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:
Jul. 01, 2014
Filed:
May. 10, 2012
Haruyasu Komano, Hitachi, JP;
Kazuo Kotani, Hitachi, JP;
Naofumi Chiwata, Mito, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A malfunction detecting device for a solar cell panel includes an AC source that is provided on one of positive and negative sides of a solar cell panel body and can apply AC voltage superimposed on DC voltage to the solar cell panel, a measuring means provided on another of the positive and negative sides of the solar cell panel body to measure voltage or current output from the solar cell panel, and a control unit including a malfunction determination portion that controls the AC source to control input voltage or input current to be input to the solar cell panel and determines malfunction in the solar cell panel by comparing the input voltage or the input current to output voltage or output current measured by the measuring means. The malfunction determination portion includes a panel body malfunction determination portion and a bypass diode malfunction determination portion.