voltage generated when a permanent magnet motor is rotated; a limiting factor for the high speed torque output of a permanent magnet motor as it is opposite in polarity to the supplied voltage and directly proportional to motor speed.
The voltage generated when a permanent magnet motor is rotated. This voltage is proportional to motor speed and is present regardless of whether the motor winding(s) are energized or de-energized.
Decoder provides load compensation by maintaining constant motor rotational speed. Especially useful for low speed operations.
The voltage generated when the shaft of a permanent magnet motor is rotated. This voltage is proportional to rotational speed.
The voltage produced across a winding of a motor due to the winding turns being cut by a magnetic field while the motor is operating. This voltage is directly proportional to rotor velocity and is opposite in polarity to the applied voltage. Sometimes referred to as counter EMF.
The application of Snell's Law. When an electric motor is running it induces a current in the opposite direction of that current which is powering it.
Back electromotive force. (Also called counter EMF). The voltage generated in an inductor when alternating current flows through it. The counter EMF has a polarity opposite to the source voltage and it opposes a current change.
The rear electromotive force from loudspeaker drive units.
The voltage produced across a winding due to its interaction with the rotating magnetic field generated by the motion of the rotor. Back EMF is proportional to the velocity of the rotor and in opposition to the voltage applied to the winding by the motor drive.
A voltage opposing the normal flow of current but in particular opposing any variation of a current through a coil.