Motor provides position control without encoder
QuickSilver Controls Mosolver is a servo motion actuator that infuses a position feedback sensor into the structure of a high pole count ac motor; no encoder is needed for closed loop motion control.
QuickSilver Controls Inc. created the Mosolver, a servo motion actuator that integrates a position feedback sensor into the structure of a high pole count ac motor. The QuickSilver Controls Mosolver is a combination motor and resolver in the same footprint as the motor alone, enabling compact, inexpensive, and robust closed loop motion control. The encoder is no longer needed, and the resolver function is combined with the motor to allow for commutation and position sensing.
Sense coils have been added within the motor, allowing the rotor position to be determined. The voltages induced in these small sense coils result from a combination of the pulse width modulation (PWM) current ripple and flux steering, which occur by the interaction of the rotor and the stator magnetics.
Elimination of a separate feedback device reduces cost and size, eliminates alignment (and loss thereof), and greatly improves the ruggedness of the system. The QuickSilver Controls Mosolver is an energy-efficient, precise, and cost-effective motion control solution, the company said. Get rid of the encoder by using the QuickSilver Controls Mosolver. QuickSilver Controls is based in Covina, Calif.
- Edited by Mark T. Hoske, content manager, CFE Media, Control Engineering and Plant Engineering, mhoske(at)cfemedia.com.
|Search the online Automation Integrator Guide|
Case Study Database
Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.