Title:
モータ制御装置
Document Type and Number:
Japanese Patent JP5653976
Kind Code:
B2
Abstract:
The invention provides for a motor control device that includes a drive circuit (200) to drive an H-bridge circuit (100) to control a current fed to a motor (110), a drive command signal generator (300) to generate a drive command signal including a pulse signal having predetermined drive frequency and duty for sending a command to drive the motor (110), a current detection circuit (400) operable to output a comparison output signal on comparison between a current detection signal of a motor current and a target value signal, a latch circuit (500) arranged to hold a current detection result based on an ON signal of the drive command and the comparison output signal, a gate circuit (600) ranged to drive the drive circuit (200) based on the ON signal of the drive command and a latch output signal from the latch circuit (500), and a control unit (800) arranged to change the duty of the drive command signal based on the current detection result.
Inventors:
臼井 祐介
Application Number:
JP2012186827A
Publication Date:
January 14, 2015
Filing Date:
August 27, 2012
Export Citation:
Assignee:
株式会社東海理化電機製作所
International Classes:
H02P7/29; H02P7/291
Attorney, Agent or Firm:
Tadao Hirata
Takashi Nomiyama
Takashi Nomiyama