Topic

led dimming

3 videos. Ranked by independent recommendations, not by views.

1. 

   1 What is PWM? Pulse Width Modulation tutorial!

   Afrotechmods 9 people · 11 months · since Sept 2011

   The standard explainer for pulse width modulation, linked whenever someone needs to dim LEDs or control motor speed from a microcontroller.

2. 

   2 EEVblog #392 - 555 LED PWM Hack

   EEVblog 4 people · 4 months · since Dec 2012

   Dave Jones builds a 555-based PWM LED dimmer, used as a worked example of timer circuits, steering diodes and duty cycle control.

3. 

   3 Dimming LED lamps with ordinary dimmers.

   bigclivedotcom 3 people · 3 months · since Oct 2016

   Big Clive explains how mains dimmers work and why dimming LED lamps is often troublesome, cited several times when the subject comes up.