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:
Feb. 03, 2026
Filed:
Jun. 02, 2022
Siemens Aktiengesellschaft, Munich, DE;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
Various embodiments of the teachings herein include a power converter to convert between a first, AC voltage and a second voltage. An example includes: half-bridges connected in parallel, each comprising two semiconductor switches connected serially with outer terminals of the half-bridge forming terminals for the second voltage; a filter connected between midpoints of the half-bridges and terminals for the first voltage, comprising an inductor and a capacitor; a sensor for each half-bridge to measure current flowing between the midpoints of the half-bridges and the filter circuit; and a control circuit to operate the switches. The control circuit determines switching times using a modified reference voltage signal resulting in a softened bus clamp modulation. A controller creates the modified reference voltage signal using an unmodified reference voltage signal as a setpoint input and a sum of the current signals from the current sensors as measured input.