back voltage meaning
[Electronics]
1. Voltage induced in an inductor by the flow of current through the inductor, so called because its polarity is opposite to that of the applied voltage. Also called counter emf.
2. A voltage used to obtain bucking action (e.g., the voltage used to zero the meter in an electronic voltmeter circuit).
3. Reverse voltage applied to a semiconductor junction.
1. Voltage induced in an inductor by the flow of current through the inductor, so called because its polarity is opposite to that of the applied voltage. Also called counter emf.
2. A voltage used to obtain bucking action (e.g., the voltage used to zero the meter in an electronic voltmeter circuit).
3. Reverse voltage applied to a semiconductor junction.
Examples
- The principle of the DFIG is that rotor windings are connected to the grid via slip rings and back-to-back voltage source converter that controls both the rotor and the grid currents.
- Other position feedback methods measure the back EMF in the undriven coils to infer the rotor position, or detect the Kick-Back voltage transient ( spike ) that is generated whenever the power to a coil is instantaneously switched off.
- Bray wrote : " That was the one aspect that we missed, but even had we understood the idea of minority carrier injection . . . we would have said,'Oh, this explains our effects .'We might not necessarily have gone ahead and said,'Let's start making transistors,'open up a factory and sell them . . . At that time the important device was the high back voltage rectifier ".
