Topic

constant current

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

1. 

   1 EEVblog #102 - DIY Constant Current Dummy Load for Power Supply and Battery Testing

   EEVblog 13 people · 16 months · since Dec 2011

   Dave Jones builds a constant current dummy load from an op-amp, MOSFET and shunt resistor for testing supplies and batteries; a common starting design for DIY loads.

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 How to Make a Shunt Current Sense Resistor

   ElectroBOOM 5 people · 4 months · since Jan 2018

   An ElectroBOOM video on building a shunt to measure large currents, recommended as an entertaining way to learn safe high current measurement.

4. 

   4 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.

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.