US 12,244,288 B2
Balun with improved common mode rejection ratio
Shagun Dusad, Bangalore (IN); Vysakh Karthikeyan, Kerala (IN); Naveen Mahadev, Bangalore (IN); and Rafi Mahammad, Bangalore (IN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Dec. 6, 2023, as Appl. No. 18/531,264.
Application 18/531,264 is a division of application No. 17/463,886, filed on Sep. 1, 2021, granted, now 11,888,459.
Claims priority of application No. 202041052242 (IN), filed on Dec. 1, 2020.
Prior Publication US 2024/0113678 A1, Apr. 4, 2024
Int. Cl. H03H 7/42 (2006.01); H01F 27/28 (2006.01); H03H 7/00 (2006.01); H03H 7/38 (2006.01)
CPC H03H 7/42 (2013.01) [H01F 27/28 (2013.01); H03H 7/004 (2013.01); H03H 7/38 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A balun comprising:
a first winding having a first terminal coupled to a first differential input, a second terminal coupled to a second differential input, and a tap coupled to a reference potential terminal;
a second winding magnetically coupled to the first winding and having a first terminal coupled to a single-ended output and a second terminal coupled to the reference potential terminal;
a third winding magnetically coupled to the first winding and having a first terminal coupled to the reference potential terminal and a floating second terminal;
a first capacitor having a first terminal coupled to the first winding and a second terminal coupled to the second winding; and
a second capacitor having a first terminal coupled to the third winding and a second terminal coupled to the first winding.