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:
Sep. 19, 2023
Filed:
Dec. 23, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hayata Sakai, Osaka, JP;
Toru Tazawa, Osaka, JP;
Kenta Murakami, Osaka, JP;
Yusuke Nonogaki, Osaka, JP;
Renya Kawakami, Osaka, JP;
Abstract
A linear motor system includes: a stator including first to tenth coils; a mover including a permanent magnet; a switcher that switches one or more power supply target coils; and first to tenth amplifiers provided in one-to-one correspondence with first to tenth coils. One or more amplifiers that serve as new one or more power supply target amplifiers immediately after the switching calculate Δθ (t), which is a position deviation at time t=t, based on Δθ (t)=Δθ (t−td)+A−B, where A is a difference between an instructed position at time t=tand an instructed position at time t=t−td, and B is a difference between an actual position at time t=tand an actual position at time t=t−td, and supply power to the power supply target coils by the position deviation Δθ (t).