650-Watt quarter-brick bus power electronics converters with 98 percent efficiency introduced by Vicor

ANDOVER, Mass., 18 March 2011. Vicor Corp. in Andover, Mass., is introducing the IBC048 series quarter-brick bus converterpower electronics modules for computing, data storage, networking, and power-over-Ethernet applications. The bus converters provide as much as 650 Watts at 9.6 or 12 volts from a nominal 48 volts within a 38-to-55-volt input range, and operate at as much as 98 percent efficiency, Vicor officials say.The bus converters are available as drop-in upgrades for industry-standard 5:1 and 4:1 converters, and expand on the Vicor (NASDAQ: VICR) IBC048 eighth-brick modules with 300- and 500-Watt power ratings. The IBC048 series, which uses Vicor's sine amplitude converter topology, is pin-compatible with industry-standard square-wave bus converters, which are limited by switching losses to low operating frequencies, low power densities, and low bandwidth, Vicor officials say.The VI BRICK bus converters use Vicor's patented ZCS/ZVS resonant converter technology that powers V.I Chips. Switching at about 10 times the frequency of square wave converters, IBC048 modules cut transient response time by a factor of 10, eliminating the need for external bulk capacitors.

For more information contact Vicor online at www.vicorpower.com.