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Now most of the low dimming drivers are designed with PWM mode to get low output, but they have the problems of strobe flickering under cameras and potential audible noises. To solve the problems, uPowerTek released the first constant current reduction mode 0.1% dimmable LED driver in the world, the BSR-055 series. Compared to other
Today uPowerTek released a new add-up to the BLD (universal input) and TLD (200-480Vac) product family. Now more and more luminaire designers released that the thermal feedback and protection of LED module (Lamp OTP) is essential to a high quality luminaire and in smart lighting systems, luminaire temperature information is also sometimes required. The luminaire
uPowerTek today announced a new product line (150-360W) for linear horticultural lights for 400Vac input applications. The great thermal management design makes the product suitable for high ambient temperature usage. Also it has the great function of thermal foldback by sensing the luminaire temperature. This new SVR series are designed with the features: Supply Voltage:
Introduction LED dimming has advantages in terms of energy savings, enhanced ambience, improved light source efficacy/ lifetime…etc. The dimming performance is mainly determined by the LED source and driver. Generally speaking, the LED source can be simply divided into two categories: LED diodes only and LED diode with resistor. Sometimes LED source is designed as
Model: BLD and TLD series Output type: Constant Current or Constant Voltage Output Power:50-400Watt Definition * A short press (50-600ms) switches the device on or off * A long press (> 600ms) fades the connected operating device alternately up and down (between 2 and 100%). Up and down slew rate is 20%Io/second. * With a push on the switch longer than 15 seconds all LED drivers will synchronize at a 50% light level and have the same point of departure for dimming
After half year test, uPowerTek announced that the BLD series support operating under 380Vac for 2 hours. Because of the unique reliability design and great design margin, BLD series were proved to be able to support this tough feature, which especially needed for some applications where the grid is not stable or the wiring is
Overview Nowadays more and more strips or signage need dimming function to save energy further. And there are mainly two methods to dim, one is constant current mode dimming and the other is PWM mode dimming. This article compares the two ways and tells why PWM dimming is better than constant current. Definitions PWM (Pulse
Today uPowerTek announced the new NFC programmable constant voltage LED drivers including 320W and 400W. The output voltage is 24V (100-115% adjustable) and the reason of adjusting the output a little bit higher than the set point is the cable voltage drop in the high output current condition. This product can be widely used in
Currently more and more luminaires are using the intelligent controllers for smart lighting system or fans to cool down the fixtures so they want to use a DC power source which is normally 12V or 24V with small power like 1~3W. Basically there are two solutions to have the small power, one is using an
DALI is a very popular dimming and control technology in the world, but there are two many concepts and new technologies in recent years, so we write this article to help you understand the DALI dimming technology and help you to be a DALI expert, we believe it will help your work, keep reading. 1
LED lighting systems continue to soar as we can see everywhere. But do you know that there is a driving force as the key component behind the LED fixtures? They are the LED drivers. The LED power supply regulates the LED fixture’s power (voltage or current), thus precisely controlling the light output. In addition, high quality LED
LED lighting penetrates everybody’s life, becoming more intelligent and more sophisticated. When designing high quality and excellent luminaire, the design engineer must carefully understand the LED Driver since it is the heart of a light fixture. This article describes the most frequently used LED driver concepts and provides the methods to select a suitable and