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Patent Searching and Data


Title:
MOTOR DRIVE CONTROL DEVICE AND MOTOR DRIVE CONTROL METHOD
Document Type and Number:
Japanese Patent JP2019149917
Kind Code:
A
Abstract:
To realize fully self-sustained no-power braking with a simple circuit configuration.SOLUTION: A motor drive control device 1 according an embodiment includes a motor drive unit 10 that selectively energizes three-phase coils Lu, Lv, and Lw of a motor 3, a motor control unit 20 that switches the energized phases of the coils Lu, Lv, and Lw energized by the motor drive unit 10 in a predetermined order by outputting a drive control signal to the motor drive unit 10, a braking control unit 30 that outputs a braking control signal, an inter-phase short-circuit unit 40 that is connected to the coils Lu, Lv, and Lw, and that short-circuits each of three sets of the coils Lu, Lv, and Lw, two of which have different combination from each other in accordance with a short-circuit signal, and a short-circuit signal output unit 50 that is connected between the coil Lw and the inter-phase short-circuit unit 40 and outputs a short-circuit signal to the inter-phase short-circuit unit 40 when a braking control signal is input.SELECTED DRAWING: Figure 1

Inventors:
YAMAMOTO MASANORI
KATO HIROYUKI
Application Number:
JP2018035101A
Publication Date:
September 05, 2019
Filing Date:
February 28, 2018
Export Citation:
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Assignee:
MINEBEAMITSUMI INC
International Classes:
H02P3/22
Attorney, Agent or Firm:
Toranomon Intellectual Property Office