EET

Bus converter achieves more than 98% peak efficiency

Vicor Corp. announces its IB050Q096T70N1-00 - a high power, wide input range VI BRICK Bus Converter. Available as a drop-in upgrade for industry standard 5:1 converters, this new quarter brick operates from a 36 to 60 V input voltage range at power levels to 750 W, with 2,250 Vdc isolation from input to output, while achieving greater than 98% peak efficiency.

The IB050Q096T70N1-00 expands on the company's IBC050 series of intermediate bus converters. With its wide input range, this product complies with ETSI EN300 132-2 standard for -48 V telecom applications requiring 5:1 bus conversion. Its input-to-output isolation complies with IEEE 802.3 Power-over-Ethernet (PoE) standards. Owing to its low (3.4 mOhm) effective output resistance, the IB050Q096T70N1-00 module supports bus voltages of 7 to 12 V over the line range and up to 750 W output at, or above, a 54 V input.

According to company sources, the IBC050 series modules, using Vicor's Sine Amplitude Converter topology, are pin-compatible with, technologically superior to, and offer higher performance than industry standard "square wave" bus converters, which are fundamentally limited by switching losses to low operating frequencies, low power densities and low bandwidth. Operating at 1 MHz, the IB050Q096T70N1-00 cuts transient response time by a factor of 10 and eliminates the need for external bulk capacitors. Superior power density and conversion efficiency enable competitive advantages for OEMs seeking to maximize performance across a range of applications, including telecommunications, computing, data storage, networking, and Power-over-Ethernet.

The IB050Q096T70N1-00 has been optimized to address challenging thermal environments without costly heat sinks. Full power is available at 55° C ambient and only 200 LFM of airflow, while unprecedented power throughput is made possible at up to 85° C ambient with varying air flow rates.

For more information, contact Vicor Corp., 25 Frontage Rd., Andover, MA 01810. Phone: (978) 470-2900.

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