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. 28, 2017
Filed:
Jan. 05, 2012
Daniel Rozand, Romans sur Isere, FR;
Patrick Chambon, Saint Martin d'Heres, FR;
Stefano DE Cesaris, Grenoble, FR;
Daniel Rozand, Romans sur Isere, FR;
Patrick Chambon, Saint Martin d'Heres, FR;
Stefano De Cesaris, Grenoble, FR;
SCHNEIDER ELECTRIC IT CORPORATION, West Kingston, RI (US);
Abstract
The present disclosure relates to a controller, a circuit and method for controlling a power converter using pulse width modulation (PWM). At least one logic block () of the controller is configured to remove a command () which is configured to control the other power semiconductor switch () in a half-bridge () so that the other power semiconductor switch () remains in a non-conductive state while an antiparallel diode () allows an electric current () to pass in one direction, called the diode's forward direction, while blocking current in the opposite direction. In case the diode () is conducting instead of the other power semiconductor switch during the duration of the state of the command, the switching command () for the latter is omitted. The controller is further configured to modify the dead time interval (Tdead) between switching from the power semiconductor switch () to another power semiconductor switch () or vice versa in order to avoid a discontinuity in the transfer function ().