LED Power Supply works as AC adapter for laptop
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 correct power supply to function and perform at their best. Just as Laptops need AC adapter, fluorescent demand ballast, LED lights & displays require suitable power supply as well. What is an LED driver? LED driver is know as LED power supply, which is the power source for an LED system. This guide of LED drivers will cover constant voltage or constant current led driver, dimming technology for led power supply, quality, control of led driver, and etc. The article is focusing on the LED industry. Below, we discuss when you need an LED driver, why you need an LED driver, and what type of driver you may need.
The working voltage of LED light is DC, which means every LED light source requires a driver to transform the AC power to DC. Some LEDs already include an integrated driver within the bulb. LEDs designed for household use (global bulbs with E26 / E27 or GU24 / GU10 bases and that run on 240V or 120V) typically already include a driver. However, low voltage LED light sources, such as some MR- bulbs (MR GU5.3s, MR8s, and MR11s) and tape light, as well as certain fixtures, panels, or outdoor-rated lights, usually require a separate driver. When an LED that requires a separate driver stops working before the end of its rated lifetime, it can usually be saved if the driver is replaced.
- LEDs are designed to run on low voltage (12-24V), direct current electricity. However, most places supply high AC voltage (120-277V), alternating current electricity. An LED driver’s main purpose is to rectify higher voltage, alternating current to low voltage, direct current.
- 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 (measured in amps). Too much or too little current can therefore cause light output to vary or degrade faster due to higher temperatures within the LED. In sum, LED drivers serve two purposes: to convert higher voltage, alternating current to low voltage, direct current, and to keep the voltage or current flowing through the circuit at its rated level.
Read more information from LED Driver: The Definitive Guide
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