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:
May. 05, 2026
Filed:
Dec. 28, 2022
Mitutoyo Corporation, Kanagawa-ken, JP;
Patrick H. Mawet, Snohomish, WA (US);
Mitutoyo Corporation, Kanagawa-ken, JP;
Abstract
An inductive position transducer system includes a drive circuit and an inductive position transducer with at least a first field generating coil. The drive circuit includes a resonant circuit portion and an amplifier portion. The amplifier portion comprises a current-driven single stage differential amplifier and is configured to provide an oscillating drive signal to the resonant circuit portion which results in a driving of the field generating coil (e.g., at a coil voltage which may be larger than a power supply voltage, such as over 2× larger). A controller may adjust a bias current that is provided to the amplifier portion to maintain the voltage across the field generating coil (e.g., at a specified voltage level). The amplifier portion may comprise CMOS transistors and may be fabricated on a chip (as part of a low-voltage CMOS integrated circuit) along with other portions of the inductive position transducer system.