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:
Dec. 08, 2015
Filed:
Jun. 28, 2011
Xavier Maynard, Saint Genis Laval, FR;
Andre Milewski, Jarnioux, FR;
Gianni Sartorelli, Oppens, CH;
Mikael Setterberg, La Jolla, CA (US);
Xavier Maynard, Saint Genis Laval, FR;
Andre Milewski, Jarnioux, FR;
Gianni Sartorelli, Oppens, CH;
Mikael Setterberg, La Jolla, CA (US);
Maxwell Technologies, Inc., San Diego, CA (US);
Abstract
A device () monitors and/or balances an ultracapacitor () and/or a module () comprising a plurality of ultracapacitors () connected in series, the module () being connectable in series or in parallel with other modules (). The device comprises an electronic board () comprising digital control and/or command means, such as a microcontroller (), executing a program for monitoring and balancing the ultracapacitor () and/or the module (). The relative capacitances of the capacitors are measured, and this information is employed to determine when to carry out a controlled discharge of particular capacitors. Temperature information is also employed to determine when to carry out a controlled discharge of particular capacitors. In this way the lifetime of any particular capacitor is, desirably, extended to be no shorter than the lifetime of other longer-lived capacitors in the module.