What is an LED driver?
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Regardless of type, size, or power, all LEDs work best when driven with a constant current source since LED colour changes with small variations in driving current. LEDs often support varying system voltages and forward voltages, which can cause variations in LED brightness and colour. An LED driver is a self-contained power supply that has outputs matched to the electrical characteristics of your LED or array of LEDs. There are currently no industry standards (as of 2009), so understanding the electrical characteristics of your LED or array is critical in selecting or designing a driver circuit. Drivers should be current-regulated (deliver a consistent current over a range of load voltages). Drivers may also offer dimming by means of pulse width modulation (PWM) circuits. Drivers may have more than one channel for separate control of different LEDs or arrays. |
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| Date | Title | Blog | Views | comment number |
| 2012-05-09 |
Solving the case of the self-powered LED
( debugging LED remote ) |
Planet Analog | 6821 | 2 |
| 2012-03-17 |
Many end users prefer the convenience
( led dvd t6 ) |
kevin_sea's BLOG | 61 | 2 |
| 2012-02-21 |
Irratating meep in the night
( led smoke detector motion detector ) |
Max's Cool Beans | 13718 | 11 |
| 2012-01-31 |
I now have my own robotic ball (and I'm not afraid to use it)!
( led gosphero robotic balls ) |
Max's Cool Beans | 13718 | 11 |
| 2011-11-28 |
Peek at hot gadgets for 2012 (Part 2)
( null led wi-fi router ) |
Semi Conscious | 6542 | 3 |
| 2011-09-09 |
Video: Really cool electronic trick (how is this done?)
( electronics switch led ) |
Max's Cool Beans | 13718 | 11 |
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