US 12,326,467 B2
Inductive sensing methods, devices and systems
Andriy Maharyta, Lviv (UA); and Mykhaylo Krekhovetskyy, Lviv (UA)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Jan. 19, 2024, as Appl. No. 18/417,318.
Application 18/417,318 is a continuation of application No. 18/099,105, filed on Jan. 19, 2023, granted, now 11,879,919, issued on Jan. 23, 2024.
Application 18/099,105 is a continuation of application No. 17/125,808, filed on Dec. 17, 2020, granted, now 11,561,249, issued on Jan. 24, 2023.
Prior Publication US 2024/0280620 A1, Aug. 22, 2024
Int. Cl. G01R 27/26 (2006.01); G01D 5/22 (2006.01); H03K 17/95 (2006.01)
CPC G01R 27/2611 (2013.01) [G01D 5/22 (2013.01); H03K 17/952 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
coupling a sense current to a modulator node, the sense current formed by an inductive sensor cell and a first switching matrix;
coupling a balance current to the modulator node;
generating, with a comparator coupled to the modulator voltage, a bitstream, the modulator voltage formed by a modulator capacitance, the sense current, and the balance current.