatic led dimmer. I can only find ones with self regulating dimmers with variable resitors.
 

Re: automatic led dimmer

Dear mick439
Hi
What do you mean by automatic dimmer ? is your mean , that by variation in light , it change the ligh of led automatically ?
If , yes , use an LDR + a bjt + 2 resistor+ LED !
Best Wishes
Goldsmith
 
Re: automatic led dimmer

Can anyone give me any schematics to a automatic led variation of light. My project is to make the light fades away and come back and then it repeats it self. I can only find ones with self regulating dimmers with variable resistors.
 

A very simple circuit here:
 

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  • LED fade 1.png
    LED fade 1.png
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hello.. i'm trying to connect the light/dark sensor circuit with dimmer circuit from reuk.co.uk but i dont know
how/where to connect the relay to the dimmer..
is it possible to combine both circuit?
can someone help me..
ne555-pwm-led-dimmer-circuit.gif
lm741-light-dark-sensor.gif
 

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