Motor Position Sensor from Electricfil Automotive

Click for larger image
Electricfil Automotive

The Electric Motor Position Sensor (EMPOS) from Electricfil Automotive, Miribel, France, is designed to provide rotor position in hybrid and electric vehicles. The eddy current device features a flat coil printed on a PCB with integrated processing electronics, measures rotor position on synchronous motors at speeds up to 20,000 rpm with measurement error <1° (electric), and draws 20 mA. A high-frequency AC current injected into the sensor's primary winding creates a magnetic field that then induces eddy currents in the target. The target then generates a magnetic field opposed to that of the primary winding; amplitude variations induced in the secondary winding can be used to determine rotor position with high accuracy.

Contact Info

Company: Electricfil Automotive
Country: France
Phone number: +33 (0)4-72-01-34-34
Fax: +33 (0)4-72-01-34-50

Suggested Articles

Two economic studies on expanding tech jobs to dozens of heartland places in the U.S. provoke a discussion on good work, good life.

Integration of Symantec business expected to help with security software sales

Analysts predict 5G shipments to explode in number in 2020