First, led light stroboscopic cause analysis
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1, LED lamp beads and LED driver power does not match
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Under normal circumstances, a single foot 1W lamp bead withstand the current is 280-300mA, the voltage is 3.0-3.4V, if the lamp bead chip is not enough power, it will cause the light source strobe phenomenon, the current is too high, the lamp bead can not withstand, there will be a bright and off phenomenon, serious, it will burn the gold wire or copper wire built into the lamp bead, resulting in the lamp bead is not bright.
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2. The drive power supply is damaged
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May be the drive power is bad, this situation is good to deal with, as long as the replacement of another good drive power, the lamp will not flash.
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3, poor heat dissipation
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If the drive has over-temperature protection function, and the material heat dissipation of the lamp can not meet the requirements, when the drive over-temperature protection begins to work, there will be a flicker and a flicker phenomenon; For example, the 20W floodlight shell is used to assemble 30W lamps, and the heat dissipation work is not done.
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4, lamp water
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If the outdoor lamps also have a stroboscopic light phenomenon, that is, the lamp is in the water, and the consequence is that it is not bright; Generally, the beads and the drive are broken, therefore, the driver of the outdoor lamp needs to do a good job of waterproof treatment, if the lamp beads are broken, directly replace the light source.
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Second, the solution of led lamp stroboscopic
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1, increase the output electrolytic capacitor program
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If it is a voltage problem, directly increase the output electrolytic capacitor, you can let the lamp return to normal, \"increase the output electrolytic capacitor\
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2, the use of valley filling passive PFC scheme
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It is the most mainstream treatment method, using two large capacitors, and three diodes for power factor correction, there is a large electrolytic capacitor behind the rectifier bridge, the AC ripple absorption, through the inductor, or transformer to the secondary part of the current is direct current.
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3. Adopt a two-level scheme
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On the basis of isolating the power supply, adding a DC\/DC level can completely eliminate the influence of AC ripple; Electrical parameters can also fully meet the certification standards, but need to increase the cost, add a power management chip, and some peripheral circuits, the total cost of each lamp to increase about 7 yuan, in the sale price of the same precursor, will reduce corporate profits.
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led strobe how to solve, the above has been explained, I believe you already know what led strobe is going on, in the future, do not worry, patient troubleshooting. If you can not find the reason, do not continue to use, as soon as possible to find a professional master to repair, in case of potential danger.