Compact PCI power supply delivers up to 600W

Gresham Power's Compact Peripheral Component Interface (Compact PCI or cPCI) series represent 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 85-264V AC universal AC input voltage or DC input covering a range from 18-72V DC.

Standard output voltages are 5V/65A, +3.3V/80A, +12V/12A and -12V/1.5A, with custom variants are possible.

All models have a monitor and control (MandC) system based on an intelligent I2C bus.

This system provides 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 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.

'We are finding new designs in communications, broadcast and advanced multimedia applications that require increasing amounts of power, which until now has meant using multiple power supplies connected in parallel,' said Jake Moir, managing director of Gresham Power Electronics.

'By delivering 600W in the standard cPCI package users can free up more rack space for revenue-earning electronics,' he added.

The Gresham cPCI-6U-600 range is RoHS compliant and features a rugged construction as standard.

It also offers 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 that indicate outputs OK and any fault condition.

Full international safety agency approvals include UL/cUL60950, EN60950, CE Mark (LVD) and EN55022 Level B.

Operating temperature range is -5C to +55C with de-rating at 2.5 per cent/C up to +71C.

Cooling requirements are 400LFM of airflow and MTBF is calculated as greater than 400,000 hours per Belcore 332 issue 6.