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Computer-Based Circuit Simulation
Published in Jerry C. Whitaker, Electronic Systems Maintenance Handbook, 2017
PSpice is capable of simulating amplifiers using dependent sources. Unlike the independent sources discussed previously, the output of a dependent source is controlled by a number of inputs. The program has four dependent or controlled sources: Voltage controlled voltage source (VCVS)Voltage controlled current source (VCCS)Current controlled current source (CCCS)Current controlled voltage source (CCVS)
Network Laws and Theorems
Published in Wai-Kai Chen, Circuit Analysis and Feedback Amplifier Theory, 2018
Ray R. Chen, Artice M. Davis, Marwan A. Simaan
Note that mesh analysis is undertaken for circuits containing dependent sources in exactly the same manner as in nodal analysis — that is, by first taping the dependent sources, writing the mesh equations as above, and then untaping the dependent sources and expressing their controlled variables in terms of the unknown mesh currents. Figure 2.43 shows an example of such a circuit; in fact, it is the same figure investigated with nodal analysis in the preceding subsection.
DC and Transient Circuit Analysis
Published in Bogdan M. Wilamowski, J. David Irwin, Fundamentals of Industrial Electronics, 2018
Carlotta A. Berry, Deborah J. Walter
Dependent sources establish a voltage or current in a circuit that is based upon the value of a voltage or current elsewhere in the circuit. One use of dependent sources is to model operational amplifiers and transistors. Table 1.1 presents a summary of the four types of dependent sources.
Loop Analysis of Circuits with Non-Convertible Current Sources
Published in IETE Journal of Education, 2021
Loop and node methods of analysis are very powerful techniques in solving electrical circuits. In loop (node) analysis, all the current (voltage) sources need to be converted into voltage (current) sources. This conversion step becomes difficult if there are non-convertible current (NCC) and voltage (NCV) sources. There are two types of NCC (NCV) as defined in Refs. [1,2]: Type 1 is a (dependent or independent) current (voltage) source that does not have a parallel (series) resistance, and Type 2 is a (dependent or independent) current (voltage) source that has a resistance R in parallel (series) but current though or voltage across R controls a dependent source. In Refs. [1,2], the authors have overcome the problem by replacing such a current (voltage) source with a ‘virtual’ voltage (current) source. A virtual voltage (current) source is the voltage (current) source that has the same value which actually exists across the current (voltage) source. However, there is no reduction in the order of the matrix involved.
A micromechanical analogue mixer with dynamic displacement amplification
Published in International Journal of Electronics, 2018
The first part (V2F_Converter) converts the electrical signals applied to its electrodes to mechanical forces. Here, the rest capacitances formed by Electrode-11 and the proof mass, and Electrode-12 and the proof mass are supplied to the model as constants. Moreover, the gap between these electrodes and the proof mass is also supplied to calculate the derivative of the rest capacitance with respect to displacement. The voltages applied to the electrodes and the proof mass can be provided in the SPICE schematic environment, and hence these are put as input–output pins. The force generated can be simulated using generic dependent source options in SPICE and the value is supplied through an output pin as a voltage source.