6U compact PCI power supply boosted to 650W output

Mon, 10/03/2011 - 4:20am
ECN Europe

Gresham Power Electronics has increased the output power of its 6U compact PCI power supply to an impressive 650W.

Picture: Gresham Power Electronics

According to the company, since applications for 6U cPCI footprint systems are growing rapidly, they developed the 650W cPCI-6U-650 to respond to growing market demands for ever increasing power without sacrificing rack space.

The cPCI-6U-650 is compliant with the PICMG 2.11 power interface specification, incorporates the standard Positronic 47-pin connector and offer hot-swap, N+1 redundant connection and active load current share.

The power supply features a 90–264VAC universal AC input voltage with active power factor correction, or a DC input covering a range from 36 –72VDC. Standard output voltages are 5V/80A +3.3V/70A +12V/7A -12V/1.5A and custom variants are possible. All models have a monitor and control (M&C) system based on an intelligent I2C bus. This system provides comprehensive remote status monitoring and control.

Full use of advanced component and circuit technologies, including synchronous rectification, low profile transformers and SMT components ensure very high efficiency and power density. The design uses two output converters in parallel, one for the +3.3V and the other for the +5V. Gresham says this technique ensures maximum flexibility when determining load requirements for each output enabling full load currents to be drawn.

The cPCI-6U-650 is RoHS compliant, has full international safety agency approvals including UL/cUL60950,  CE Mark (LVD) and EN55022 Level A. Operating temperature range is -5C to +55°C with de-rating at 2.5%/°C up to +70°C, cooling requirements are 400LFM of airflow and MTBF is calculated as >400,000 Hours per Belcore 332 issue 6.




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