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:
Sep. 28, 2004
Filed:
Apr. 04, 2003
Gregory Emil Swize, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A transconductance circuit ( ) and method for protecting an H-bridge power circuit ( ) that provides power to a load that includes an inductive component ( ) connected between one side of the inductive component ( ) and a gate ( ) of a low side transistor ( ) of the H-bridge ( ). The transconductance circuit ( ) operates to pull current from the inductive component ( ) to ground ( ) when the inductive load ( ) sources current to a body diode of the high side transistor ( ). The transconductance circuit ( ) creates a regulated voltage to the gate ( ) of the low side transistor ( ) to cause the low side transistor ( ) to conduct the current away in a regulated manner from the inductor ( ) and the high side transistor ( ) to ground ( ).