Title :
Improvement of transient response in high-current output DC-DC converters
Author :
Hirokawa, Masahiko ; Miyazaki, Hiroshi ; Matsuura, Ken ; Ninomiya, Tamotsu
Author_Institution :
Power Syst. Div., TDK R&D Corp., Westford, MA, USA
Abstract :
Concerning a low-voltage and high-current output DC-DC converter such as a voltage regulator module used for a 64-bit microprocessor, synchronization with paralleled current-doubler rectifiers has been considered for improvement in dynamic response. As a result, the output voltage deviation of 50 mV at a slew rate of 300 A//spl mu/s has been performed on a prototype with an output of 1.3 V/130 A.
Keywords :
DC-DC power convertors; bridge circuits; dynamic response; microprocessor chips; rectifiers; synchronisation; transient response; voltage regulators; 1.3 V; 50 mV; dynamic response; half-bridge; high-current output DC-DC converter; microprocessor; paralleled current-doubter rectifier; slew rate; synchronization; transient response; voltage regulator module; Capacitors; DC-DC power converters; Inductors; Microprocessors; Power system dynamics; Power system transients; Rectifiers; Regulators; Transient response; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179291
