Mean Well has introduced the HSP-150 series of 150 W enclosed AC/DC power supplies for LED display applications. The product family incorporates an active PFC function and provides three low output voltage models (2,5 V/3,8 V/5 V), which are designed to drive RGB (red, green and blue colour) LED chips.
The units boast efficiency as high as 90%, allowing them to be cooled by free air convection from -30°C to +70°C ambient temperature for 150 W (30 A), and for 200 W (40 A) by suitable forced air. To make them suitable for humid and dusty environments, they are equipped with basic anti-moisture and anti-dust ability thanks to conformal coating protection on the PCB.
To solve the voltage drop problem caused by output wiring, the HSP-150 has a built-in remote sense function to compensate the voltage drop. Other standard functions include an adjustable resistor to fine tune ±10% rated output voltage, short circuit, overload, over-voltage and over-temperature protections. All series comply with UL, CUL, TUV, CB and CE. Applications include LED electric displays, LED TV walls and LED moving signs.
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