Title:
MOTOR ABNORMALITY DETECTION DEVICE, CONTROL METHOD FOR MOTOR ABNORMALITY DETECTION DEVICE, AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2021141709
Kind Code:
A
Abstract:
To solve the problem in which: a conventional motor abnormality detection device employs a configuration that provides a comparator for every motor driver, and in order to prevent an increase in the scale and cost of a system, allows the wired OR connection of output from the plurality of comparators; however, in such a configuration, when an overcurrent is generated, it cannot be determined which motor is related to the generation of the overcurrent.SOLUTION: In the present invention, an analog switch is provided on an input side or an output side of a comparator connected with a current detection resistor by using resources prepared for an analog FPGA, and on and off of the analog switch is controlled. A motor abnormality detection device can thus be provided which can specify a portion that has caused the generation of an overcurrent without causing an increase in cost.SELECTED DRAWING: Figure 15
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Inventors:
ISHIKAWA SATORU
Application Number:
JP2020037551A
Publication Date:
September 16, 2021
Filing Date:
March 05, 2020
Export Citation:
Assignee:
CANON KK
International Classes:
H02P5/46
Attorney, Agent or Firm:
Hinoki International Patent Office