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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. Another 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. Modern switch mode power supplies include controller logic with multiple modes of operation.

For example, devices may change from pulse switch modulation to burst-mode or to cycle skipping depending on the circuit's operation. An original new mixed-mode compiler and simulator were written into LTspice that allows these products to be realistically modeled in a computationally fast manner.

The review for LTspice has not been completed yet, but it was tested by an editor here on a PC. Create schemes to simulate switching regulators LTspice IV can help you easily create your own schemes in order to simulate switching regulators.

Oct 29 on bit and bit PCs This download is licensed as freeware for the Windows bit and bit operating system on a laptop or desktop PC from educational software without restrictions. Oct 29 is available to all software users as a free download for Windows. Our enhancements to SPICE have made simulating switching regulators extremely fast compared to normal SPICE simulators, allowing the user to view waveforms for most switching regulators in just a few minutes.

This video provides an overview of the advantages of using LTspice in an analog circuit design and how easy it is to get started. Download our LTspice simulation software for the following operating systems:. Download for Windows 7, 8 and 10 bit Version Download for Windows 7, 8, and 10 bit Version Download for MacOS View Demo Circuits. Additional support for LTspice can be found within our documentation, including keyboard shortcuts and a visual guide.

Our extensive collection of technical resources tackles a wide range of LTspice topics, like keyboard shortcuts, evaluating electrical quantities, and parametric plots.