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:
Nov. 07, 2006
Filed:
Dec. 01, 2003
Rex M. Teggatz, Sachse, TX (US);
Wayne Tien-feng Chen, Plano, TX (US);
Joseph Devore, Richardson, TX (US);
Rex M. Teggatz, Sachse, TX (US);
Wayne Tien-Feng Chen, Plano, TX (US);
Joseph Devore, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
System and method for controlling current across a load. A preferred embodiment comprises a current varying circuit (such as current varying circuit) that can create a sequence of voltage drops in a driver circuit (such as the driver circuit) coupled to an inductive load (such as the inductive load). By initially producing a large voltage drop and then stepping the voltage drop down gradually, the current in the inductive load can be rapidly removed without producing a current undershoot, which, in certain applications, can result in unwanted noise and vibration.