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Date
Re: All_Files.Htm
Same problem with Safari browser on Mac. Jim Wagner Oregon Research Electronics
By Jim Wagner · #62712 ·
Re: inverting opamp simulation: rapid component variation
John, This is true only at low frequcncies, and that's the reason the OP wants to know the effect as a function of frequency. Obviously, he needs to do this
By Rick · #62710 ·
Re: inverting opamp simulation: rapid component variation
Within the range where the op-amp has infinite gain, sure. At 1 MHz, I doubt it. He's talking about R2 variations at high frequencies, getting Bode plots. Under those conditions, the assumption falls
By Andy I · #62711 ·
Re: inverting opamp simulation: rapid component variation
What I mean here is, in the circuit whether it is 10KHz variation of R2 or that of vin, your opamp always 'thinks' the same- it is working at 10KHz.
By Mohammad A Maktoom · #62709 ·
Re: All_Files.Htm
In message <CALBs-TjeU10HN8E+Ba97R=LTNiyy-2ar5jyNQunNBcHqRv1Hqw@...>, dated Mon, 15 Apr 2013, Andy <Andrew.Ingraham@...> writes: That could explain why some of us now don't see the
By John Woodgate <jmw@...> · #62708 ·
Re: inverting opamp simulation: rapid component variation
In message <CALBs-TjHj0Lx41mORJzKDHfd+kPbe+U=GYY+WhLO1MsP+7LKGw@...>, dated Mon, 15 Apr 2013, Andy <Andrew.Ingraham@...> writes: Doesn't varying R2 just vary the gain by which the DC
By John Woodgate <jmw@...> · #62707 ·
Re: inverting opamp simulation: rapid component variation
I am not sure what you mean. But an op-amp is no different than other components. Frequency applies to every thing in the circuit, not just op-amps. That's an interesting hypothesis, but I think it's
By Andy I · #62706 ·
Re: All_Files.Htm
Like the question about labeling hundreds of nodes, that doesn't always work. I already have way too much stuff on my Desktop. Also, one of the computers is shared and I like to keep my regular files
By Andy I · #62705 ·
Re: Step a resistor over time
Hi Andy, Thanks for your response, but I do understand step vs slope. My question was actually about some difference in the syntax of the statement examples (which I couldn't detect). For some reason
By mxixkxe8 · #62704 ·
Re: inverting opamp simulation: rapid component variation
Hello All, @ Andy& Jim:Thanks for your input on tmax in .tran analysis. It was really useful and I plan to have a different thread on this soon. Now coming to the issue in thread, I have this feeling
By Mohammad A Maktoom · #62703 ·
Re: THD of a sine with a small dent at crossover
Hello John, This was indeed the trick to get a "useful" result for THD in the .FOUR report. I have had used 10us rise and fall time in my example which I uploaded yesterday. Best regards, Helmut
By Helmut Sennewald · #62702 ·
Re: THD of a sine with a small dent at crossover
In message <kkfbb8+osfi@...>, dated Sun, 14 Apr 2013, Echidna <mchambin@...> writes: You are getting these results because of your very short rise and fall times and short 'crossover'
By John Woodgate <jmw@...> · #62701 ·
Re: High-power Infrared LED model desired
In message <kkf8qp+pa6i@...>, dated Sun, 14 Apr 2013, sawreyrw <sawreyrw@...> writes: It's well-known to be incurable. -- OOO - Own Opinions Only. See www.jmwa.demon.co.uk They took me
By John Woodgate <jmw@...> · #62700 ·
Re: All_Files.Htm
In message <CALBs-TgwdGnyE+6k-DsnYM_d3xZ2OrmE-xvRep2TEYTBQCGQuQ@...>, dated Sun, 14 Apr 2013, Andy <Andrew.Ingraham@...> writes: Can you save it to your desktop, to make it easier to
By John Woodgate <jmw@...> · #62699 ·
Re: Germanium transistor
Hi Jim. Thanks for your comment on the type of material the transistor. I removed a tag MFG=Germanium-type. Use the my Standard.zip file. Bordodynov. 12.04.2013, 20:10, "gr8wi9"
By §¡§Ý§Ö§Ü§ã§Ñ§ß§Õ§â §¢§à§â§Õ§à§Õ§í§ß§à§Ó · #62698 ·
Re: Tutorial version of Joule-Thief
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By Jon Kirwan · #62697 ·
Re: inverting opamp simulation: rapid component variation
Jim Wagner <wagnejam99@...> wrote: Indeed they were; VERY different. But that was not what stood out. I expected all of the positive peaks (at a given frequency, and perhaps after the first
By Andy I · #62696 ·
Re: Step a resistor over time
The difference is the shape of the curves. They are both PWL (piecewise linear). The step one changes in steps, abruptly, followed by periods where the resistance stays fixed. The slope one changes
By Andy I · #62695 ·
Re: I need 74ls193 for LTSpice
... As you probably know already, the 74HC193 and 74LS193 are completely different technologies. The two chips might be interchangeable, and the 74HC part might be easier to obtain today, but note
By Andy I · #62694 ·
Re: I need 74ls193 for LTSpice
Hi The similation file of 74HC193 is bellow site. ----------------------------------------------------------------------------------------------------------------------------------
By ÖØËɺê²ý · #62693 ·