开云体育

Hi there, as already posted by Helmut a while ago, Mike Engelhardt will come over to Germany to enlighten us on his LTSpice IV world tour. Although Stuttgart and Hannover are fully booked there are a

<snip> </snip> George, It's no more trivial than referring to the help file to find the correct syntax for using Laplace in dependent sources, which was the subject of your original question in this

That is true, and I have defined the space-bar to reload the settings, so it behaves similar to in the schematic editor. I have set the scales to make it easy to compare the voltages/currents in my

Guys all this is first year circuit theory. We all know and come across series to paarllel convertions of reactive networks that introduce FDR effects where the real part of the immitance function

In message <CANj54jyWx1_Dsz+T+61doGF8U1dZckc49KVUW+gkYSdzQGQJwQ@...>, dated Thu, 15 Sep 2011, Christian Thomas <ct.waveform@...> writes: No I didn't: I said radiation

FDR happen in all manner of nonlinear devices from ferrite cores to dielectrics where losses are a function of frequency. Try to model a ferrite core losses ( both series and ||Rs) with typical data

Hi, doesn't the skin effect represent a frequency dependent resistor? Regards, Schmocki

In Laplace expressions LTspice will accept such a construct. The key is to use the abs() function to convert the expression to purely real. If desired this can be converted to purely imaginary by

--- Carbon button microphone? -- JF

Hi all: Okay, let me try this one. Take a transistor, bias it and have the collector and the emitter be the input and output. The signal enters the collector by a cap and the signal exits via the

Correction "*Though I do remember nothing significant in phase angle within the audio band*" should be no significant change in resistance. I don't remember what the reactive elements were. CT

Tony, I missed this reply of yours earlier. I hadn't thought of the skin effect, though given that is the result of penetration of fields, it must have some reactive element, surely? I did actually

Hi again Tony, My starting question was whether radiation impedance actually held up as only real - his example of a possibility. John then slightly moved the goalposts in response by saying that they

Why not? Do you have a reading comprehension problem? This is a serious question because Help both clearly explains that you must provide a model statement to define your switch and gives you a link

Hello Michael, From the Help: S1 out 0 in 0 MySwitch .model MySwitch SW(Ron=.1 Roff=1Meg Vt=0 Vh=-.5 Lser=10n Vser=.6) You don't say what your switch will be used for, but I'm betting that if you

<snip> </snip> Hello Hubert, You are of course correct: the only resistor possible that had no reactive component would also have zero size. Any conductor of finite size inevitably has both inductance