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ATX Power Supply Reference Design Meets 80 PLUS Requirements

PHOENIX, Ariz – ON Semiconductor today unveiled the industry’s first open ATX reference design certified to meet 80 PLUS performance requirements for computing applications. The 250 watt (W) reference design addresses all functional blocks of the ATX power supply, including power factor correction, switch-mode power supply control and regulation, post regulation and output rectification. The design utilizes several of ON Semiconductor’s advanced power management devices and draws from its leading discrete component portfolio to achieve breakthrough performance.

“This certified 80 PLUS ATX reference design demonstrates ON Semiconductor’s commitment to delivering leading-edge power-efficient solutions to assist power supply designers in their quest to develop highly efficient power supplies,” said Andy Williams, vice president of ON Semiconductor’s Power Conversion Division. “We’ve worked closely with industry standards organizations and our customers worldwide to develop this economical 80 PLUS compliant power solution. ON Semiconductor will continue to introduce additional GreenPoint™ power solutions to address the growing demand throughout the electronics industry for power efficiency in both active and standby modes.”

80 PLUS is a national buy-down program administered by Ecos Consulting for desktop computers and desktop-derived servers that contain highly efficient power supplies. The initiative challenges computer manufacturers to incorporate internal power supplies that operate at 80 percent efficiency (or better) across several load points. ATX power supplies on the market today typically operate at 65 percent efficiency.

“ON Semiconductor’s ATX power solution shows great initiative and clearly demonstrates it is possible to build an energy efficient power supply that is also high performance,” said Andrew Fanara, director of ENERGY STAR® Product Development at the U.S Environmental Protection Agency. “This reference design will definitely help move the 80 PLUS program forward and has very positive implications for eventual ENERGY STAR® certification.”

In addition to passing rigorous internal testing, ON Semiconductor’s ATX reference design prototype was independently tested and verified to comply with the 80 PLUS program by EPRI Solutions Corporation in Knoxville, Tennessee. Additionally, the ATX reference design meets IEC1000-3-2 power factor requirements.

“We salute ON Semiconductor for developing such an innovative 80 PLUS design, and making it freely available to any manufacturer for use,” said Chris Calwell, policy and research director of Ecos Consulting. “This solution demonstrates that it is both possible and affordable to meet the needs of customers that demand high efficiency and power factor correction today.”

Jueves, 01 Septiembre, 2005 - 10:04
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