LED90W-257-C0350-D

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LED drivers are a critical component in effectively utilizing and managing LED light systems. LED driving technology is constantly evolving to enable the most efficient light to be produced, and this is demonstrated by the LED90W-257-C0350-D. Whether by using the right driver or element, the luminaire designer has the control to open up their lighting solution potential and bring their creations to life.

Application Field

The LED90W-257-C0350-D is a universal input voltage Current Regulated LED Driver with a maximum output power of up to 90W and constant current output of between 250 and 350mA. It has an input voltage range of 90Vac to 305Vac in an optional 100-347Vac range and features active power factor correction. This driver offers flicker-free dimming, including both digital (DMX512, DALI, TRIAC, etc.) and analog (Lead or 0-10V DC) dimming capabilities.

This driver can be used in a broad range of indoor and outdoor lighting applications, such as industrial lighting, commercial lighting, urban lighting, architectural lighting, entertainment lighting, street lighting, landscape lighting, and more.

Working Principle

LED90W-257-C0350-D driver adopts constant voltage + constant current output technology. The voltage control loop will measure the load current and adjust the output voltage to maintain constant current.The closed-loop voltage control technology is high-performance, stable and high-efficiency, with line voltage regulation < ±0.5%, load regulation < ±0.5%, low earth leakage current, short circuit protection, over-voltage protection, over-temperature protection.

The output voltage of the LED90W-257-C0350-D is based on a series of resistors and a reference voltage. The reference voltage is provided by an internal voltage regulator and is used as the comparison voltage to measure the actual output voltage. The output voltage of the driver is adjusted by changing the resistance on the output of the drive via an internal voltage reference. When the measured voltage is lower than the reference voltage, the drive increases the output voltage to bring it back up to the nominal value.

The LED90W-257-C0350-D has improved active power factor correction (APFC) capability, which is an important feature for efficient power supply. This driver solves the problem of power factor decreasing as output power increases. The APFC circuit increases power factor by using a certain power calculation, and then provides an additional current to make the current phase-angle of the output voltage in line with the phase-angle of the input voltage.

Conclusion

The LED90W-257-C0350-D driver is a versatile, high efficiency device designed for cost-effectiveness and reliability. It offers many impressive features and is suitable for a wide range of applications. Its constant voltage and current output technology helps maintain consistent light levels and efficient power supply. As a result, this driver is perfect for creating a reliable, uniform illumination experience.

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