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. 16, 2003
Filed:
May. 30, 2001
David M. Jones, Tucson, AZ (US);
Heinz-Juergen Metzger, Pliezhausen, DE;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A current sense amplifier ( ) for measuring current flowing through a sense resistor ( ) coupled between first ( ) and second ( ) terminals, respectively, of the current sense amplifier, the current sense amplifier includes a first amplifier ( ) having a first input ( ) coupled by a first resistor ( ) to the first terminal ( ) and a second input ( ) coupled by a second resistor ( ) to the second terminal ( ) and a bias circuit ( ) coupled to the first input ( ) of the first amplifier for causing the bias current to flow through the first resistor ( A feedback transistor ( ) is coupled to the output ( ) of the first amplifier and the second input ( ) of the first amplifier to cause a feedback current to equalize the voltages on the first ( ) and second ( ) inputs of the first amplifier and supply the feedback current to an output terminal ( ) of the current sense amplifier ( ).