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.

Date of Patent:
Jun. 23, 2015

Filed:

Aug. 13, 2013
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Chao-Jen Huang, Taichung, TW;

Fang-Chih Chu, Taichung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/158 (2006.01); G05F 1/67 (2006.01); H02J 3/38 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); G05F 1/67 (2013.01); H02J 3/385 (2013.01); H02M 2001/0025 (2013.01);
Abstract

A maximum power point tracking (MPPT) apparatus and a MPPT method are disclosed. A converter uses an inductor therein to perform power conversion operations according to a gating signal so as to convert an input electrical energy into an output electrical energy to a load. A controller monitors the voltage difference of the inductor and the element temperature, performs a lookup table operation or calculates the element characteristic according to the element temperature, and further uses the element characteristic and the voltage difference of the inductor for calculating a characteristic value and correspondingly adjusts the gating signal according to the characteristic value so as to track the power of the input electrical energy.


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