Topic

led driver

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

1. 

   1 #190: Back to Basics: Transistor Current Sources and Mirrors

   w2aew 7 people · 9 months · since Oct 2015

   Alan Wolke explains discrete transistor current sources and mirrors, ending with LED driving and compliance voltage; suggested as an alternative to an LM317 current source.

2. 

   2 Review: 1W 350mA LED Driver with the elusive 6200 Chip

   Julian Ilett 4 people · 10 months · since Feb 2016

   Linked when a cheap constant current LED driver module comes up, mainly for its demonstration of the module's PWM dimming input.

3. 

   3 Constant current power supply and laser / LED driver tutorial

   Afrotechmods 4 people · 4 months · since May 2015

   Shows a simple LM317 constant current circuit, offered as a cheap way to drive LEDs, though its fitness for laser diodes gets questioned.

4. 

   4 How to make an authentic Joule Thief.

   bigclivedotcom 4 people · 4 months · since Jun 2015

   Big Clive's well known tutorial on building a Joule Thief, the simple circuit that boosts a small battery voltage, by the person who coined the name.

5. 

   5 How to Drive LEDs - Easy Constant Current Circuit

   Kevin Darrah 3 people · 3 months · since Mar 2016

   Shared as a practical explanation of driving LEDs at constant current with a shunt regulator and a transistor instead of a resistor per LED.

6. 

   6 How to Control a Ton of RGB LEDs with Arduino & TLC5940

   Kevin Darrah 3 people · 3 months · since Feb 2014

   Demonstrates using the TLC5940 multi-channel PWM driver with an Arduino to run many RGB LEDs, suggested whenever someone needs more PWM outputs.