AC/DC Power Supply achieves efficiency up to 90%.
Press Release Summary:
Measuring 3 x 5.3 x 1.35 in., 330 W Model XL330-54 delivers power density of 15 W/in³ with 13 cfm cooling. Open-frame unit provides 54 V/6.1 A and 12 V/9 A primary outputs as well as 12 V/1A auxiliary output. Maximum full-load efficiency of 90% is achieved through synchronous rectification, Or-ing MOSFETs, and active PFC design. Operating from universal AC input of 90–264 Vac, power supply offers active inrush current protection of 10.5 A at 240 Vac, which does not change during operation.
Original Press Release:
N2Power's 330W AC/DC Power Supply Achieves 15 W/in3 Power Density and up to 90% Efficiency
Open-frame unit saves space, cuts energy costs and increases system reliabilitySimi Valley, CA, - N2Power, a division of Qualstar Corporation (NASDAQ: QBAK), announces a new 330W AC/DC power supply that features an industry-leading combination of power density and efficiency. The 1.35-inch high, open-frame XL330-54 has a 3-inch x 5.3-inch (76mm x 135mm) footprint to deliver a power density of 15W/in3 with only 13CFM cooling, a space saving of 32% compared to typical 1U units of similar rating, most of which have a 6-inch x 4-inch (102mm x 152mm) footprint. Its maximum full-load efficiency of 90%, achieved through synchronous rectification, Or-ing MOSFETs and a unique active PFC design, means that the XL330-54 generates 23% less heat than most comparable power supplies, minimizing cooling requirements and increasing system reliability. The high efficiency delivers energy savings throughout the product’s life, providing greater return on investment.
The XL330-54 has two primary outputs: 54V/6.1A and 12V/9A, plus a 12V/1A auxiliary output. The 54V output is 2250VDC isolated from the other outputs making it Power-over-Ethernet (PoE) compatible. The design allows active current sharing on the 54V output for up to four power supplies to be operated in parallel. N+1 operation can also be configured.
Other features of the power supplies include universal AC input (90-264VAC) and active inrush current protection of 10.5A at 240VAC, which does not change during operation. The XL330-54 CS is RoHS compliant and meets all major international safety and EMC requirements.
N2Power’s Vice President and General Manager, Randy Johnson, said, “With the rising price of energy across the globe, engineers now appreciate that efficiency gains of just a few percentage points deliver substantial cost benefits throughout a product’s operating life. For example, when a power supply is 90% efficient, rather than 87% efficient, that’s a 23% performance improvement and energy saving. N2Power delivers this improvement without compromising the product’s compact size or other desirable features.”
The XL330-54 CS is priced from $165 each in OEM quantities of 500+. Sample units are available now.
N2Power power supplies are sold worldwide through a network of authorized representatives and distributors. Call +1 805 583 7744, or visit www.n2power.com for more information.
For further information and reader enquiries:
Bob Covey
Qualstar Corp.
Tel: +1 805 583 7744
covey@qualstar.com
About Qualstar Corporation
Qualstar manufactures automated tape libraries and power supplies. Its products are known throughout the world for energy efficiency and rugged, Simply Reliable designs yielding years of trouble-free operation. Qualstar tape libraries are sold, installed and supported worldwide to backup, archive and protect data from incidental and catastrophic loss. Its N2Power brand switching power supplies are sold worldwide to OEM manufacturers who require both industry- leading high power efficiency and very small size for their products. Qualstar Corporation is publicly traded on the NASDAQ National Market under the symbol QBAK. More information is available at www.qualstar.com, www.n2power.com or by phone at 805-583-7744.
