Quarter-brick power module

2 May 2012 Power Electronics / Power Management

Vicor has added to its IBC050 product line of wide input range VI BRICK intermediate bus converters (IBCs). The new IB050Q096T80N1-00 quarter-brick IBC module can provide up to 850 W of output power, making it well suited for demanding applications spanning enterprise, optical access and storage networks.

Available as a drop-in upgrade for industry standard 5:1 fixed ratio converters, the new module operates from a 36 V to 60 V input voltage range, with 2250 V d.c. isolation from input to output while achieving 98% peak efficiency. Rated at up to 80 A, 850 W from 55 to 60 Vin and 550 W from 36 Vin, the 58,4 x 36,8 x 10,5 mm quarter-brick module allows designers to conserve valuable board space and achieve full load operation at 50°C with 400 LFM airflow.

The device’s open frame construction facilitates airflow above and below to minimise temperature rise of downstream components. Using Vicor’s Sine Amplitude Converter topology, IBC050 series modules are pin-compatible with industry standard ‘square wave’ bus converters. Operating at 1 MHz, the IB050Q096T80N1-00 cuts transient response time and eliminates the need for bulk capacitors across the intermediate bus.

Designers can take advantage of Vicor’s new IBC Power Simulation tool to interactively model the electrical and thermal performance of the IB050Q096T80N1-00 IBC module in application-specific operating conditions and thermal environments. Available to users via Vicor’s PowerBench online design centre, the tool enables designers to quickly and easily select, simulate and optimise IBC performance under a variety of system thermal and electrical conditions.

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