loop gain


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Noun1.loop gain - (telecommunication) the gain of a feedback amplifier or system as a function of how much output is fed back to the input; "if the loop gain is too great the system may go into oscillation"
amplification, gain - the amount of increase in signal power or voltage or current expressed as the ratio of output to input
telecom, telecommunication - (often plural) systems used in transmitting messages over a distance electronically
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References in periodicals archive ?
The researchers found that there was a correlation for greater oral appliance efficacy with favorable nonpharyngeal traits (lower loop gain, higher arousal threshold, and lower response to arousal), moderate pharyngeal collapsibility, and weaker muscle compensation.
Thus [[omega].sub.c] is the preferred crossover frequency, in order to create the "ideal" loop gain [[omega].sub.c]/ s.
Hence, for the purpose of achieve rapid tracking of the target current, P control mode (P is the ratio coefficient of the PID control and the value of P is defined as the inner loop gain factor) is generally adopted in the inner loop control, and the inner loop control algorithm is shown as Eq.
Besides, PLL behavior can be affected significantly by a loop gain, which is not discussed in detail in previous research.
The model starts from the antenna beam off-centered angles computed by (6) and the corrective network using the lag compensation network to increase open loop gain with lag compensation coefficient [beta] and time constant T; L is inductance and R is resistance in the motor model.
But the current source is necessary for the Colpitts to obtain enough loop gain to start oscillation.
where the loop gain is defined by the product of gains around forward and feedback paths [11].
The mathematical model for the loop gain of the controllable constant power generator shows that circuit has no stability problems for a wide range of resistance for the particular generated power.
where [beta] = [R.sub.G] / (2[R.sub.x] + [R.sub.G]), [tau] and K are the time constant and the open loop gain of the op-amp, respectively.
The loop gain matrix L is associated with the input or output loops broken simultaneously.
Similarly to the conventional Loop Shaping design [19, 20], shaping the open-loop nominal system corresponds to shaping the loop gain GK using the pre -and postcompensators [V.sub.1](s) and [V.sub.2](s).
Sliding mode control for the high-performance class-D audio amplifier provides higher loop gain across the audio frequency band and avoids the use of differentiators which are prone to high frequency noise.