Front-end supplies bring 48V for distributed power

C and D Technologies has added a 48V family to its class leading D1U-W AC/DC front-end power supply product line. The range, which already has a 12V series, is designed to deliver high efficiency bulk power to servers, workstations, and storage systems that use distributed power architectures. The D1U series consists of 1200, 1600 and 2000W (220V AC) output power models that are 1U high, RoHS compliant, hot pluggable, and support redundant applications.

The new range uses a combination of proven topology and high density board mount power packaging techniques to maximise space utilisation and deliver high efficiency, power density and enhanced reliability.

The series supports a 12 or 48V main output with 3.3, 5 or 12V standby voltage options.

Built-in cooling fans simplify integration into customer applications and give the D1U-W series excellent thermal performance in a wide range of operating conditions.

The standard specification includes active current sharing on the main output, an I2C bus with status indicators, plus over-voltage and over-temperature protection.

Overall dimensions of the D1U-W series are 304.8 x 120.7 x 40.6mm.

Operating temperature range is 0 to 50C.

An optional 1U high 19in-wide power shelf allows three D1U-W units to be packaged together delivering up to 4.8kW of power for 1200 and 1600W variants, and 6.0kW for 2000W models.

Power densities are 13.2, 17.5 and 21.9W/in3, respectively.