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. 08, 2023
Filed:
May. 03, 2019
Applicant:
Würth Elektronik Eisos Gmbh & Co. KG, Waldenburg, DE;
Inventors:
Aleksandar Prodic, Toronto, CA;
Michael Halamicek, Toronto, CA;
Tom Moiannou, Markham, CA;
Nenad Vukadinovic, Toronto, CA;
Alexander Gerfer, Odenthal, DE;
Mahmoud Shousha, Eching, DE;
Martin Haug, Munich, DE;
Assignee:
Würth Elektronik eiSos GmbH & Co. KG, Waldenburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 3/158 (2006.01); H02M 3/06 (2006.01); H02M 3/335 (2006.01); H02M 3/07 (2006.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01); H02M 3/06 (2013.01); H02M 3/158 (2013.01); H02M 3/33571 (2021.05); H02M 3/01 (2021.05); H02M 3/07 (2013.01);
Abstract
The voltage stress is limited across switches in multi-level flying capacitor step-down dc-dc converters during a start-up sequence by a circuit. In one embodiment, the circuit includes a diode that is adapted to prevent reverse current flow during steady state operation, a pull-down switch and a commutation cell, which includes a start-up capacitor and a flying capacitor.