3Ĭomplete the following steps to configure and run a Transient Analysis: Since α depends on the value of the resistance, you will use three different values for R: 40 W, 200 W and 1 kW. In this example you will use Transient Analysis to plot the step responses of the RLC circuit. Note that as the value of α increases, the RLC circuit is driven towards an overdamped response. The value of the damping factor ( α) in relation to the natural frequency ( ω 0) determines the behavior of the circuit’s response. Where α is the damping factor and w 0 the natural frequency (or resonant frequency). According to the theory, the characteristic equation modeling this circuit can be represented as: Numerical integration is used to calculate the quantity of energy transfer over an interval of time.Ĭonsider the series RLC circuit shown in Figure 1. Capacitors and inductors are represented by energy storage models. The solution for the voltage waveform at a node is determined by the value of that voltage at each time point over one complete cycle.Īssumptions: DC sources have constant values AC sources have time-dependent values.A DC Operating Point Analysis is performed for each time point in the cycle.Each input cycle is divided into intervals.
Multisim performs Transient Analysis using the following process: Finally, the results, voltage versus time, are presented in the Grapher View. This analysis divides the time into segments and calculates the voltage and current levels for each given interval. In Transient Analysis, also called time-domain transient analysis, Multisim computes the circuit’s response as a function of time.
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