#Qucs examples download update#
#Qucs examples download software#
#Qucs examples download simulator#

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#Qucs examples download update#

In ADS you could do multi-dimension sweeps in real time (drag sliders for component values, and see the result pane update immediately), and it had advanced algorithms for doing optimizations (click minimize S11 and NF, then it could tweak dozens of parameters and find a solution in seconds).Ĭyberdeck Builders Talk Shop In Roundtable Chat 3 Comments The only thing I wish QUCS had was a better way to do optimizations. The only other tool I have used that I liked as much as QUCS was Agilent’s ADS (licenses starting at about $10k) in terms of ability to quickly do RF design work. But the real difference is in the macroblocks provided by linear, you can get a macroblock for most of their controller chips which implements the entire control circuit as a ‘black box’ that simulates very efficiently and lets you easily simulate even complicated circuit designs with a lot of parasitic components (ringing, etc) for thousands of cycles in seconds.īut, for RF (and other small signal or simple linear circuits) QUCS really shines, since it was written from the ground up to be able to RF work. 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.

#Qucs examples download software#

Posted in Radio Hacks, Software Hacks Tagged amateur radio, ham radio, LTSpice, RF, simulation, SPICE Post navigation

#Qucs examples download simulator#

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.