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.

Date of Patent:
Dec. 26, 2017

Filed:

Feb. 22, 2012
Applicants:

Jens Biebach, Tutzing, DE;

Friedrich Boebel, Eurasburg, DE;

Inventors:

Jens Biebach, Tutzing, DE;

Friedrich Boebel, Eurasburg, DE;

Assignee:

Torqeedo GmbH, Starnberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/44 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H02J 7/0024 (2013.01); H01M 10/441 (2013.01); H01M 10/0525 (2013.01);
Abstract

A circuit and a method for connecting a first electrical storage device and a second electrical storage device in parallel is disclosed. The first electrical storage device and the second electrical storage device have in each case a no-load voltage U, Uand an impedance Rand R, respectively, and have connecting terminals for charge withdrawal or charge supply. The no-load voltage Uof the first storage device is greater than the no-load voltage Uof the second storage device. In the case of a charge withdrawal, a charge is initially only withdrawn from the first storage device and the second storage device is connected in parallel with the first storage device when the difference of the voltage dropped across the connecting terminals of the first storage device and the no-load voltage Uof the second storage device is less than a predetermined differential add-on voltage.


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