Forming the latest additions to the Artesyn family of high-power-density IBCs (intermediate bus converters), the IBC60 1/4 brick and IBC32 1/8 brick units are designed to operate from a 38 to 55VDC supply, have a fixed 5:1 conversion ratio and generate an isolated, unregulated DC output. When fed with a 48VDC supply, the converters generate a 9.6VDC output. The IBC60 can deliver up to 60A with a typical load-regulation figure of 2.5% for all load conditions. The IBC32 has a 32A output capability, and a typical load-regulation figure of 2.3%. Both units use an advanced full-bridge conversion topology, with a primary-side microprocessor to simplify the converter's house-keeping needs. The topology also employs a driven synchronous system, in which all power switches are directly controlled by the PWM controller. Designed for through-hole board mounting, the converters measure 58x23 and 58x37mm, respectively, with an installed height of just 12mm. They are designed for operation over a wide ambient-temperature range of -40 to +85°C without a heatsink.
