For example, devices may change from pulse switch modulation to burst-mode or to cycle skipping depending on the circuit's operation. Modern switch mode power supplies include controller logic with multiple modes of operation. Reducing the number of nodes the simulator needs to solve significantly reduces the computation required for a given simulation without compromising the accuracy or detail of the switching waveforms.Īnother benefit of these new simulation devices is that convergence problems are easier to avoid since they, like the board level component the model, have finite impedance at all frequencies. Also, a simulation circuit element was developed for power MOSFET's that accurately exhibits their usual gate charge behavior without using sub-circuits or internal nodes. LTspice IV is a high performance SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators.Ĭapacitors and inductors can be modeled with series resistance and other parasitic aspects of their behavior without using sub-circuits or internal nodes. LTspice IV can help you easily create your own schemes in order to simulate switching regulators. Create schemes to simulate switching regulators
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