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. 24, 2010
Filed:
Dec. 29, 2008
Steven B. Witmer, Sinking Springs, PA (US);
Lunal Khuon, West Chester, PA (US);
Brian K. Kullberg, Lake Oswego, OR (US);
Steven B. Witmer, Sinking Springs, PA (US);
Lunal Khuon, West Chester, PA (US);
Brian K. Kullberg, Lake Oswego, OR (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Digital amplifying circuitry delays a digital data signal (IN) to produce an output signal (Vout). The delayed digital data signal is converted to an analog signal (Vin) for amplifying by an amplifier (R). Signal amplitude information (S_R[n]) contained in the incoming digital data signal is detected during the delaying. The signal amplitude information is converted to a first control signal (S_Io_NEG[n]) in response to which an adjustable maximum available supply current of the amplifier is produced of least sufficient magnitude to avoid distortion during the amplifying to produce the output signal. The signal amplitude information also is converted to a second control signal (S_AMPLITUDE[n]) in response to which a supply voltage (V) of the amplifier is controlled.