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:
Dec. 06, 2011
Filed:
Jun. 28, 2010
Rodney T. Burt, Tucson, AZ (US);
Joy Y. Zhang, Tucson, AZ (US);
Rodney T. Burt, Tucson, AZ (US);
Joy Y. Zhang, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A chopper-stabilized circuit () includes pre-chopping circuitry () for chopping an input signal (Vin) at a first frequency to generate a first signal. Input chopping circuitry () chops the first signal at a second frequency substantially greater than the first frequency to produce a second signal. The first frequency is a sub-harmonic of the second frequency. Post-chopping circuitry () chops the second chopped signal at the first frequency to produce a third signal that is applied to an input of a signal conditioning circuit (). The output chopping circuitry () chops an output of the signal conditioning circuit at the second frequency to generate a fourth signal. The fourth signal is filtered.