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:
Jun. 04, 2002
Filed:
Apr. 16, 2001
Nai-Chi Lee, Briarcliff Manor, NY (US);
Koninklijke Philips Electronics N.V., Eidenhoven, NL;
Abstract
A method for reducing power losses in a semiconductor switching device in a switching power converter by continuously monitoring an instantaneous power dissipation signal in the switching device and creating an appropriate correction signal to optimize that parasitic power dissipation. A multitude of strobed current and voltage measurement signals associated with the switching device are obtained over a time period using a pair of analog-to-digital converters (ADCs). These measurement signals are used to calculate the multitude of instantaneous power signals, then to derive an average power dissipation signal for a complete cycle and create the correction signal based on a comparison with a reference signal in memory. The correction signal can be, derived in a computer via an algorithm or a look-up table, and would preferably provide a relative adjustment in the timings of the switching device.