ABSTRACT
In practical applications, power converters are normally operated under closed-loop control, which requires comparing the desired output with the actual output. The control implementation requires summing, differentiating, and integrating signals to obtain the desired control strategy. An op-amp may be modeled as a linear amplifier to simplify the design and analysis of op-amp circuits. The linear models give reasonable results, especially for determining the approximate design values of op-amp circuits. The simulation of control systems requires integrators, multipliers, summing amplifiers, and function generators. These features can easily be simulated by PSpice. Additional PSpice features, such as Polynomial, Table, Frequency, Laplace, Parameter, Value, and Step, make PSpice a versatile tool to simulate complex control systems.
