Multiple-Stage Output Current LED Power Supply Developed by Mean Well
In response to the demands of intelligent LED lighting control and to provide a flexible power solution for project style lighting design, Mean Well Enterprises Co. Ltd. developed the 40W/60W multiple-stage output current LED power supply LCM-40(DA) and LCM-60(DA) series. With a "constant current output" design, the output current level can be flexibly selected by the built-in DIP switch. The basic models, LCM-40 and LCM-60, are designed with "2-in-1" dimming function (0-10Vdc and PWM signal), while the digital control models, LCM-40DA and LCM-60DA, are built-in DALI interface and push dimming function.
These new units can fulfill the increasing demands of intelligent digital dimming applications. Featuring with 180-295 Vac and built-in two stage PFC function, these new series comply with harmonic current limitation per EN61000-3-2 Class C (>35% load) and also fulfill PF>0.9 if loading over 35%. In addition, they possess 2KV surge immunity ability (EN61000-4-5, heavy industry level) between Line and Neutral, which complies with the related lighting requirements.
With up-to date high performance circuit topology, LCM-40(DA)/60(DA) possess up to 91.5% of high efficiency, so they can be cooled by free air convection from -30℃ to +60℃ ambient temperature. Built-in temperature compensation function, by connecting an external temperature sensor (NTC resistor) between the NTC+/- terminals, the output current could be correspondingly changed with the detected temperature to ensure the long lifetime of LEDs.
In addition, they equip with synchronization dimming function that can operate 10 drivers (max.) synchronously in response to the dimming control signal of LED lighting systems with multiple lighting fixtures. LCM-40(DA)/60(DA) are rectangular and low profile (23mm) plastic enclosed power supplies. Different from the general design with input in front and output in rear, the I/O connection of these new models are changed to the same side, which allows system designer a more convenient wiring installation. Other standard functions include Class II design (no F.G.), built-in 12V/ 50mA auxiliary output (for driving fan), protections for short circuit, over voltage, and over temperature.
All models comply with certificates per UL8750, ENEC EN61347-2-13, and EN62384 of lighting regulations. LCM-40DA and LCM-60DA also comply with IEC62386-101, 102, 207 norms per DALI lighting control systems. Suitable applications include LED commercial lighting, office lighting, indoor LED decorative lighting, etc.
