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:
Jan. 12, 2016
Filed:
Jan. 28, 2011
Ling Yao, Beijing, CN;
BO Song, Beijing, CN;
Xiaoren Cheng, Beijing, CN;
Weizhi Lin, Beijing, CN;
Shuangcheng Zhao, Beijing, CN;
Ling Yao, Beijing, CN;
Bo Song, Beijing, CN;
Xiaoren Cheng, Beijing, CN;
Weizhi Lin, Beijing, CN;
Shuangcheng Zhao, Beijing, CN;
BEIJING LENOVO SOFTWARE LTD., Haidian District, Beijing, CN;
LENOVO (BEIJING) CO., LTD., Haidian District, Beijing, CN;
Abstract
A power adapter for a portable computer includes a pulse width modulation unit and an output shaping unit and further includes a first judgment module that judges whether the portable computer is in a first state according to state judging parameters, and compares an output voltage with a first preset voltage and a second preset voltage when judging that the portable computer is in the first state, and acquires a judging result, wherein the first preset voltage is greater than or equal to the second preset voltage. The power adapter can increase efficiency.