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:
Aug. 09, 2011
Filed:
Nov. 23, 2009
Doru Cioaca, Cupertino, CA (US);
Constantin Bucur, Santa Clara, CA (US);
Alexandru Hartular, San Jose, CA (US);
Marian Niculae, San Jose, CA (US);
Doru Cioaca, Cupertino, CA (US);
Constantin Bucur, Santa Clara, CA (US);
Alexandru Hartular, San Jose, CA (US);
Marian Niculae, San Jose, CA (US);
02Micro International Limited, Georgetown, Grand Cayman, KY;
Abstract
A supply topology comprising an AC to DC or DC to DC adapter and an electronic device with an active system, a battery, and an adapter controller implements closed-loop control of adapter output voltage to limit power consumption by the electronic device to a value related to maximum adapter power. The adapter adjusts its output voltage in response to the magnitude of an error signal representing an amount by which instantaneous power consumption exceeds adapter maximum power. An adapter controller in the electronic device sets a limit for allocating current to battery charging from the signal representing maximum adapter power, with battery charging current approaching zero as instantaneous power consumption approaches maximum adapter power.