New Industry Products

SynQor Debuts BusQor Series Bus Converter Modules

August 19, 2002 by Jeff Shepard

SynQor Inc. (Hudson, MA) announced an innovative dc transformer or bus converter module in an industry-standard, quarter-brick-sized package. The BusQor Series is capable of delivering up to 240W of total output power at 12V, without a heatsink. The converter module employs synchronous rectification and a patented topology to achieve 96.5 percent efficiency at full rated load. The module is suitable for computer servers, enterprise networking equipment and other applications that use a 48V (+10 percent) input bus.

The BusQor converter accepts a nominal 48V input (42V to 53V range) and delivers an unregulated, stepped-down voltage of 12V (+10/-15 percent) with 2,000Vdc input-output isolation. The quarter-brick-sized units can deliver up to 20A at 12Vout for a total of 240W of output power, resulting in power densities of 167W/in³. Total power dissipation is 9W at full load due to efficiencies of up to 97 percent.

The BusQor converter features an industry-standard, quarter-brick footprint of 1.45in x 2.3in, and a low profile of 0.43in. Advanced control and protection features include on/off control, 2,000Vdc isolation, input under-voltage lockout, output over-voltage shutdown, short-circuit protection and thermal shutdown. The BusQor Series complements SynQor’s broad offering of single- and dual-output, high-efficiency converters that offer a no-baseplate, no-heatsink design.

The BusQor 12Vout, quarter-brick converters are available immediately in sample quantities and will begin production volume shipping in September 2002 direct from SynQor and through its network of distributors. The modules are priced at less than $60 in OEM quantities.