Title :
Power saving solutions in DC/DC converter for data and telecommunication power system
Author :
Miftakhutdinov, Rais
Author_Institution :
Texas Instrum. Inc., Cary, NC, USA
Abstract :
The paper reviews new power saving and efficiency regulations applied to server and telecom power supplies. It discusses aspects of system architectures with AC and DC uninterruptible bus on facility level, and then focuses on zero-voltage switching (ZVS), phase-shifted full-bridge DC/DC converter as a good candidate in such applications. The paper describes a new control strategy demonstrating power saving and high efficiency over the whole output power range. A new model for switching losses of super junction MOSFETs is provided that can be used for design optimization of the converter. Advantages of suggested control strategy are verified by test results of 660-W DC/DC converter for server power supply with the efficiency up to 94.5%, and illustrated by captured waveforms at different operation modes.
Keywords :
DC-DC power convertors; MOSFET; energy conservation; energy management systems; telecommunication power supplies; zero voltage switching; AC uninterruptable bus; DC uninterruptable bus; ZVS; control strategy; phase-shifted full-bridge DC/DC converter; power 660 W; power saving solutions; super junction MOSFET; switching losses; telecommunication power system; zero voltage switching; DC-DC power converters; Design optimization; MOSFETs; Power generation; Power supplies; Power systems; Switching converters; Switching loss; Telecommunication control; Zero voltage switching; Communication system power supplies; DC-DC power conversion; energy management; optimal control; power conversion; power system control;
Conference_Titel :
Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4166-2
Electronic_ISBN :
978-1-4244-4167-9
DOI :
10.1109/PEDS.2009.5385883
