How to avoid the problem of stroboscopic in LED lighting?

as the LED lighting energy saving and comfort is higher and higher requirements of light quality and lighting, again will focus on stroboscopic stroboscopic and how to avoid.

is stroboscopic light intensity or brightness changes in a certain time period. Will be the stroboscopic in many lighting applications, including the slow motion on TV shooting ( Especially the sports channel) , tunnel lighting, the areas of general lighting and the use of rapidly rotating machinery in the workplace. Stroboscopic can affect human body health, influence degree depending on the frequency of stroboscopic and individual sensitivity to the stroboscope. While high frequency stroboscopic will have significant influence on the human body, but below the 120 hz low frequency stroboscopic is easy to affect human health.

a, then LED stroboscope how come?

produce stroboscopic for many reasons. For control device manufacturers, ripple current is one of the reasons, is an important produce stroboscopic the culprit. After the rectifier and filter ripple current is still the same communication components. Ripple current superimposed on the dc, with different frequency and curve. The ac component of the LED module power fluctuations occur, which in turn will make the change brightness. Number and frequency of superposition communication is a decisive factor in the production of stroboscopic.

the LED light source technology used by the carrier and it is also an important factor to produce stroboscopic lamps and lanterns design. For example, if the phosphor material used for the LED light source converter, then the material has the effect of capacity, will eliminate the superposition of a small part of communication.

2, how to avoid the problem of stroboscopic in LED lighting?

although LED itself has no stroboscopic risk, but for the LED light, especially through pulse width adjustable accentuates the stroboscopic light, even lead to a stroboscopic from the start. In order to avoid the stroboscope, adopt other ways that move light, such as simulation is feasible. To offset low value analog dimming light shortcomings, mixed dimming method is an ideal choice.

in the drive of ripple current data is the first of its kind in the stroboscopic risk indicator. If you want to get more reliable information to make a wise decision, to view the entire data on lamps and lanterns. Commonly used lamps and lanterns manufacturer to provide drivers, superimposed ac power, dimming method and details of frequency curve. Especially between 0 and 120 Hertz frequency curve, stroboscopic best illustrated by risk. Between 10 and 70 hz frequency range deserve special consideration, because the range of stroboscopic effects on human health is the largest. And, more importantly, completely avoid PWM dimming can basically ensure no stroboscopic environmental conditions.

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