small-signal parameter

small-signal parameter

[′smȯl ¦sig·nəl pə′ram·əd·ər]
(electronics)
One of the parameters characterizing the behavior of an electronic device at small values of input, for which the device can be represented by an equivalent linear circuit.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Typical small-signal parameter measurements are shown in Figure 5 and performance data for various models is presented in Table 1.
In the development process, simulations were used, together with microwave measurements, to optimize small-signal parameters and third-order intermodulation products.
Using small-signal parameters, the start-up condition can be checked, and with the transistor's large-signal S-parameters at a certain input or output power, the oscillator can be designed the way that the true loop power will meet the large-signal estimate.
The small-signal parameters of the transistor equivalent circuit are listed in Table 1.
In this article, small-signal parameters are defined, a simple unstable RLC circuit for which the criterion of Equations 1 and 2 fails is analyzed, conditions under which it can be applied are presented and the Nyquist stability criterion is discussed.
A DC large-signal model defines the set of nonlinear equations describing the behavior of the drain-source current, transconductance and output conductance, which LASIMO optimizes to match the corresponding measured, bias-dependent small-signal parameters. Similarly, a capacitance large-signal model defines the nonlinear equations describing the behavior of the gate-source capacitance and gate-drain capacitance, which the program optimizes to match the corresponding measured, bias-dependent small-signal parameters.
An automatic data-acquisition program with the capability to extract the heterostructure FET (HFET) small-signal parameters directly is presented.
Since small-signal parameters are derivatives of a nonlinear function, accuracy cannot be ensured by this method by deriving the small-signal parameters.