I don’t know what gEDA uses but the qucsator engine used in QUCS is terrible for transient simulations such as that, and while ngspice is better LTspice seems to be a good bit faster. Even relatively simple designs (ex, simple integrator feedback onto a halfbridge feeding a buck converter) can have convergence issues with the classic spice algorithms. LTspice’s spice engine is really very good (way better than the open source spice implementations out there) at simulating the transients that come up in switchmode power supply design. Posted in Radio Hacks, Software Hacks Tagged amateur radio, ham radio, LTSpice, RF, simulation, SPICE Post navigation The Falstad simulator isn’t as powerful, but it does have some pretty neat features of its own. If installing LTSpice is too much of a commitment for you, you can also do simulations in your browser. We’ve seen other radio projects use LTSpice, including a regenerative receiver. In fact, you might find our video helpful when working through the first two post from. We also talked about the transformer problem in part three of our LTSpice tutorial. We were glad to see tackle transformers as they aren’t very easy to work through without some examples. Since it is popular, there are also plenty of examples and tutorials, including this one. It is powerful, easy to use, runs with Linux (using WINE), and the price is right. The final part even covers a double-balanced mixer with some transformers, so there’s quite a range of material. Of course, the first few cover simple things like voltage dividers just to get your feet wet. Sure, the posts do focus on radio frequency analysis, but these days lots of people are involved in radio work that aren’t necessarily hams.Įither way, if you are interested in simulating RF amplifiers and filters, you ought to check these posts out. We don’t think did himself a favor by calling his seven-part LTSpice tutorial LTSpice for Radio Amateurs.
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