Power Switcher provides wide-range adjustability.

Press Release Summary:



Model LPQ142, with active power-factor correction, offers user adjustability on 3 of its 4 output voltages, one with range of ±3.3 to 25 V. It features universal input range of 85-264 Vac and 120-300 Vdc, and frequency range of 47-63 Hz. Providing 3.45 W/cu in., unit is 1.5 in. tall and 1U-rack ready. It operates at 75% efficiency while delivering full load. With 30 cfm of forced air across open-faced unit, LPQ142 can deliver full 145 W of output power to its loads.



Original Press Release:



Astec Power Introduces 1U, 145 Watt, Quad Output, Compact Switcher



Power Factor Corrected Unit Features Wide Range Adjustability on Three of Its Four Outputs

CARLSBAD, Calif. - September 3, 2002 - Astec Power, a leading merchant supplier of power conversion solutions, today announced the arrival of the LPQ142 into its low power switching family. With user adjustability on three of its four output voltages, one with a range of ± 3.3V to 25V, this power supply is an ideal solution for any low profile application that requires tightly regulated, low output ripple, quad DC power. Active power factor correction makes the LPQ142 comply with EN61000-3-2 requirements for input current harmonic content. The LPQ142's wide universal input voltage range (85-264 VAC and 120-300 VDC) and frequency range (47-63 Hz) make it transcend international borders.

Boasting 3.45 watts per cubic inch, the 1.5 inch tall LPQ142 is 1U (1.75-inch) rack ready. Reflecting on the release of the LPQ142, Tom Tillman, the Astec Power product manager stated, "The flex-appeal that the wide range output adjustability gives to this supply will make it popular with designers who need a plug-and-play solution for their low-profile applications, such as remote networking devices, single-board computers and high speed Ethernet appliances."

Operating at an efficient 75 percent while delivering a full load, the LPQ142 has single wire current sharing on the main output, which has a wide adjustability range of 3.3V to 5.5V.

With 30 CFM of forced air across an open-faced unit, the LPQ142 can deliver a full 145 watts of output power to its loads. The unit can be oriented for lengthwise or crosswise airflow, giving designers layout flexibility. The LPQ142 can also be convectively cooled, and an optional cover is available for the chassis. Full rated output power can be delivered while operating within an ambient temperature range of zero to 50 degrees Centigrade (°C). The LPQ142 can continue to deliver power between +50°C and +70°C, as long as the maximum power drawn from the unit is de-rated by 2.5 percent per °C of ambient
temperature above +50°C.

The LPQ142 has been through Highly Accelerated Life Testing (HALT) and has more than 550,000 hours of demonstrated Mean Time Between Failures, at 25°C. It also complies with the major worldwide safety and performance standards and has UL, CSA, CE, CB, NEMKO and VDE approval markings. Designed to meet FCC and CISPR22 Level B conducted emissions, the LPQ142's built-in Class B EMI filter also meets most industry standard noise and immunity requirements when properly mounted and grounded within an approved equipment chassis.

Available now, OEM pricing starts at $ 129.00 each. For more
information, contact a local Astec Power representative, who can be found on the Astec Power Web site at astecpower.com. Click on the SALES OFFICE button, on the home page, to locate the closest Astec Power representative.

About Astec Power

Astec Power is a leading international supplier of power conversion solutions. A wholly owned subsidiary of Emerson (NYSE:EMR), Astec Power is headquartered in Carlsbad, CA.Dedicated to advanced research and development, state of the art design, sophisticated automation and in-process testing, Astec Power produces standard, modified standard, and custom AC/DC and DC/DC power supplies, which range in size from one to 7,500 watts. In order to satisfy and continue to grow its international customer base, Astec Power has operations on three continents. Through this strategic allocation of its manufacturing resources,Astec Power delivers competitively priced quality products worldwide, in a timely and reliable manner.

About Emerson

St. Louis-based Emerson < gotoemerson.com> is a global leader in bringing technology and engineering together to provide innovative solutions to customers in process control;
electronics and telecommunications; industrial automation; heating, ventilation and air conditioning; appliance and tools. Emerson's fiscal 2001 sales were $15.5 billion.

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