< p > outdoor led light source line kept flashing or a light out of a total of four possibilities: < / p > < p > < / p > < p > 1, outdoor led line lights and led driver power supply do not match, normal single foot 1 w lights bead under current: - 280
300 ma, voltage: 3.
4 v, if the light bead chip is not enough power will cause the light light stroboscopic phenomenon, high current lamp bead can't bear you a bright, serious phenomenon will turn the light bead built-in gold wire or copper wire burn out, lead to light bead is not on.
< / p > < p > < / p > < p > 2, may be the driving power source is broken, as long as you put on another good drive power supply, not flash.
< / p > < p > < / p > < p > 3, if the driver has over temperature protection function, and the material of lamps and lanterns of the cooling performance can not meet the requirements, drive over temperature protection start work will also have a flash of a phenomenon, such as: 20 w project-light lamp shell used to assemble the lamps and lanterns of 30 w, heat dissipation work was not well done would be the case.
< / p > < p > < / p > < p > 4, if outdoor led lines also have a stroboscopic light on a phenomenon, that is the lamps and lanterns into the water.
Consequence is shining with flashing is not lit up.
Lamp bead and drive is bad, drive waterproof do fine, just a broken lamp bead, replace the light source.
< / p > < p > < / p > < p > in an off-line low power led lighting applications, a common power supply topology structure type is to isolate the flyback topology.
To meet energy star from linear solid-state lighting standard 8 w led driver reference design as an example, because of the flyback voltage stabilizer sine square wave power conversion did not provide primary offset constant energy, dynamic self-supply (
Circuit may activate and trigger light flashing.
To avoid this problem, must enable primary bias to partial discharge in each half cycle, accordingly, need to choose appropriate constitute the bias circuit of capacitance and resistance value.
< / p > < p > < / p > < p > the human eye can generally perceived frequency of 70 hz light flashing, higher than the frequency does not perceive.
So in led lighting applications, if the pulse signal frequency is lower than 70 hz low frequency component, the human eye will feel the shine.
In the specific application, of course, there are many factors may lead to outdoor led line light flashing.
< / p > < p > < / p >