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:
May. 20, 2014
Filed:
Jun. 19, 2008
Shigefumi Odaohhara, Yamato, JP;
Shigefumi Odaohhara, Yamato, JP;
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A battery charging system is disclosed. The battery charging system includes a battery charger, a switching circuit and a control circuit. The battery charger receives electric power from a DC power supply and charges a rechargeable battery based on a setting current. The switching circuit is capable of switching between a first charging mode and a second charging mode. In the first charging mode, the battery charger charges the rechargeable battery while the DC power supply is supplying electric power to the battery charger in a state where the DC power supply is able to supply electric power to a load. In the second charging mode, the DC power supply charges the rechargeable battery in a state where the DC power supply is able to supply electric power to the load. The control circuit controls the switching circuit based on a comparison result of the magnitude of a charging current (or a charging power) in the first charging mode and the magnitude of a charging current (or a charging power) in the second charging mode.