LED power requirements. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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LEDs. LED power requirements. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / LEDs

In order for LED lighting to be included in the list of traditional light sources, in addition to increasing the luminous efficiency and reducing the cost of the LEDs themselves, one more problem must be solved. This is problem specialized electrical supply LEDs and LED modules. It is unrealistic to talk about the fact that LEDs will work 100000 hours or at least 100000 hours without high-quality electrical power.

At first, the power supply must remain operational for a designated time resource of about 50 hours or more, while providing the required characteristics.

Secondly, the power supply must be current-stabilized (ideally, the current value should be stabilized according to the temperature dependence of the light-emitting crystal), have protection against overvoltage pulses and reverse polarity.

Thirdly, the price of all of the above should not significantly exceed the cost of the LED module.

Author: Koryakin-Chernyak S.L.

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