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:
Nov. 28, 2017
Filed:
Nov. 14, 2016
Industrial Technology Research Institute, Hsinchu, TW;
Chao-Jen Huang, Taichung, TW;
Industrial Technology Research Institute, Chutung, Hsinchu, TW;
Abstract
A power point tracking method and a power point tracking apparatus are provided. A power point tracking method, comprising obtaining, by a controller, a first operating point and a first characteristic curve according to an open-circuit voltage or an input voltage of an energy harvester; calculating, by the controller, a first duty cycle signal according to the first operating point, a converter characteristic, an output voltage and a desired operating point; operating, by a converter, after receiving the first duty cycle signal; obtaining, by the controller, a second characteristic curve by calculating a second operating point according to the input voltage, the output voltage and the first duty cycle signal; and calculating, by the controller, a second duty cycle signal for transferring to the converter for a tracking control according to the second characteristic curve, the converter characteristic, the output voltage and the desired operating point.