Latest threads in Electronics Computer-Aided Designshow only best voted threads
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ALPS switches
I think I screwed up. I am building a test fixture and need to have some user controls on the board. I added a few push buttons as controls and LEDs for feedback. While I was browsing Mouser looking...
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16 years ago
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LTspice Behavioral Expression Question
Can LTspice handle TANH in a behavioral expression? I'm sending a client a netlist and want to make sure it'll run on LTspice. Thanks! ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog...
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16 years ago
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PROTEL 99 SE AREA ROUTING QUESTION
Hello ! I am a new member and please forgive my inexperience. I would like to autoroute just a selected area in my PCB, but I don't get the result I expect. When I select the area, the program...
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16 years ago
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PCB manufacture
I had some PCBs made with 22 boards per panel (small boards). I wanted a single panel for prototypes, but it turned out I could get 6 panels for only $500 more. This would get me through the first...
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16 years ago
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New version of Eagle
CADsoft has a beta version of Eagle 5.0 on their web site. I downloaded it and it still has their weird user interface. I think I'll stick with Pulsonix. Leon
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16 years ago
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Gerber viewer/handler
Any recommendations for a Gerber viewer and/or handler greatly appreciated. The more the merrier (don't ask why) but I really need a good long list. Thanks
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16 years ago
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Group's favourite SPICE software
Hello group, I'm looking for SPICE software recommendations, both freeware and for purchase. Whose programs do you use, and why? Thanks, Francis.
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16 years ago
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Drawing questions
I see these frequently on PCB figures (REF BSC TYP). Could someone kindly explain what these mean? REF = reference (to what)? I pretty sure that BSC is basic spacing between centers? TYP = ? Also, in...
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16 years ago
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LTSpice rounding error?
Also posted to LTSpice Yahoo Group: This oscillator is "inter-modulated" by SINE voltage V2, even though the latter is not connected! Is this due to rounding errors in the solver? Is there any way to...
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16 years ago
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Error in Spice simulation
I have a strange trouble with a NetList Spice The trouble is relative to vdd. vdd 2000 0 dc 5 returns: Node '2000' has only one component connected Node 2000 is an input node for the subcircuit MAIN...
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16 years ago
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gEDA Binary Suite released and Google Summer of Code 2008
Hi, I have released the second official version of the gEDA Binary Suite for x86 GNU/Linux. This binary suite has the following features: * Should work on any GNU/Linux distribution released after...
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16 years ago
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Simulated RF amplifier stability, but with a filter?
Hi All, This has been really bugging me: When I design and simulate an RF amplifier (LNA) for a class project, it shows points of huge instability (below the desired passband 'K' is *way* under 1 )....
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16 years ago
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LTspice - .step waveform viewing
Greetings: I have done a .step (with 4 parameter values) on a .tran simulation. When viewing a trace in LTspice (ver. 2.23r) with the expression for ex.: v(N001) all of the simulation steps are...
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16 years ago
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Trying to learn new methods for PCB Layouts.
I've been a tech for 30 or so years, and a hobbyist even longer. I've drawn PCBs using sharpies and the little transfer pads Radio Shack used to sell, then moved on to transfers. Lately I've been...
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16 years ago
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Temperature Sweep in DXP?
Is there any way to get a plot of output vs temperature rather than a series of sweeps at different temperatures?
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16 years ago
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