US 11,888,459 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 Sep. 1, 2021, as Appl. No. 17/463,886.
Claims priority of application No. 202041052242 (IN), filed on Dec. 1, 2020.
Prior Publication US 2022/0173711 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03H 7/42 (2006.01); H03H 7/00 (2006.01); H01F 27/28 (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)] 10 Claims
OG exemplary drawing
 
1. A balun comprising:
a first winding having a first terminal coupled to an input, and having a second terminal coupled to a reference potential terminal;
a second winding magnetically coupled to the first winding and having a first terminal coupled to a first differential output, a second terminal coupled to a second differential output, and a center tap coupled to the reference potential terminal; and
a third winding magnetically coupled to the first winding and having a first terminal coupled to the reference potential, a floating second terminal, and a center tap coupled to the second differential output.