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. 23, 2016
Filed:
Nov. 13, 2012
Panasonic Corporation, Osaka, JP;
Abstract
A battery charger () non-concurrently performing a first operation to charge a main battery (MBA) and a sub-battery (SBA) by using an external power supply (AC), and a second operation to charge the sub-battery by using the main battery, including: a power supply circuit (); a transformer (); a secondary-side circuit () rectifying a voltage induced in a winding () and supplying the voltage to the main battery in a first time period for the first operation, and converting a DC voltage from the main battery into an AC voltage and supplying the AC voltage to the winding in a second time period for the second operation; a conduction angle adjustment circuit (); and a control circuit (), the secondary-side circuit being a full-bridge circuit including parallel-connected arms each including parallel-connected bodies connected in series, the parallel-connected bodies each including a switching unit and a rectifying unit connected in parallel.