Title :
Feedback for Low Frequency Ripple Attenuation in DC Transformer
Author :
Pratt, Annabelle ; Dou, Sen
Author_Institution :
Corp. Technol. Group, Hillsboro
Abstract :
In order to reduce power consumption of servers, efficient power conversion is required. DC Transformers (DCXs) have long been used in DC distribution, but have not been used in AC input power supplies due to the propagation of line frequency ripple. The use of a DCX with line frequency ripple attenuation has been proposed previously, where attenuation was achieved through feedforward of the input voltage. This paper proposes the use of output voltage feedback for a DC Transformer (DCX) with low frequency ripple attenuation.
Keywords :
DC transformers; feedback; power convertors; AC input power supplies; DC distribution; DC transformer; low frequency ripple attenuation; output voltage feedback; power conversion; Attenuation; DC-DC power converters; Energy consumption; Frequency conversion; Output feedback; Power conversion; Power supplies; State estimation; Voltage; Web server;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342405
