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back emf

   Also found in: Wikipedia 0.01 sec.
back emf
n
(Electronics) Electrical engineering an electromagnetic force appearing in an inductive circuit in such a direction as to oppose any change of current in the circuit


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The DIN rail-mountable CMM200 monitors the back EMF generated by a motor to detect whether it is safely at rest or in motion.
Program outputs are in the form of design sheets listing the calculated parameters and graphical displays of various waveforms, including current, voltage, torque, back emf, flux linkage, gap flux, speed vs torque curves, and thermal performance.
Additionally, Microchip announced five motor control software solutions for: Power Factor Correction (PFC), sensorless Field Oriented Control (FOC) of a PMSM motor, sensorless FOC of an ACIM motor, sensorless control of a BLDC motor using Back EMF filtering and sensorless BLDC control with Back-EMF Filtering Using a Majority Function.
 
 
 
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