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SolveMinibea Mitsumi and Renesas Electronics have a sensor-based one together Stepper motor with resolver and Stepper motor controller developed. The resolver-based motor has been optimized for use in robots, office automation, medical technology and care. Such applications require motors with more precise motor control and miniaturized form factors. They also have to be robust against environmental influences.

Minebea Mitsumi already has extensive experience in the field of resolvers in the form of sensors for automotive applications. Now the company has developed a resolver (angle sensor) for stepper motors, which is used in industrial and consumer applications.

As the market leader in 32-bit microcontrollers (MCU), Renesas has developed a new RDC converter (resolver-to-digital converter) that supports Minebea Mitsumi's new stepper motors. Driver software for controlling the RDC with a 32-bit RX MCU was also developed. Renesas also offers a resolver-based kit for controlling the motor with development tools, including a stepper motor with resolver from Minebea Mitsumi. With the associated evaluation board with RDC, users can quickly start developing.

Features of the stepper motor with resolver development

A stepper motor with resolver also enables high-precision motor control in harsh environments with heat, dust or vibrations. With the resolver-based motor, heavy loads can also be moved without interruption. Renesas and Minebea Mitsumi have developed a new type of resolver stepper motor and resolver motor control. It can be used to expand the range of applications for stepper motors. For example, the resolver stepper motors and their controls can be used to implement high-precision movements in the development of robots or driverless transport systems (AGVs) even in harsh environments.

The torque of the stepper motors is two to three times higher than that of existing products because no interruption control is required. The stepper motor control is suitable for broadband connection and extremely low speeds. The servo control optimizes the power supply and ensures low power consumption. Thanks to the high resolution of 200.000 P / R, high position accuracy can be achieved. And thanks to the high torque of these stepper motors, applications can be further miniaturized.

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More news from Minebea Mitsumi

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  • Minibea Mitsumi and Renesas Electronics have jointly developed a sensor-based stepper motor with resolver and stepper motor control. The resolver-based motor has been optimized for use in robots, office automation, medical technology and care. Such applications require motors with more precise motor control and miniaturized form factors. They also have to be robust against environmental influences.
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