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Title:
MOTOR CONTROL DEVICE, SHEET TRANSFER DEVICE, AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP2019097255
Kind Code:
A
Abstract:
To provide a motor control device capable of making a motor control correspond to a vector control system.SOLUTION: A motor control device estimates each of an A/D converter detecting a current value on a ground side of a driving circuit that drives a plurality of motors having two phase windings and an induction voltage occurring in each phase winding of each motor on the basis of the current value detected by the A/D converter. An electric angle is detected on the basis of the induction voltage estimated, and a vector control is performed on the basis of the electric angle detected and a micro-step pulse inputted into the driving circuit. The motor control device generates a PWM signal for controlling a switching element of the driving circuit, and executes the vector control by correcting a detection result from the A/D converter on the basis of a variation component of the A/D converter premeasured.SELECTED DRAWING: Figure 2

Inventors:
YAMAZAKI KATSUYUKI
Application Number:
JP2017222731A
Publication Date:
June 20, 2019
Filing Date:
November 20, 2017
Export Citation:
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Assignee:
CANON KK
International Classes:
H02P8/12; B65H5/06; G03G15/00; G03G21/00; H02P5/74
Domestic Patent References:
JP2017195761A2017-10-26
JPH08223920A1996-08-30
JPH08256499A1996-10-01
Foreign References:
WO2015182020A12015-12-03
Attorney, Agent or Firm:
Masatake Suzuki