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.

Date of Patent:
Jun. 02, 2026

Filed:

Mar. 30, 2023
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Ravikumar Pattipaka, Bangalore, IN;

Raja Sekhar, Bangalore, IN;

Sandeep Oswal, Bangalore, IN;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 1/32 (2006.01); H03F 3/24 (2006.01); H03G 3/30 (2006.01); H04B 1/04 (2006.01); H04B 1/48 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45475 (2013.01); H03F 1/3211 (2013.01); H03F 3/245 (2013.01); H03G 3/3042 (2013.01); H04B 1/04 (2013.01); H04B 2001/0408 (2013.01); H04B 2001/485 (2013.01);
Abstract

An ultrasonic transmitter including a linear amplifier, an output stage, a switch, and a current compensation circuit. The linear amplifier includes first and second amplifier stages. The output stage has an input coupled to an output of the linear amplifier, and presents the transmitter output. The switch is coupled to the output of the linear amplifier. The current compensation circuit has an output coupled at the output of the first amplifier stage. Select circuitry is configured to couple the switch to a bias terminal when the switch is closed, and to couple one or more nodes of the switch to the control terminal of the current compensation circuit when the switch is open. The current compensation circuit generates a compensation current responsive to a sensed non-linear current conducted through the switch when open.


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