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:
Sep. 24, 2024
Filed:
Jun. 29, 2021
Siemens Aktiengesellschaft, Munich, DE;
Ze Wei Liu, Beijing, CN;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
Various embodiments include a switching control method for a three-level flying-capacitor converter. An example method includes sending constant HIGH drive signals to two middle power switches when an input voltage of the converter is lower than a predetermined proportion of a maximum input voltage value. The three-level flying-capacitor converter comprises an input capacitor, a first discharge resistor, a flying capacitor, four power switches, four diodes, an output inductor, and an output capacitor. The two middle power switches consist of the second power switch and the third power switch. The flying capacitor is connected in parallel with the two middle power switches. The HIGH drive signals cause the two middle power switches to be continuously switched on and thereby cause the flying capacitor to be short-circuited.