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:
Apr. 19, 2022
Filed:
Nov. 23, 2020
Texas Instruments Incorporated, Dallas, TX (US);
Michael Edwin Butenhoff, Minnesota City, MN (US);
Rakesh Raja, Allen, TX (US);
Nicholas James Oborny, Plano, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
Enhanced motor power control circuitry is presented herein. In one implementation, a circuit includes power transistor elements in a half-bridge arrangement configured to selectively switch current for a phase of a motor according to control signals applied to corresponding gate terminals. The circuit also includes control circuitry configured to produce the control signals to achieve target states among the power transistor elements. The control signals have ramp rates determined based at least on polarities of the current through the power transistor elements during inactive states.