モータ制御回路、モータ制御装置、アクチュエータ及びステッピングモータの制御方法

Japanese Patent JP6613216

B2

A motor control circuit (12) capable of performing a high-precision step-out determination under a wide range of conditions. The motor control circuit (12) includes an input voltage measuring unit (125), a temperature measuring unit (128), a back electromotive force measuring unit (126), a determination threshold value setting unit, and a determination unit. The input voltage measuring unit (125) measures an input voltage input to a motor control device (10). The temperature measuring unit (128) measures temperature. The back electromotive force measuring unit (126) measures back electromotive force induced in a coil for which energization is stopped out of the coils of plural phases. The determination threshold value setting unit sets a determination threshold value of back electromotive force based on a measurement result of the input voltage measuring unit (125) and a measurement result of the temperature measuring unit (128), and based on a determination reference value that is preset for each of plural partial areas sectioned in a matrix form with a threshold value relating to the input voltage and a threshold value relating to the temperature. The determination unit makes a determination on step-out of a stepping motor (20) based on a measurement result of the back electromotive force measuring unit (126) and the set determination threshold value of the back electromotive force.

Ayaka Shimada
Kazuo Takada
Hidetoshi Hijikata

JP2016161974A

November 27, 2019

August 22, 2016

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MinebeaMitsumi Co., Ltd.

H02P8/38

JP2014128070A
JP11294196A
JP11018491A

Einzel Felix-Reinhard
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Yutaka Tsubaki
Ishikawa Tatsuro
Tsuyoshi Shiraka

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