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:
Mar. 16, 2021
Filed:
Jan. 26, 2018
Eaton Intelligent Power Limited, Dublin, IE;
Irving A. Gibbs, Mills River, NC (US);
Gabriel Braga, Belo Horizonte, BR;
Abstract
An apparatus includes an inverter configured to be connected to a load, a driver having an output coupled to control terminals of transistors of the inverter and a control input configured to receive control vectors and responsively apply control signals to control terminals of the inverter, a desaturation detector configured to detect desaturation of the transistors, and a controller coupled to the control input of the driver and configured to apply at least one test vector that causes the driver to turn on selected ones of the transistors for a duration sufficient for the desaturation detector to detect desaturation of at least one of the selected transistors and to enable or inhibit further operation of the inverter responsive to the desaturation detector. The load may be a motor and the controller may be configured to apply the at least one test vector responsive to a command to start the motor.