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:
Mar. 17, 2020
Filed:
Apr. 20, 2018
Mitsuba Corporation, Kiryu-shi, Gunma, JP;
Tomohiko Annaka, Kiryu, JP;
Hiroto Tanaka, Kiryu, JP;
Naoki Kojima, Kiryu, JP;
Toru Furusawa, Kiryu, JP;
Tomofumi Kobayashi, Kiryu, JP;
Mitsuba Corporation, Kiryu-shi, Gunma, JP;
Abstract
A brushless motor () which supplies currents to coils (U, U, V, V, W, and W) and rotates a rotor (), the brushless motor comprising a control apparatus () which switches and selectively executes: first energization control to start energization to the coils (U, U, V, V, W, and W) at first timing, and to continue the energization for a first period to control the rotation number of the rotor (); and second energization control to start energization to the coils (U, U, V, V, W, and W) at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor ().