Self-sensing methods to drive micro-machines

Synchronous motors require sensors in order to control these devices in speed and/or position. Basically, the auto-commutation needs 3 sensors for a 3-phase type actuator. In micro-motors, as there is no more room to place the sensors, self-sensing approach must be used. The motor becomes a sensor it-self and electromagnetic phenomena are analyzed to detect the position of the rotor. These phenomena are magnetic saturation, back-EMF detection, Eddy current analysis and/or magnetic anisotropy variation. The present paper will describe the technique used to drive a micro-motor for Pico-satellite purpose.


Published in:
Proceedings Of The 2007 International Workshop On The Physics Of Semiconductor Devices: Iwpsd-2007, 639-644
Presented at:
14th International Workshop on the Physics of Semiconductor Devices, Mumbai, INDIA, Dec 17-20, 2007
Year:
2007
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4244-1727-8
Keywords:
Laboratories:




 Record created 2012-07-04, last modified 2018-09-13


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