The principle of LED dimming power supply?

LED dimming driver power is widely used in lighting fixtures, and its uniqueness is superior to traditional lighting methods. In addition to improving the quality of life, improving the efficiency of the light source, and prolonging the service life of the lamps, the LED dimming driver also uses its unique dimming function to change the color temperature and brightness of the light, and fully realize energy-saving applications as its greatest advantage.

The PWM dimming power supply achieves the effect of brightness level by turning the LED on and off with PWM waves to change the on-time of the forward current. PWM dimming is the mainstream dimming technology currently used in LED intelligent dimming power supply products. This method is based on the fact that the human eye is not sensitive enough to brightness flicker, so that the load LED is bright and dark.

If the light and dark frequency exceeds 100Hz, the human eye sees the average brightness instead of LED flickering. The basic principle of pwm dimming, in fact, in the actual application of the product, can be understood as connecting a MOS switch in series with the LED load, and the anode of this series of LEDs is powered by a constant current source. Then a PWM signal is applied to the gate of the MOS tube to quickly switch the LED series to achieve dimming.

smarts power 150W PWM dimming led driver, unique junction box and power integrated design, can protect the power well, the product has passed UL certification, suitable for lighting projects in North America, More information if you would like to know Smarts Electronics’s led power supply, please login https://www.swinpower.com/ Or contact with Mr. Steven(skype: steven821228 mail:sales1@smartselectronics.com)