90 Watt LED power supply with active PFC
September 2014
Electrical Power & Protection
Thanks to the market trend for environmental protection there has been an explosive growth in demand for LED lighting. In order to address this, Mean Well has released its new 90 W single output LED power supplies with active PFC function – the NPF-90, NPF-90D and PWM-90 series. These three ranges all have setup time less than 500 ms and no load power consumption less than 0,5 W.
NPF-90 exploits the constant voltage (CV) + constant current (CC) mode design that allows this series to work ideally for the majority of LED lighting applications. NPF-90D further provides the 3 in 1 dimming function that allows lighting fixture designers to adjust the light intensity via 0-10 VDC, PWM or resistance. PWM-90 provides the constant voltage mode design and PWM style output as the dimming function. This enables the series to work with LED strips or luminaries using current limiting resistors and supply the complete dimming function at the same time.
NPF-90, NPF-90D and PWM-90 are all Class II power unit. The input accepts 90-305 VAC and the output supplies the DC voltages that LED lighting units or strips use most frequently. These three series all adopt the 94V-0 flame retardant plastic enclosure, and the interior is fully filled with heat conductive silicone. Working efficiency is up to 91% between -40 and 70°C using free air convection cooling. Protection functions include short circuit, overload, over voltage protection and over temperature. Suitable applications include indoor LED lighting, LED decorative lighting and LED architecture lighting.
For more information contact Ettienne van der Westhuizen, Current Automation, +27 (0)10 591 1713, [email protected], www.rectifier.co.za
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