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:
Mar. 08, 2016

Filed:

Aug. 05, 2013
Applicants:

Dong-hun Heo, Seoul, KR;

Sang-hyun Cho, Asan-si, KR;

Hyung-jong Ko, Seongnam-si, KR;

Inventors:

Dong-Hun Heo, Seoul, KR;

Sang-Hyun Cho, Asan-si, KR;

Hyung-Jong Ko, Seongnam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/32 (2006.01); H02J 7/00 (2006.01); G06F 1/26 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0068 (2013.01); G06F 1/26 (2013.01); H02J 7/0063 (2013.01); H02J 2007/0067 (2013.01);
Abstract

A method of controlling a load current is provided. By the method, a battery voltage control operation is begun when a battery voltage becomes lower than a first threshold value, whether a gradient of the battery voltage is a positive gradient or a negative gradient is determined at an interval of a reference or, alternatively, predetermined control time, the load current is controlled based on the gradient of the battery voltage at an interval of the reference or, alternatively, predetermined control time, and the battery voltage control operation is finished when the battery voltage becomes higher than a second threshold value.


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