Gresham Announces 600W Compact PCI Power Supply

Gresham Power Electronics announced an addition to its range of compact PCI power supplies – the cPCI-6U-600, providing 600W of output power. Gresham states that it is responding to growing market demands for ever increasing power from the 6U cPCI footprint and believes their cPCI-6U-600 now leads the market in output power allowing users to develop higher density systems in the cPCI format.

Gresham states that its Compact Peripheral Component Interface (compact PCI, or cPCI) series represent the industry’s leading cPCI ac-dc power supplies, delivering up to 600W of continuous power. The full range of cPCI products incorporate the standard Positronic 47-pin connector, are fully compliant with the PICMG® 2.11 power interface specification and offer hot-swap, N+1 redundant connection and active load current share.

These cPCI power supplies incorporate active power factor correction, an 85–264Vac universal ac input voltage or dc input covering a range from 18–72Vdc, making them well suited for use in almost any application. Standard output voltages are 5V/65A +3.3V/80A +12V/12A -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 functionalities.

Gresham states that very high efficiency and power density result from the use of advanced component and circuit technologies, such as synchronous rectification, low profile transformers and SMT components. The design uses two converters in parallel, one for the +3.3V and the other for the +5V. This design provides the flexibility for determining individual load requirements for each output independently enabling full load currents to be drawn.

Jake Moir, Managing Director of Gresham Power Electronics, commented, "Our cPCI series provides design engineers with the flexibility they need to meet virtually any design requirements. We are finding new designs in communications, broadcast and advanced multi-media applications require increasing amounts of power which until now has meant using multiple power supplies connected in parallel. By delivering 600W in the standard cPCI package users can free-up more rack space for revenue earning electronics."

The Gresham cPCI-6U-600 family are all RoHS compliant, feature ruggedized construction as standard and advanced status and control functions including remote inhibit, output fail alarm, over temperature warning, output remote sense, single wire current share and front panel LEDs indicate outputs OK and any fault condition.

Full international safety agency approvals are held including UL/cUL60950, EN60950, CE Mark (LVD) and EN55022 Level B. Operating temperature range is -5 to +55°C with de-rating at 2.5 up to +71°C, cooling requirements are 400LFM of airflow and MTBF is calculated as >400,000 Hours per Belcore 332 issue 6.