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. 29, 2025
Filed:
Oct. 24, 2022
Applicant:
Littelfuse, Inc., Chicago, IL (US);
Inventors:
Michael J. Gambuzza, Boston, MA (US);
Cesar Martinez, San Sebastian, ES;
Martin Schulz, Erwitte, DE;
Assignee:
Littelfuse, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 53/62 (2019.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01);
U.S. Cl.
CPC ...
B60L 53/62 (2019.02); H02J 7/0047 (2013.01); H02J 7/0063 (2013.01); H02J 7/00711 (2020.01); H02J 7/007182 (2020.01); H02J 7/345 (2013.01); B60L 2240/547 (2013.01);
Abstract
An adaptive pre-charge control circuit includes include a high-voltage switch and a control circuit. The high-voltage switch controls the flow of current between an electric battery and a DC link capacitor, the electric battery to supply power to an electric vehicle. The DC link capacitor is made up of a sum of individual input capacitors of multiple subunits within an electric vehicle. The control circuit sends a PWM signal to the high-voltage switch based on a difference between an electric battery voltage and a DC link capacitor voltage.