So, really high quality LED driver power supply should have what kind of features or to meet those requirements? Tektronix summed up the following main aspects:
(1) high reliability and life: the life of the drive power to the life of the LED relative to adaptation, in particular, like the drive power of the high power led driver installed at high altitude, maintenance inconvenient, the maintenance cost is also large;
(2) High efficiency: the structure of power supply installed in the LED lighting, which is especially important. LED luminous efficiency of high power led driver temperature decreases, so the LED heat dissipation is very important. High efficiency power supply, the loss power, heat lamps, reduces the temperature rise of the lamps is beneficial to delay the LED light failure.
(3) high power factor: With the increasing demands of the community’s quality of power supply, people are increasingly concerned about the electrical equipment of power quality and harmonics. Such as the EU has issued standards require power greater than 25W power supply must have a power factor correction circuit. And many other countries for 30 ~ 40W LED driver power supply, It is said that soon will also may power factor of a certain indicator.
(4) constant current driver: It is now common, there are two: one is a constant voltage source for the constant current source, each constant current source separately to each high power led driver. In this way the combination of flexible, all the way to the LED fault, does not affect the other LED’s work (led high bay lights), but the cost will be slightly higher.