Schematic for PWM LED Dimmer

[TheSwede73]

Hi!

Does anyone have a simple schematic of a pwm dimmer for led?

It's supposed to dim up to 6 clusters of 19 leds each, the lamps have resistors and everything built in so i just need the dimmer, 12V.

Thanks!!

 

[Chippie]

How about a 555 timer chip configured as a pwm running from a 12v supply with a suitably rated mosfet to handle the current..

I Googled and got this:**broken link removed**

replace the motor with your led

 

[pcbheaven.com]

Remove from **broken link removed** the 470uF capacitor and it's ready.

 

[Boncuk]

Remove from **broken link removed** the 470uF capacitor and it's ready.

Why completely remove it? 47µF is always good with an NE555.

 

[pcbheaven.com]

Why completely remove it? 47µF is always good with an NE555.

Because this capacitor is used for the fan to remove the noise of pwm kicking sounds. It is not needed with LEDs at all.