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:
Jun. 30, 2026
Filed:
Jul. 30, 2021
Texas Instruments Incorporated, Dallas, TX (US);
Adam Lee Shook, Carrollton, TX (US);
Michael Ryan Hanschke, Wylie, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
An envelope detector comprises a first differential transistor pair that receives first and second input signals, a second differential transistor pair that receives third and fourth input signals, a resistor, a current source, and a comparator. The first and second differential pairs each comprise two transistors having first current terminals coupled together and second current terminals coupled together. The resistor is coupled between the second current terminals of the first and second differential pairs. The current source has a first terminal coupled to the second terminal of the resistor and to second current terminals of the second differential pair and a second terminal configured to receive a negative supply voltage. The comparator has a negative input coupled to first current terminals of the first differential pair and a positive input coupled to first current terminals of the second differential pair.