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. 28, 2015
Filed:
May. 16, 2012
Zuohang Zhu, Ottawa, CA;
Zuohang Zhu, Ottawa, CA;
Powerstick.com Inc., Ottawa, Ontario, CA;
Abstract
A portable device charger is disclosed, which is able to charge portable devices whether it is connected to an external power supply or not. The charger connects to household AC power as well as USB DC power, and further has a photovoltaic cell. It manages the input power from these three sources to charge a portable device and/or recharge the charger's battery, by supplementing the input power with battery power if the device demands more power than the input source, and charging the battery with remaining power if the device demands less power than is provided by the input source. The charger turns off the AC/DC converter and draws no power from the AC source if the battery is full and there is no attached device.