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Patent Searching and Data


Title:
MOTOR DRIVE CONTROL DEVICE AND MOTOR DRIVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/167427
Kind Code:
A1
Abstract:
The motor drive control device (1) according to the embodiments comprises: an interphase short circuit part (40) that is connected to at least two phases of coil from among three phases of coil (Lu, Lv, Lw) and, in response to a short circuit signal, causes a short circuit between the coils of at least one set from among the three sets of different combinations of two coils from among the three phases of coil (Lu, Lv, Lw); a short circuit signal output part (50) that is connected between coil (Lw) and the interphase short circuit part (40) and, upon input of a braking control signal, outputs the short circuit signal to the interphase short circuit part (40); and a protection operation part (60) that, on the basis of the state of the voltage of one phase of coil (Lw) from among the three phases of coil (Lu, Lv, Lw), stops the short circuit caused by the interphase short circuit part (40).

Inventors:
YAMAMOTO, Katsunori (4106-73 Oaza Miyota Miyota-machi, Kitasaku-gu, Nagano 93, 〒3890293, JP)
KATO, Hiroyuki (4106-73 Oaza Miyota Miyota-machi, Kitasaku-gu, Nagano 93, 〒3890293, JP)
Application Number:
JP2019/000215
Publication Date:
September 06, 2019
Filing Date:
January 08, 2019
Export Citation:
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Assignee:
MINEBEA MITSUMI INC. (4106-73 Oaza Miyota, Miyota-machi Kitasaku-gu, Nagano 93, 〒3890293, JP)
International Classes:
H02P3/22; H02P27/06
Foreign References:
JPH01133583A1989-05-25
JPH0660581A1994-03-04
JPH02290174A1990-11-30
JP2018014781A2018-01-25
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (8-1 Kasumigaseki 3-chome, Chiyoda-ku Tokyo, 13, 〒1000013, JP)
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