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:
Dec. 24, 2019
Filed:
Jun. 27, 2017
Nxp Usa, Inc., Austin, TX (US);
Thierry Sicard, Auzeville tolosane, FR;
NXP USA, INC., Austin, TX (US);
Abstract
A method and apparatus are provided for controlling a drive terminal of a power transistor by applying a turn-off voltage to the drive terminal at a turn-off time, measuring a gate current at the drive terminal to detect a predetermined gate current slope, determining a first time increment after the turn-off time when the predetermined gate current slope is detected, determining a second time increment which is proportional to the first time increment and which expires within a Miller plateau for the power transistor, and lowering the gate current at the drive terminal to a predetermined current level upon expiration of the second time increment in order to reduce overvoltages at the power transistor.