Linear and Nonlinear Circuits: Basic & Advanced Concepts by Mauro Parodi & Marco Storace

Author:Mauro Parodi & Marco Storace
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Fig. 5.7Solution of the Case Study for CCVS

5.2.1.3 Voltage-Controlled Voltage Source (VCVS)

The voltage-controlled voltage source (VCVS) is a two-port (shown in Fig. 5.8) used to model a voltage amplifier.

Fig. 5.8Voltage-controlled voltage source (VCVS)

The VCVS descriptive equations are:

(5.4)

is the VCVS dimensionless gain, which can be positive or negative (if the port 2 of the VCVS degenerates to a short circuit) and is the driving voltage. Usually, , at least when modeling amplifiers.

From the descriptive equations, it is apparent that the only admitted basis is the mixed basis . Moreover, you can easily check that this two-port is also active and nonreciprocal.

Remark: Port 1 of the VCVS (as well as of the other voltage-controlled source, the VCCS) is just the pair of nodes across which the driving voltage is taken, as shown on the right side of Fig. 5.9.

Fig. 5.9Case Study for VCVS. On the right, the two driving variables and corresponding “hidden” ports are shown

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