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What is an LED driver?
Regardless of type, size, or power, all LEDs work best when driven with a constant current source since LED color changes with small variations in driving current. LEDs often support varying system voltages and forward voltages, which can cause variations in LED brightness and color.
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.
EE Times India total search 17 Related Posts
Date Title Asker Views/Replies Forum
2009-12-24 White LED driver promises up to 55% power saving
Jekay 1581 / 1 Talk Shop
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2009-03-17 Tiny flash LED driver suits advanced handsets
james_zl 1180 / 0 Talk Shop
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2010-05-04 Offline LED driver
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2010-02-13 Maxim four-digit, 5-by-7 matrix LED driver saves power
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[?Article Comments?]
2011-01-03 LED driver with PFC, phase dimming decoder
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2012-05-19 LED driver reference design touts 90% efficiency
Visitor 867 / 0 Talk Shop
[?Article Comments?]
2010-04-30 LED driver integrates power factor correction
1272633664517 1388 / 1 Talk Shop
[?Article Comments?]
2009-04-13 LED driver IC touts voltage, current protection
위한 ?12 1407 / 1 Talk Shop
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2009-01-10 LED driver handles up to 60 white LEDs
1231416045532 1409 / 3 Talk Shop
[?Article Comments?]
2010-09-04 LED driver combines PFC, AC/DC conversion
Visitor 1184 / 1 Talk Shop
[?Article Comments?]
2015-01-27 ISL97635 SMBus LED driver programming instruction
Visitor 787 / 2 Talk Shop
[?Article Comments?]
2013-06-04 Employ SSL2101, SSL2102 dimmable mains LED driver
Visitor 788 / 0 Talk Shop
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2011-11-17 Demonstration/evaluation tool for CAT4016 16-channel constant-current LED driver
Visitor 834 / 0 Talk Shop
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2011-06-07 6W LED driver designed for indoor lighting
Visitor 1063 / 0 Talk Shop
[?Article Comments?]
2008-02-19 350mA buck boost LED driver using bipolar junction transistors, high side current sensing and a NCP3063 controller
Minhaj 2215 / 2 Talk Shop
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