Sunday, May 20, 2018
Publication Date: 10/1/2007
Archive >  October 2007 Issue >  New Products > 

Low-Noise Power Supply from Lambda
Low-profile power supplies.
San Diego, CA — Lambda has introduced a new family of low cost, low noise and low profile 600-watt single output AC-DC power supplies that meet a wide range of indoor and outdoor applications including LED displays/signage, self-serve kiosks, automatic test equipment (ATE) and factory automation. The SWS600L series offers a choice of six different output voltages including 3.3, 5, 12, 24, 36, 48 and 60VDC.

For non-standard system voltages, the power supplies can provide a wide output voltage adjustment range of up to ±20 percent. On most models, the use of an external 1 to 6V input enables the supply to be remotely adjusted over the extremely wide range of 20 to 120 percent of its nominal output voltage. For example, the 36V model can be remotely adjusted down to 7.2V and up to 43.2V. This feature allows the SWS600L series to be used as inexpensive programmable supplies for test and measurement applications.

The 24V model has a peak output power of 744 watts. Important standard features include active power factor correction, high input transient protection, remote on/off, a 12V 0.1A auxiliary output, fan fail alarm, green LED on-indicator, and a DC output-good signal. Operating over a temperature range from -20 and +74°C with a low temperature start-up capability (100 percent load start up at -40°C), it is a reliable choice for systems that experience temperature extremes, such as outdoor road traffic signs. The inclusion of a temperature-controlled fan that minimizes the acoustic noise means that the SWS600L is equally suited for indoor applications such as powering laboratory equipment, vending machines, kiosks and animated advertisement signs.

The power supplies are small in size and easily fit into 2U enclosures, with a low profile of just 2.4-in. high and length of only 7.48-in. The air vents on the front and rear of the supplies facilitate zero stacking capability, allowing up to five units to be stacked one on top of the other without requiring gaps between them. An active current share feature enables multiple units to share the load evenly when they are used together for high load and/or redundant applications.

The power supply operates with a universal input from 85 to 265VAC. Input transient protection meets IEC61000-4, and the unit has been shock tested to satisfy MIL-STD-810F 516.5 Procedure I, VI and vibration tested to MIL-STD-810F 514.5 Category 4, 10. The SWS600L is CE marked and meets Class B EMI standards and is safety-approved to UL, CSA, EN60950-1, IEC61010-1, and EN50178.

For more information, contact: Lambda Power, 3055 Del Sol Blvd., San Diego, CA 92154 800-526-2324 or 619-475-4400 fax: 619-429-1011 Web:

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