US 11,940,826 B2
Inductor detection
Sachin Sudhir Turkewadikar, Bangalore (IN); Nitin Agarwal, Bangalore (IN); and Madhan Radhakrishnan, Bangalore (IN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Jan. 11, 2022, as Appl. No. 17/572,692.
Application 17/572,692 is a continuation of application No. 16/689,545, filed on Nov. 20, 2019, granted, now 11,256,276.
Application 16/689,545 is a continuation of application No. 15/710,883, filed on Sep. 21, 2017, granted, now 10,534,387, issued on Jan. 14, 2020.
Application 15/710,883 is a continuation of application No. 15/088,612, filed on Apr. 1, 2016, granted, now 9,804,617, issued on Oct. 31, 2017.
Claims priority of provisional application 62/257,832, filed on Nov. 20, 2015.
Prior Publication US 2022/0129024 A1, Apr. 28, 2022
Int. Cl. H02M 3/158 (2006.01); G05F 1/56 (2006.01); H02M 1/00 (2006.01); G01R 31/28 (2006.01)
CPC G05F 1/56 (2013.01) [H02M 1/0045 (2021.05); G01R 31/2813 (2013.01); H02M 3/158 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A circuit comprising:
an input;
an enable input:
a first resistor having a first terminal and a second terminal;
a current source;
a first transistor including:
a first control terminal coupled to the enable input;
a first body terminal coupled to ground;
a first current terminal coupled to the input; and
a second current terminal coupled to the first terminal of the first resistor; and
a second transistor including:
a second control terminal coupled to the first terminal of the first resistor;
a second body terminal coupled to ground;
a third current terminal coupled to the current source; and
a fourth current terminal coupled to the second terminal of the first resistor.