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

HP leads the pack, but Apple sees 36% surge in notebooks, desktops compared to a year ago

New York City residents moving upstate will give hundreds of towns extra tax revenue to invest in new streetlights with IoT sensors, NYPA foresees

With about one-fifth the revenues of Intel, Nvidia’s market capitalization exceeds Intel’s as Nvidia stock hits record high