Emerson IBCs operate with 97% conversion efficiency
-- Test & Measurement World, 3/21/2007 9:37:00 AM
Emerson Network Power offers two intermediate bus converters (IBCs) that are capable of delivering exceptionally high levels of usable output power with a conversion efficiency of 97%. The converters, which are from the Artesyn Technologies division of Emerson Network Power, comprise a 300-W eighth-brick and a 642-W quarter-brick.
Both IBCs are targeted at the telecommunications, networking, computing, and industrialelectronics markets. They are intended primarily for powering multiple downstream nonisolated point-of-load (POL) converters in distributed power systems with 9.6-V intermediate bus architectures. The IBCs are especially cost-effective for applications with well-regulated 48-V input voltages or for feeding general-purpose wide-input POL converters that can tolerate some supply variation.
The IBC60 quarter-brick and IBC32 eighth-brick IBCs operate from a 38-VDC to 55-VDC supply, have a fixed 5:1 conversion ratio, and generate an isolated, unregulated DC output. When fed with a 48-VDC supply, the converters generate a 9.6-VDC output. The IBC60 delivers up to 60 A – achieving a power density in excess of 400 Watts per cubic in. – and a typical load regulation figure of 2.5% for all load conditions. The IBC32 has a 32-A output capability and a typical load regulation figure of 2.3%.
The two converters utilize industry-standard pinouts and footprints and are based on a single-board package designed for through-hole board mounting. They have an installed height of just 0.48 in., making them suitable for system racks with very tight card pitches.
In OEM quantities of 1000, the IBC32 costs $45 and the IBC60 costs $60. Artesyn Technologies, www.artesyn.com.
