2Dr.Ray Ridley.IBM‘s Next Generation:Server Look to Bus Converters[].Switching Power Magazine.2005
3Ulf Carlsson等.Powering the Internet-Broadband Equip- ment In All Facilities-the Need For a 300V_ (DC)Powering and Universal Current Option. INTELEC 2003 .
4.Environmental Engi- neering(EE);Power supply interface at the input to telecom- munications equipment;Part3:Operated by rectified current source,alternating current source or direct current source up to 400V[].ETSI EN -V.2003
5Didier Marquet,MarcAu- bree.France Telecom Energy consumption, HVDC,coohng improvement[].Datacenter Code of Conduct meeting in IEA.2007
