Invention Grant
- Patent Title: Motor controller
- Patent Title (中): 电机控制器
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Application No.: US12336985Application Date: 2008-12-17
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Publication No.: US08049445B2Publication Date: 2011-11-01
- Inventor: Hidenori Ishihara , Hiroaki Yamamoto , Nakatsune Shirai , Katsumi Endo , Tomoki Yamashita
- Applicant: Hidenori Ishihara , Hiroaki Yamamoto , Nakatsune Shirai , Katsumi Endo , Tomoki Yamashita
- Applicant Address: JP
- Assignee: Asmo Co., Ltd.
- Current Assignee: Asmo Co., Ltd.
- Current Assignee Address: JP
- Agency: Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd.
- Priority: JP2007-326419 20071218; JP2008-238402 20080917
- Main IPC: H02P6/00
- IPC: H02P6/00
Abstract:
A motor controller that outputs a drive signal to a direct-current motor to drive the motor is provided. The motor controller includes a drive circuit that generates the drive signal. The drive circuit superimposes on a direct-current voltage an alternating-current component having a frequency in the audible frequency range of the human ear, thereby generating the drive signal.
Public/Granted literature
- US20090153090A1 MOTOR CONTROLLER Public/Granted day:2009-06-18
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