OREANDA-NEWS. April 05, 2012. Fujitsu Laboratories Limited today announced the development of a power supply unit for servers that features a 2.3 kW power output and achieves a world-leading conversion efficiency rate of 98.4%.

As servers have grown more powerful, their energy requirements have increased as well, creating a need for power supply units with more capacity to supply electricity inside the server. Power supply units take externally supplied AC power (200 V AC) and convert it to DC power (12 V DC) that has been stabilized to meet the server's operating requirements. This conversion process is always accompanied by some loss, while minimizing the conversion loss and increasing power supply conversion efficiency is an important factor in reducing a server's overall energy requirements. However, greater power supply unit capacity typically results in greater internal loss, making a high-efficiency power supply unit difficult to produce.

Fujitsu Laboratories has developed digital control technology and new circuitry aimed at reducing power supply loss in order to achieve a world-leading 94.8% conversion efficiency rate with the 2.3kW high-capacity power supply unit., This reduces overall energy requirements for the server and contributes to energy savings for datacenters.