Title:
モータ制御装置及び画像形成装置
Document Type and Number:
Japanese Patent JP7210672
Kind Code:
B2
Abstract:
To provide a motor control unit that makes motor control applicable to a vector control system.SOLUTION: A motor control unit comprises an A/D converter that detects a current value on the ground side of a driving circuit that drives a plurality of motors having two phase wires, and estimates induction voltage generated in the phase wires of the motor based on the current value detected by the A/D converter. The motor control unit detects an electric angle based on the estimated induction voltage, and performs vector control based on the detected electric angle and a micro-step pulse input to the driving circuit. The motor control unit generates a PWM signal for controlling a switching element of the driving circuit, and corrects a result of detection made by the A/D converter based on variation components of the A/D converter measured in advance before executing the vector control.SELECTED DRAWING: Figure 2
Inventors:
Katsuyuki Yamasaki
Application Number:
JP2021155446A
Publication Date:
January 23, 2023
Filing Date:
September 24, 2021
Export Citation:
Assignee:
Canon Inc
International Classes:
H02P21/22; H02P5/46; H02P8/12; H02P27/08
Domestic Patent References:
| JP2017184490A | ||||
| JP2017195761A | ||||
| JP2017046543A |
Foreign References:
| WO2015182020A1 |
Attorney, Agent or Firm:
Suzuki Masayoshi
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