Title:
MOTOR DRIVING DEVICE AND IMAGE FORMATION DEVICE
Document Type and Number:
Japanese Patent JP2019213323
Kind Code:
A
Abstract:
To provide a technique capable of quickly determining the presence/absence of occurrence of a disconnection in regard to a bifilar wound motor coil.SOLUTION: A driving device 30 for a motor having a pair of bifilar wound coils L1 and L2, comprises: switching elements 41 and 42 connected to the pair of coils L1 and L2, respectively; a current detection resistance 45 positioned between the switching element 41 and a ground; and a disconnection detection unit 73 that detects the presence/absence of a disconnection on the basis of a voltage detected by the current detection resistance 45. The disconnection detection unit 73 detects the presence/absence of a disconnection in the coil L2 on the basis of the magnitude of a speed of decrease D in voltage Vr when the voltage between opposite terminals of the current detection resistance 45 decreases immediately after the switching element 41 is switched from ON to OFF in a state where the switching element 42 is OFF.SELECTED DRAWING: Figure 5
Inventors:
FUJIMORI HARUMITSU
KOBAYASHI YUJI
YOSHIDA KAZUMITSU
KOBAYASHI YUJI
YOSHIDA KAZUMITSU
Application Number:
JP2018106440A
Publication Date:
December 12, 2019
Filing Date:
June 01, 2018
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
H02P8/36; B41J29/38; H02P5/46
Domestic Patent References:
| JP2006025575A | 2006-01-26 |
Attorney, Agent or Firm:
Ryo Nakajima