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:
Jun. 17, 2025
Filed:
Dec. 10, 2021
Mabuchi Motor Co., Ltd., Chiba, JP;
Kohei Hamazaki, Chiba, JP;
MABUCHI MOTOR CO., LTD., Chiba, JP;
Abstract
A control device of a rotation detector inputs an AC signal to an excitation coil and detects a rotation angle on the basis of a signal obtained by a detection coil. The control device includes: a controller that can output a plurality of excitation signals having a predetermined voltage; and a signal generation unit that generates the AC signal on the basis of the plurality of excitation signals output from the controller. In addition, the control device includes a voltage dividing circuit that is interposed between the controller and the signal generation unit and decreases the predetermined voltage of the plurality of excitation signals by a resistor to transmit the voltage to the signal generation unit.