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:
Nov. 10, 2020
Filed:
Aug. 26, 2019
International Business Machines Corporation, Armonk, NY (US);
Stuart B. Benefield, Durham, NC (US);
Samuel R. Connor, Apex, NC (US);
Matthew S. Doyle, Chatfield, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments herein describe a variable inductor containing a capillary. The capillary includes an eutectic conductive liquid (e.g., EGaIn) containing suspended magnetic particles and an electrolyte (e.g., NaOH). In one embodiment, the variable inductor has a pair of electrodes (e.g., negative and positive electrodes) at the respective ends of the capillary to seal the eutectic conductive liquid and the electrolyte. The variable inductor also includes an inductor coil disposed around the capillary, and the inductor coil is connected to a circuit and provides inductance for the connected circuit. Using a DC voltage between the pair of electrodes, the eutectic conductive liquid can extend inside the capillary, which in turn, causes the variable inductor to have a desired inductance.