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US 12,519,405 B2Granted
Positioning device and control method thereof
AssigneeImasen Electric Industrial Co., Ltd.
InventorsKentaro Nagatani, Koichi Yamanoue
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Abstract
A positioning device contains an actuator composed of a DC motor, a deceleration mechanism, and a single-phase rotation sensor for detecting the amount of rotational displacement of the deceleration mechanism, and an electronic control unit that electrically drives the DC motor. The electronic control unit decelerates and controls the DC motor to stop at a target rotation stop position, which is approximately midway between the rising edge and the falling edge of the output pulse of the rotation sensor.
Claims21
A positioning device, comprising:
- an actuator connected to a moving body and composed of a DC motor, a speed reduction mechanism, and a single-phase rotation sensor for detecting an amount of rotational displacement of the speed reduction mechanism;
- and
- the electronic control device for electrically driving the DC motor;
- wherein
- the electronic control device comprises stop control means for performing deceleration control so as to stop the DC motor, with a target rotation stop position set substantially midway between the rising edge and the falling edge of the output pulse of the rotation sensor.
2 more elements
Dependencies are inferred from the claim text.