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:
Apr. 10, 2018
Filed:
Sep. 25, 2015
Analog Devices Global, Hamilton, BM;
Christian Steffen Birk, Innishannon, IE;
John A. Cleary, Kilmallock, IE;
David Sayago Montilla, Limerick, IE;
Elizabeth A. Lillis, Athlunkard, IE;
Padraig O'Connor, Aherla, IE;
Eoin E. English, Pallasgreen, IE;
Patrick Pratt, Mallow, IE;
Kathleen Embrechts, Kellel-Lo, BE;
Wim Rens, Schriek, BE;
Jan Crols, Oud-Heverlee, BE;
ANALOG DEVICES GLOBAL, Hamilton, BM;
Abstract
Embodiments of the present invention may provide a method of measuring an unknown capacitance of a device. The method may comprise the steps of driving a test signal to a circuit system that includes a current divider formed by the device with unknown capacitance and a reference capacitor; mirroring a current developed in the reference capacitor to a second circuit system that includes a measurement impedance; measuring a voltage within the second circuit system; and deriving a capacitance of the unknown capacitance based on the measured voltage with reference to a capacitance of the reference capacitor and the measurement impedance.