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Patent Searching and Data


Title:
マルチフェーズDC-DCコンバータ及びマルチフェーズDC-DCコンバータの制御回路
Document Type and Number:
Japanese Patent JP4347231
Kind Code:
B2
Abstract:
A self-excited multi-phase DC-DC converter having satisfactory responsiveness when its load suddenly changes. A control unit of the converter compares output currents of first and second converter units. Based on the comparison result, the control unit generates control signals to operate a converter unit through which a smaller output current flows. For example, when an output voltage of the converter decreases due to a sudden change in the load while the first converter unit is operating to supply current, the second converter unit through which a smaller output current flows is operated to increase the output voltage.

Inventors:
Morihito Hasegawa
Hidekiyo Ozawa
Application Number:
JP2005020141A
Publication Date:
October 21, 2009
Filing Date:
January 27, 2005
Export Citation:
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Assignee:
Fujitsu Microelectronics Limited
International Classes:
H02M3/155
Domestic Patent References:
JP63137534U
JP11127573A
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda