Title:
N位相集積バックコンバータ
Document Type and Number:
Japanese Patent JP2005518775
Kind Code:
A
Abstract:
The present invention provides an n-phase integrated buck converter. The converter comprises a controller and a plurality of circuits each operably connected to the controller. The controller controls the plurality of circuits to respectively output a plurality of current signals each having an associated phase and generate an output voltage signal. By applying the n phase concept of the invention, the amount of current each phase (i.e., each of the plurality of circuits) has to deliver is reduced. This directly reduces the conduction losses in each phase. Because the current in each phase is lower, a smaller MOSFET in each of the plurality of circuits may be used. The smaller MOSFET is easier to switch. Therefore, the switching losses per phase are also reduced. Reducing these losses will enable the invention to achieve high efficiencies. Integration allows all of the components to become physically closer and capable of being switched faster. Faster switching frequencies allow for smaller and less passive components. Integration also minimizes the total cost of the converter.
Inventors:
Jeffery, Olsen
Ferdinand Y. Sluyus
Ferdinand Y. Sluyus
Application Number:
JP2003570457A
Publication Date:
June 23, 2005
Filing Date:
February 03, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H02M3/155; H02M3/158; (IPC1-7): H02M3/155
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Takeshi Sekine
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Takeshi Sekine