90W LED power supplies offered with active PFC function

29th July 2014

Meanwell

Staff Reporter

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Responding to the demand for LEDs in the lighting market, MEAN WELL has released the NPF-90, NPF-90D and PWM-90 series of LED power supplies. The 90W, single output, LED power supplies are offered with active PFC function, setup times of less than 500ms, and a no load power consumption of less than 0.5W (for the NPF-90 it is less than 0.15W).

The NPF-90 series exploits the “constant voltage (CV)+constant current (CC) mode” design that allows this series to work for any major LED lighting applications. Lighting fixture designers will benefit from the NPF-90D's 3 in 1 dimming function which allows for the adjustment of light density via 0~10VDC, PWM signal, or resistance. The PWM-90 provides the “constant voltage mode” design, as well as the PWM style output, in addition to a 2 in 1 dimming function (0~10VDC or PWM signal). This enables the PWM-90 series to work with LED strips or the LED luminaries using current limiting resistors to supply the complete dimming function at the same time.

The power supplies all feature an input end which accepts the full range 90~305VAC, with the output end suppling the DC voltage that the LED lighting units or strips use the most frequently. The devices all adopt the 94V-0 flame retardant plastic enclosure, and the interior is fully filled with heat conductive silicone. Operating between -40℃ and +70℃ under free air convection, the working efficiency of the power supplies can reach 91%. Protection features include short circuit protection, overload or over current protection, over voltage protection, and over temperature protection.

The NPF-90, NPF-90D and PWM-90 series are all certified with the major international regulation standards such as UL8750 and EN61347-1, with the circuit design refering to the safety norm of household electrical appliances (EN60335-1). Suitable applications include indoor LED lighting, LED decorative lighting, and LED architecture lighting.