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. 30, 2017
Filed:
May. 31, 2016
Applicant:
Google Inc., Mountian View, CA (US);
Inventors:
Sangsun Kim, San Jose, CA (US);
Pascal Kam, Union City, CA (US);
Assignee:
Google Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 9/00 (2006.01);
U.S. Cl.
CPC ...
H02J 9/00 (2013.01); H02J 7/0021 (2013.01); H02J 7/0052 (2013.01); H02J 7/0063 (2013.01); H02J 7/0081 (2013.01); H02J 2007/0059 (2013.01);
Abstract
Methods and systems supply uninterrupted power to a load using a backup battery module. A driver circuit connects the load and the backup battery module such that the operational range of the load voltage is narrower than the operational range of the battery voltage. Different charging and discharging paths of the driver circuit may be used to limit the DC bus voltage to values lower than the battery voltage. The proposed systems and methods can increase power efficiency and decrease the cost of power supply and conversion operations.