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:
Aug. 22, 2017
Filed:
Apr. 29, 2015
Texas Instruments Incorporated, Dallas, TX (US);
Gangqiang Zhang, Plano, TX (US);
Texas Intruments Incorporated, Dallas, TX (US);
Abstract
An overcurrent detector that includes a sense transistor connected to a sense resistor, a second transistor matched to the sense transistor and connected in parallel to a second resistor, and a voltage comparator coupled to the sense transistor and second resistor. The sense transistor is configured to connect in a same gate and source connection with a driver output transistor. The second transistor and second resistor are configured to receive a current reference and generate a voltage reference. The voltage comparator is configured to compare the voltage reference with a voltage drop across the sense resistor.