开云体育

Hello * I want to do distortion analysis in the audio frequency range. This means I would like to simulate down to 0.00x percent distortion products. Frequently I end up with ca. 1% distortion just

Mike, Thanks for the quick response! LTspice is a fantastic program, and you provide best support of any software! You are providing a tremendous service. Brad polarity. ---

Brad, My high speed connection just came back up so I was able to update the web leaving for the weekend. Just do Tools=>Sync Release to get version 2.03f which has the behavioral current source

Brad, Thanks for the report. Your's right, the current is reported reversed from the direction it's really going in the behavioral current sources, but it is going in the right direction as far as the

The measured current in B sources appears to have reversed polarity. When probing on B sources, current flowing from (-) to (+) is reported as positive. This is assuming the first node in the netlist

Mike, Thanks for the detailed response. I'll try your suggestions to interactively control the efficiency calculation. Could you make the efficiency analysis work with an external clock? It does put

John, The reason the efficiency works the way it does is like this. The efficiency of a SMPS in simulation only relates to the efficiency from the real SMPS when the simulation is done in steady

Thank for the answer I was mixing definition with state plane.

irf610, An eye diagram wraps the time scale at the baud rate. The idea is that the 1's and 0's should be clearly discernible from each other. That is, in the middle of the bit time period, the signal

Dosent seem to give logicale result or maybe this function is not doing what I think it it should. So what does it represent? -- not much different than normal data apart that it is shifted around.

Mike, Would it be possible to add the capability to do an efficiency analysis on a circuit that doesn't use an LT switching regulator IC? I've found this function to be very useful, but not all

There's different ways to handle this, but the cleanest way is barely documented. What you can do is make a symbol that tells the netlister which file to include whenever you place the symbol on a

Hello * I'm searching for the Spice models for: BJT 2SA1302A Toshiba 2SC3281A Toshiba 2SA1943 Toshiba 2SC5200 Toshiba 2SA1837 Toshiba 2SC4793 Toshiba 2SA1376 NEC 2SC3478 NEC MJL3281A ON MJL1302A ON

Meanwhile I found a couple of collections of Spice Models and I also feel the need to organize them in some sort of user defined folder structure. The standard.bjt etc. to my opinion could remain

Thanks Mike It's a useful facility to have so quickly! I'll try it out. Regards, Norbert.

Add a SPICE directive like, ".options baudrate=250 delay=1.5m" to the schematic. The eye diagram period will be 1/baudrate and the phasing of the bits in the diagram will be shifted per the delay. The

Hi, How do you use the eye diagram function in swcad?

Norbert, OK, I just released version 2.03b which starts to do this. After running a .op simulation, do View=>SPICE Error Log to see the results. --Mike __________________________________ Do you

Thanks for help on both topics, Regards.

Norbert, You can run a netlist in batch mode like this: scad3.exe -b myfilename.cir The waveform data will be in the file myfilename.raw and the .log file will be in the file myfilename.log. --Mike