WB201-NWW28H

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Light-emitting diodes (LEDs) can be used as replacements for traditional incandescent and fluorescent lights, offering greater energy efficiency and potentially longer lifespans than those bulbs. The WBT201-NWW28H LED driver is the ideal fluorescent and high-pressure sodium (HPS) replacement for a variety of applications and offers a spectrum of advantages to users. This article will discuss the application fields of the WBT201-NWW28H as well as its working principle.

Application Fields

The WBT201-NWW28H is a constant power driver designed to power LEDs which are replacing fluorescent and HPS lights. This type of LED driver is finding plenty of uses for HID and fluorescent light replacement in industrial, commercial, and residential lighting applications. Examples include parking lots, parking garages, streets, highways, loading lots, schools, office buildings, retail spaces, and other large, open areas.

The WBT201-NWW28H is ideal for lighting applications because it ensures reliable performance and low power consumption. It is equipped with a flicker-free constant power current output, wide-range temperature control, and an optional adjustable output current to accommodate different LEDs and levels of brightness. The driver can deliver up to 54 watts per output channel.

The WBT201-NWW28H is UL recognized, has an IP67-rated housing, and also has a robust, fully potted construction that can make it a suitable replacement for exterior lighting applications as well. This driver has a wide input voltage range (40V - 285V) which makes it ideal for on-site adjustments. Additionally, it comes with an integrated onboard EMI filter for those locations with higher noise levels.

Working Principle

The WBT201-NWW28H LED driver is a constant current LED driver that works on the concept of “current-mode control”. This is a method of providing a constant current to an LED, which will then produce a consistent level of brightness, regardless of the power circuit’s characteristics. This is possible because the driver actively monitors the level of current and constantly adjusts it as needed to maintain constant brightness.

The first stage of the current-mode control process is the detection of the LED’s input voltage. This is done by measuring the voltage at the LED’s cathode terminal. The driver then compares this voltage to a reference voltage, which is determined by the user. The difference between these two values is then used to determine the current output.

The next stage is the compensation stage. During this stage, the LED driver compares the current output to the desired output. If the current is too low, then the LED driver will increase the output current until it reaches the desired level. Similarly, if the current is too high, then the LED driver will decrease the output current until the desired level is reached.

Finally, the driver sets the voltage by adjusting the output voltage based on the output current. This ensures that the LED will maintain a consistent level of brightness. The driver does so by continuously adjusting the voltage until the desired current level is achieved.

The WBT201-NWW28H is an ideal solution for lighting applications because of its constant power current output and wide-range temperature control capabilities. Its robust construction and adjustable output current make it a suitable replacement for fluorescent and HPS lighting in a variety of applications.

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