Friday, May 8, 2015

PWM light dimmer

PWM today used in many areas such as solar charger, motor speed controller, light dimmer, mobile battery charger, etc.
Following circuit is a PWM light dimmer that used IC 555.
By this circuit you can change the brightness of LED lights.
It also help to decreasing power consumption because when the LED is ON in fact it flashing by very high speed but the humans eye can not identifies that so we will see it continuous shine.

PWM light dimmerPWM light dimmer