Lighting for the 21st Century
| INTRODUCTION |
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A special supplement to EDN
Published April 9, 2009
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Enlightenment on LEDs
By Margery Conner, Technical Editor
Practical, inexpensive HB LEDs (high-brightness light-emitting diodes) are here. Now, what can we do with them, and what will be their impact on electronics and consumers? |
| FEATURES |
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Solid-state lighting and efficiency from a global perspective
By Margery Conner, Technical Editor
What if an increase in lighting efficiency does not result in less energy consumption but in more lighting for the same amount of energy? |
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A fail-safe approach to LEDs
By Jeff Perry, National Semiconductor
Choose the right high-brightness LED and protect it from overtemperature conditions. |
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Inverting buck-boost converter regulates LED current
By John Betten, Texas Instruments
When input- and output-voltage ranges overlap and are "dirty" to boot, consider biasing on LEDs with a negative voltage. |
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Solving the LED-driver challenge for light-bulb replacement
By Silvestro Fimiani, Power Integrations
The Department of Energy is offering a prize of as much as $10 million to create the first solid-state replacement for the 60W incandescent light bulb, so you know it's a problem. Here are some suggestions for how to address high-efficiency, power-factor, and phase-dimming-compatibility requirements. |
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