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:
May. 09, 2023

Filed:

Aug. 22, 2022
Applicant:

Freewire Technologies, Inc., Newark, CA (US);

Inventors:

Aaron Rogers, Newark, CA (US);

Nathan Biesterfeld, Newark, CA (US);

Nikola Milivojevic, Newark, CA (US);

Assignee:

FREEWIRE TECHNOLOGIES, INC., Newark, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); B60L 58/18 (2019.01); H02J 7/34 (2006.01); H02M 1/00 (2006.01); H02M 3/158 (2006.01); B60L 50/60 (2019.01);
U.S. Cl.
CPC ...
B60L 58/18 (2019.02); B60L 50/60 (2019.02); H02J 7/00714 (2020.01); H02J 7/342 (2020.01); H02M 1/0009 (2021.05); H02M 3/1582 (2013.01); B60L 2210/10 (2013.01); B60L 2210/12 (2013.01); B60L 2210/14 (2013.01); H02J 2207/20 (2020.01);
Abstract

Controlling a charging current while transferring energy from a source battery to a target battery in an electric vehicle (EV) includes operating, by control circuitry, a buck converter at a fixed switching frequency to transfer power from the source battery to the target battery, in a first operational mode; in response to detecting a first trigger event, transitioning from the first operational mode to a second operational mode to operate the buck converter at a variable switching frequency; and in response to detecting a second trigger event, transitioning to a third operational mode to activate a boost converter coupled to the source battery and the target battery.


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