The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2002
Filed:
Nov. 16, 2000
Applicant:
Inventor:
Nai-Chi Lee, Cortlandt Manor, NY (US);
Assignee:
Philips Electronics North America Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 ; G05F 1/613 ; G05F 1/656 ;
U.S. Cl.
CPC ...
H02M 3/335 ; G05F 1/613 ; G05F 1/656 ;
Abstract
A method for controlling a switching converter includes receiving a digitized waveform of a continuous switch parameter; analyzing the digitized waveform to detect a parameter local minimum; and opening the switch at a parameter local minimum. An apparatus implements the method preferably using a microcontroller and at least one waveform digitizer to determine instantaneous power dissipation. The microcontroller selects an optimum local minimum of the switching waveform to achieve optimum power dissipation.