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. 10, 2017
Filed:
Nov. 17, 2014
Texas Instruments Deutschland Gmbh, Freising, DE;
Francesco Silvio Santoro, Munich, DE;
Ralf Peter Brederlow, Poing, DE;
Niel Gibson, Freising, DE;
Rüdiger Kuhn, Freising, DE;
TEXAS INSTRUMENTS DEUTSCHLAND GMBH, Freising, DE;
Abstract
A power conversion system includes a power transfer estimator that is operable to provide a determination of the cumulative amount of power transferred through the power supply, without additional sensing elements and at extremely low power levels, and to provide such determinations periodically over potentially long periods of time commensurate with the lifetime of a limited power source such as a battery. In a power conversion system operating in a discontinuous conduction mode (DCM), the power transfer estimator determines the charge transferred during each switching cycle, and the total number of switching cycles, to calculate the cumulative amount of power transferred. The power transfer estimator is optionally operable to calculate a value for the inductance to be used in the determination of the cumulative amount of power transferred through the power supply.