Not long ago, MEAN WELL announced the release of a 185WAC-DC multi-channel constant current power output LED power supply LDV-185 series products with active PFC. This series of products can show 6 channels/700MA or 12 channels/350MA constant current output, different from other MEAN WELL AC-DCLED power supplies is the built-in DC-DC constant current LED driver IC, which can ensure the current sharing of output from all walks of life to pursue the perfect LED load service life, and can reduce the EMI impact of the overall lighting system software.
It is understood that there are two types of (Blank/D-type) models for this series of products to choose from: Blank-type is the basic model without "timing to perform the dimming effect", and D-type (purchase) is the model with the timing of the dimming effect: when the AC power supply system will be recorded through the internal single crystal chip (MCU) control board at the beginning, according to the burned counting program process to achieve more than three-stage timing execution of the dimming (a total of four chromaticities), Manipulate the total output current flow of the LED power supply at different time periods. In addition, considering the harsh natural environment application requirements of indoor and outdoor high and low temperatures, the human body design scheme uses an all-aluminum chassis and stainless steel bolts, and glues are applied internally to maintain a high anti-fouling and waterproof level (IP67).
In addition, this series of products can be applied to the general 230VAC voltage area, but also suitable for 277VAC power supply systems in Europe and the United States. Among them, the active power factor correction (ActivePFC) function is built, which can consider the EN61000-3-2 harmonic ClassC level of EU countries under the ≧condition of 75% load and achieve the provisions of the policy and regulation PF>0.9 of LED lamps, and also has the working ability of industrial production level to withstand lightning surge 4k HD V (EN61000-4-5).
In terms of route architecture, this series of products applies excellent parallel resonance (LLC) technology, which promotes the working efficiency of up to 88% (the same number of LEDs in series/total application power >). 120W standard), so it can only use natural air-cooled heat exhaust at -30~+70°C to meet the office environment regulations for outdoor applications in various countries around the world. Its normative functions include overcurrent protection, overload maintenance, overvoltage maintenance, over-temperature reduction of output current and other maintenance functions. The input method is equipped with an 18AWGx3C (with FG)/30 cm power plug, and the output method is equipped with a 22AWGx13C/15cm/15pin waterproof connector + 22AWGx12C/15cm/12pin waterproof connector. LDV-185 has EN61347-2-13 (LVD) and CE certification (EN55015/EN61547), which is key to lock in a variety of outdoor LED lighting related applications, especially LED luminaire design solutions that require multi-channel connection drivers. |
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