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. 20, 2004
Filed:
Nov. 21, 2002
Applicant:
Inventors:
Hyun-Jun Kim, Daejeon, KR;
Dae-Young Youn, Daejeon, KR;
Assignee:
Smart Power Solutions, Inc., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 ;
U.S. Cl.
CPC ...
H02J 7/00 ;
Abstract
An external battery pack apparatus is provided for supplying to a power-supply voltage to a portable appliance, including an adapter having a power-supply terminal and output voltage setting terminals for programming an output voltage; a cable connected to the adapter; and a main body including a battery, a charging controller for charging the battery, and an output controller for performing a DC-to-DC conversion on a voltage charged in the battery, outputting the DC-to-DC converted voltage to the adapter via the cable, detecting a programming status of the adapter, and changing an output voltage in response to the detected programming status.