Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Xiaoru Xu0
Date of Patent
November 10, 2009
0Patent Application Number
119371040
Date Filed
November 8, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention relates to a method and an apparatus for controlling average current by pulse modulating an output current. The apparatus includes a constant-on-time switching regulator. During the pulse modulation on-time, an output voltage is regulated at a level corresponding to a defined value of a corresponding output current. A control signal is provided to indicate an adjustment to the output voltage that enables regulation of the output current to the defined value. During the pulse modulation off-time, the output voltage is maintained at the level that substantially corresponds to the defined value of the output current during the pulse-modulation on-time.
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