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. 19, 2018
Filed:
Feb. 02, 2017
Rohm Co., Ltd., Kyoto, JP;
Hikaru Sasaki, Kyoto, JP;
Kenji Asai, Kyoto, JP;
Yuki Gohara, Kyoto, JP;
Masateru Moroizumi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A control circuit for a motor, includes: a plurality of m number of analog ports to each of which a detection signal indicating an electrical state of the motor is input, m being an integer of 2 or more; an A/D converter including a multiplexer to receive detection signals of the m number of analog ports and being configured to convert a detection signal selected by the multiplexer into digital data; a processor to generate a drive command of the motor based on the digital data; a pulse width modulator to perform pulse width modulation to generate a PWM signal based on the drive command; and an interface circuit to be triggered by at least one internal signal generated in the control circuit to control an operation of the A/D converter according to a control command from the processor and deliver the digital data to the processor.