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As most of us have noticed the old LED driver circuits have a flickering effect.
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This is why in our previous article we discussed about a low-cost LED driver system and even built one to test its performance.Īnother terrific problem of the AC LED drivers is the flickering effect. Also this additional circuitry leads to the increase in overall cost of the Light bulb. These traditional AC LED drivers use switching topologies and resistors to control the LED current, this switching causes heat which reduces the efficiency of the system. The major problem with the traditional high power AC to DC switching LED drivers is the power loss associated with it. In this article we will learn more about Driverless LED systems and its evolution over time. But, then the AC driverless LED bulbs were introduced which can be directly plugged into AC mains without any external driver modules. This driver will convert the AC power from mains to a suitable DC voltage to power the LED light.
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This has pushed designers to use an additional component called LED driver which is nothing but a type of AC to DC converter. That is, LED lights are driven by DC voltage, but all our mains power supply is AC. While it is known that LED lights are almost 90% efficient than incandescent bulbs and has a better lifetime than other AC bulbs, it still suffers from one setback. The global LED lighting market has seen a prolonged growth with a size valued at USD 45.57 billion in 2018. Earlier lighting systems employed different kind of bulbs like incandescent light bulbs, Compact Fluorescent Light bulbs (CFL) etc, but today with the advancements in LED light technology these Incandescent and CFL bulbs are quickly being replaced by LED lights. From small house to paved roads to big industries, we can notice AC lights illuminating our environment after the sun goes down.
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The Great American Businessman and Inventor of light bulb – Thomas Alva Edison once said that “We will make electricity so cheap that only the rich will burn candles”, which certainly has become the case today.