Title :
An improved topology of inductor-switching DC-DC converter
Author :
Senanayake, Thilak ; Ninomiya, Tamotsu
Author_Institution :
Dept. of Electr. & Electron. Syst. Eng., Kyushu Univ., Fukuoka, Japan
fDate :
6/1/2005 12:00:00 AM
Abstract :
An improved version of an inductor-switching fast-response dc-dc converter is presented that will provide the requirements and features of the new generation of microprocessor and digital systems. Lower output voltage, higher output current, and smaller output voltage ripple requirements have greatly increased the difficulty of the power supply design. To further increase the problem, power-saving "stop-clock" modes of the microprocessor has demanded faster and more stable transient response from the dc-dc converter. A novel method of inductor switching is applied to a dc-dc converter, and it provides the prominent features of current amplification and absorption during the heavy burden of load transients. The design and simulation of the concept is verified by experiment with a 12-V input and 3.3-V/30-A output converter.
Keywords :
DC-DC power convertors; power inductors; power supply circuits; switching convertors; transient response; voltage control; 12 V; 3.3 V; 30 A; DC-DC converter; analog circuit; buck topology; current amplification; digital systems; inductor-switching; load transients; microprocessor; power supply design; power-saving stop-clock modes; transient response; voltage control; Absorption; DC-DC power converters; Digital systems; Inductors; Microprocessors; Power supplies; Switching converters; Topology; Transient response; Voltage; Analog circuit; dc–dc power conversion; inductor switching; voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2005.847572
