Today the Semiconductor suppliers generally recommend TRIAC dimmer led driver, In fact, not because the dimmer way have what special superior performance, just convenient for consumers
today a lot of Europe and America market is in use family TRIAC dimmers adjust to incandescent lamp light,because they expect to use LED light to replace incandescent bulb, And don't need to existing infrastructure to any modification and dont undertake any work to wiring
The problem to the capacitive loads of LED lighting lamps is that TRIAC dimmers will bring five adverse effect, so not strictly a high-quality dimming technology
NO.1:TRIAC dimmer inevitably will destroy the power factor, because it USES cut waves move light way, especially when the depth that move light, power factor can become very low, and then affects the quality of the power grid
NO.2:TRIAC dimmer have serious EMI interference, because when the load is capacitive, conduction deadline will be in the output current waveform produces strong impulse, and this impulse current can bring serious EMI interference
NO.3:TRIAC dimmer will result in a complete lamps power conversion efficiency is low, the when depth dimmer, efficiency will be lower than 20%
NO.4:TRIAC dimmers and LED lighting lamps and lanterns is not matching, and this easy to cause the output flashing light problems, affects consumers use experience, even causes health problems
NO.5:TRIAC dimmers can bring serious THD problems, and international energy standard if EN61000-3-2 began to demand strict THD norms
In short, it is not a good choice to using TRIAC dimmers to adjust LED light. It will be a more and more difficult to correct the inferior products for energy conservation and environmental protection, electric power system and the average consumer, suggest you take some of the other intelligent dimmer technology
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