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LED Lights Flashing Common Causes And Solutions
- Feb 18, 2017 -

Usually the human eye can perceive frequencies up to 70 Hz flashes of light, higher frequencies are not perceived. So the LED lighting applications, if pulsed signals at frequencies below 70 Hz low frequency components, the human eye blinking would feel. Of course, in the specific application, a variety of factors can lead to LED light is blinking. For example, in the off-low-power LED lighting applications, a common power supply topology is isolated Flyback topology. According to the "Energy Star" solid state lighting standard 8W LED drive GreenPoint® off-line reference design, for example, as the Flyback regulator sine wave power conversion does not give primary bias power, dynamic self supply (DSS) circuit may activate and trigger light blinking. To avoid this problem, you must enable primary bias to partial discharges in each half cycle, accordingly, needs the right choices this biasing circuit of capacitor and resistor value.