S.A. Loskutov - Ph.D. (Eng.), Associate Professor, Kaluga branch, Bauman MSTU E-mail: sergel-75@yandex.ru V.E. Drach - Ph.D. (Eng.), Associate Professor, Kaluga branch, Bauman MSTU E-mail: drach@bmstu-kaluga.ru A.E. Korchikova - Master student, Kaluga branch, Bauman MSTU E-mail: korchickowa@yandex.ru

Due to increasing energy regulations, most people are familiar by now with the long life spans and energy savings associated with light-emitting diodes (LEDs). However, many are not aware that these innovative light sources require specialized devices called LED drivers to operate. LED drivers (also known as LED power supplies) are similar to ballasts for fluorescent lamps or transformers for low-voltage bulbs: they provide LEDs with the electricity they require to function and perform at their best. In general, LEDs require drivers for two purposes: 1. LEDs are designed to run on low voltage (12-24V), direct current electricity. However, most places supply higher voltage (120-230V), alternating current electricity. An LED driver rectifies higher voltage, alternating current to low voltage, direct current. 2. LED drivers also protect LEDs from voltage or current fluctuations. A change in voltage could cause a change in the current being supplied to the LEDs. LED light output is proportional to its current supply, and LEDs are rated to operate within a certain current range. Therefore, too much or too little current can cause light output to vary or degrade faster due to higher temperatures within the LED. In the article, the main principles of modern LED lighting devices design are being defined. The actual problems of its implementation and usage are highlighted. A new advanced driver of LED matrix is offered by the authors. Schematic simulation was aimed to optimize components\' parameters.

 

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