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Happy New?Year!? ? I have?made a small schematic of a photodiode charge amplifier - photocurrent integrator?(please find the Filelink below.) The photocurrent from?the photodiode part (pulsed

In message <CALBs-TgDOGn8n=-=pebpYJBKQsUMYqAVCheKmzaSqWo2ZPO3gA@...>, dated Tue, 31 Dec 2013, Andy <Andrew.Ingraham@...> writes: Aren't waveforms inherently variables - functions of

Perhaps the error is in the conversion to PSpice? How did you do it? To use in PSpice you would need 9 separate models to cover the PMOS size range. ...Jim Thompson Web Site:

Andy, My use of the word "variable" may have been inappropriate.? What I meant was "one of the values must be a signal that is generated during a simulation run."? These expressions will

Richard Sawrey wrote, "One of the values must be a variable, and the other 2 may be a variable or constant." So to use it, I need to add a .PARAM statement to convert my formula (involving one or two

Hello, I'm going to design a voltage-to-frequency converter (and also f-to-V-converter, need linearity < 0,01% at (500±200) kHz carrier) using a switched capacitor circuit e.g. described at LTC1043

Andy, One of the values must be a variable, and the other 2 may be a variable or constant. Rick

The Help page for "Waveform Arithmetic" show a limit function, limit(x,y,z). Every time I try to use it in a waveform, it generates an error: Error: undefined symbol in: "<<limit>>(1,2,3)" It seems to

Jim, Thanks for the reply. Yes, pspice doesn't support binning. Part of reasons we converted hspice model to pspice model was because of this. From what I learned from Mike Engelhardt, ltspice does

Thanks for kind replies. I used LTC1735_stepped_load_efficiency1.asc

Heres yet another trick I use for all my test schematics to measure input current, efficiency, and total internal power dissappation. Since I use this approach universally I automatically add the

Hello, I also had a very few weeks ago this inconvenience or problem. Be patient. Yahoo will delete it after 2 days. Best regards, Helmut

Jungyeon, You could just measure the input and output power and compute it yourself. The help file on steady also tells you how to do it if the steady state criteria is too tight. Rick

Vlad wrote, "For the life of me I cannot do it, no matter what. It appears to be deleted, but after changing directories it's still there." This is a world-wide Yahoo "Neo" problem. They broke their

Helmut Could you please delete the file Files/Filter/Filter/filter.sub ? For the life of me I cannot do it, no matter what. It appears to be deleted, but after changing directories it's still there.

PSpice does not support binning, so I had my oldest son, Aaron, write me a utility that adjusts the netlist after PSpice creates it. As for HSpice model peculiarities, see this link for some

---In LTspice@..., <oldeagleusa> wrote: I cannot post any model files here, but my simulation circuit if it helps. What is the problem? How do you think we can help you, if you don't

We did use converted models in pspice, but not in ltspice. In ltspice, we used the (hspice) models provided by the vendor directly. I cannot post any model files here, but my simulation circuit if it

Hello Jungyeon, You can either do it manually in the plot window while plotting the formulas for input power and output power (V(..)*I(...) or you can use MEASURE commands. The ladder idea is the most

Hello, I want to find power efficiency on inverter. the efficiency report doesn't work because of can't find steady state. Is there any solutions for find power efficiency? Jungyeon