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. 30, 2025
Filed:
Jun. 15, 2022
Alstom Holdings, Saint-Ouen-sur-Seine, FR;
Johann Galic, Surahammar, SE;
Magnus Bergman, Västerås, SE;
Torbjörn Trostén, Västerås, SE;
Mikael H. Johansson, Hallstahammar, SE;
ALSTOM Holdings, Saint-Ouen-sur-Seine, FR;
Abstract
A pulse width modulation system includes a plurality of module building blocks One control board is a master control board and others are slave control boards. Each slave control board determines a fictive master board timer based upon timer information received via a communication bus, and synchronizes the timer rate of a slave board timer to a timer rate of the master control board, or of an external timer rate. The timer information includes interlacing angle information defining an interlacing point for each of the control boards receiving the timer information. The interlacing angles are determined in relation to each other such that variation of a predetermined operation parameter, related to loads connected to pulse width modulated phase outputs of function modules, is minimized. At least two control boards, for which the interlacing angles are determined, are arranged to control function modules at different module building blocks.