Title :
A current compensation circuit for VRM in the sudden change of the load
Author :
Ueno, Masao ; Ito, Koichi ; Ishizuka, Yoichi ; Matsuo, Hirofinmi
Author_Institution :
Nagasaki Univ.
Abstract :
A new current-compensation circuit system for VRM is proposed. The proposed circuit consists of MOSFETs, resistors and capacitors without any discrete magnetic devices. It works during only term of transient response and total power loss is very small. From the simulation result, it is revealed that the output voltage of the VRM has fitted in 5 % of 1.5 V at the load change between 1 A and 50 A. And from the observation result, it is revealed that the descent width of output voltage of VRM has improved about 100 mV of 1.5 V at the load change from 1 A to 10 A
Keywords :
MOSFET circuits; capacitors; resistors; transient response; voltage regulators; 1 to 10 A; MOSFET; capacitors; current compensation circuit; discrete magnetic devices; power loss; resistors; transient response; Capacitors; Circuit simulation; Energy management; MOSFETs; Magnetic circuits; Magnetic devices; Pulse width modulation converters; Resistors; Transient response; Voltage; Fast Load Transient Response; Point of Load; Voltage Regulated Modulator;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219386
