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Hello everybody, by default LT Spice saves the simulation results in the "project" directory. Is it possible to change the (default) location of the simulation results? I would like to keep my

Alan, sorry but you are very careless with your schematic. It still can not be run. Please try to remove mistakes from your schematics before uploading them. Regards, Andy

Hello, I want to know if it is possible to simulate different models of diodes or transistors in one simulation with a var command. Thanks

Hi Andy I send the wrong file, I upload the correct one again. I plot V(out1)/V(b), it about 0dB. It should be about 56dB or so Thanks Alan

Hello, Every flipflop(RS, DFLOP) needs some delay either done with td and/or trise. Right-mouse-click on the RS-flipflop. SpiceLine: td=10n Now it works. Best regards, Helmut

Ok, I just to upload my schematic a (temp) folder , is a power supply . You can see my (bv.asy) with his conditional sentence (if). When I put to simulate the Ltspice does not begin the simulation, I

Hello everyone, since i've update to lastest version of LTspice I can't use the function which allow me to calculate RMS or AVG of a signal from scope. I can't neither find the old LTspice's version

Typo: read raget=target

Alan wrote: "I deleted the opamp from the circuit already, I forgot to delete .include OPA2604." If it (the op-amp, not the .include statement) is really not in the circuit already, then you uploaded

Hi Helmut or Andy, How can I measure the power transmitted to the Load in a resonant transformer using LTspice. Best regards, Michael P Kiwanuka

The Opamp is no longer used. Alan

I deleted the opamp from the circuit already, I forgot to delete .include OPA2604.

Alan, Where is OPA2604.txt? Regards, Andy

Hi, Andy: Thank you for the replies, I understand what's the differences when using '.STEP' & '.subckt', I think that's because 'AKO' not supported in .subckt. And the subckt in (onsemi)'s lib is

Hi I just uploaded my files into the Temp folder. I ran the simulation of the loopgain and phase, I got less than 0dB loopgain, that's not right. I plot Out1/b to get the loopgain and phase, it's not

I agree it's not the best choice, but it does work. Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK

Hello John, The 741 is too slow. I would use an opamp with at least 10MHz GBW. Best regards, Helmut ---In LTspice@..., <jmw@...> wrote : I agree; even a 741 would do for small

I agree; even a 741 would do for small signals! Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK

Hello John, Sorry, you are correct. The cut-off frequency is 38kHz. It's still a frequency where one can find much better suitable opamps. Best regards, Helmut ---In LTspice@...,

That's odd. I get the -3 dB frequency as 38 kHz. The point about the resistor values is quite subtle, as it doesn't apply to most common op-amps, and the data sheet doesn't draw attention to it. Best