Gresham increase power delivery with 600W Compact PCI Power Supply

Gresham Power’s Compact Peripheral Component Interface (compact PCI, or cPCI) series represent the industry's leading cPCI AC/DC power supplies, delivering up to 600 W 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 ideal 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



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. Gresham Power’s unique 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, comments; “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 ruggedised 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 -5C to +55°C with de-rating at 2.5%/°C up to +71°C, cooling requirements are 400LFM of airflow and MTBF is calculated as >400,000 Hours per Belcore 332 issue 6.