Re: inverting opamp simulation: rapid component variation
Janiel Feng <m_zhao12@...> wrote: You should have created a new message topic with its own Subject, rather than hijacking someone else's question. Response forthcoming with a new Subject line.
By
Andy I
·
#62642
·
|
Re: inverting opamp simulation: rapid component variation
Hi, I imported models from Pspice to LTspice from TI and Analog Devices. But most of them have Convergence Problem. Is there anybody know how to solve this problem? Thanks. Janiel
By
Janiel Feng <m_zhao12@...>
·
#62641
·
|
Re: inverting opamp simulation: rapid component variation
Dear Michael, Thanks. Of course example but Helmut make sense (a modified version is here: http://groups.yahoo.com/group/LTspice/files/%20Temp/ni-opamp2.asc) in time domain. But, I don't want to be in
By
Mohammad A Maktoom
·
#62640
·
|
Re: inverting opamp simulation: rapid component variation
The quickest way to get a frequency response is to use an .AC analysis, rather than .TRANsient. Then you can sweep and plot output amplitude versus frequency. The thing to always remember about .AC
By
Andy I
·
#62639
·
|
Re: inverting opamp simulation: rapid component variation
Hi Maktoomi Helmut example is absolutely right. This is because a quick analysis of the circuit you have given shows the following:- Vo/Vin = R2(f)/R1 . It follows that Vo= [R2(f)/Rin]*Vin = Iin*R2(f)
By
Michael Peter Kiwanuka
·
#62638
·
|
Re: Photo Transistor
This is likely a MS-Windows problem, but you haven't given us nearly enough information to say for sure. You probably put a file in a directory owned by Windows (perhaps a subdirectory of C:/Program
By
Andy I
·
#62637
·
|
THD of a sine with a small dent at crossover
Hello. How to calculate, using maths and definitions, the THD of this signal: A sine with a small dent at the crossovers. S(t) = 0 for 0 < t < D where D is much smaller than T S(t) = sin omega*t for D
By
Echidna
·
#62636
·
|
Photo Transistor
Dear all, I am new to LTspice and electricity(my dad is my teacher), I was looking on google how to add a photo transistor. The only useful thing I found was to add a Photo coupler. I tried this in a
By
[GoG]huurm
·
#62635
·
|
Re: inverting opamp simulation: rapid component variation
Hello Helmut. Thank you for your example. I have no issue in performing transient. Question is how do I simulate this behavior in terms of frequency response. I want to see how output varies if the
By
Mohammad A Maktoom
·
#62634
·
|
Re: Tutorial version of Joule-Thief
In message <kkbun5+ctqn@...>, dated Sat, 13 Apr 2013, Tim <thutches@...> writes: Too late! You need to start at Grade 2 or earlier. (;-) It may be me, but I don't find non-linear
By
John Woodgate <jmw@...>
·
#62633
·
|
Tutorial version of Joule-Thief
All, I just uploaded a another copy of the JT, because I wnat to use it as a techng aid to introduce a family member to some EE concepts and LTspice. He just graduated high school and has no exposure
By
thutches
·
#62632
·
|
Re: inverting opamp simulation: rapid component variation
Hello, I have uploaded an example with a time-variable resistance. R=1k+5k*(V(ctrl)+1) Files > Temp > ni-opamp_.asc Best regards, Helmut
By
Helmut Sennewald
·
#62631
·
|
inverting opamp simulation: rapid component variation
Hi, In an inverting amplifier(Uploaded File: http://groups.yahoo.com/group/LTspice/files/%20Temp/ni-opamp.asc), suppose R2 fluctuates very rapidly (say at 10KHz or even higher, may be due to some
By
Mohammad A Maktoom
·
#62630
·
|
Re: How to find the max or min of a .measure command results?
Hello Tom, You could plot the results from .MEASURE View -> SPICE -> Error log Right-mouse-click -> Plot Stepped data You could also copy the results(numbers) from the Error Log file to any math- or
By
Helmut Sennewald
·
#62629
·
|
How to find the max or min of a .measure command results?
Greetings. How can I find the max or min of a .measure command from a Monte Carlo run? my command --> .measure dc trans find I4 when V(N016,N002)=0 Question: how to find the max or min of the data?
By
thomas.lafay
·
#62628
·
|
Re: Germanium transistor
I don't see either of these in the standard library. I placed a pnp in a new schematic then right-click Pick New Transistor. I just did a sync release too. Decades ago 2N2955 was a silicon part
By
Jim Booth
·
#62627
·
|
Re: Amplifier Design
This is a homework assignment, right? Let me ask you this: Did you go to college to learn how to do those things yourself, so that you can become a good engineer, or are you looking for free handouts
By
Andy I
·
#62626
·
|
Re: Bridge current sensor INA193 or AD8210 available?
SPICE models for INA193 and AD8210 are available in the web site of TI and Analog Device respectively. Regards. Varoli -- Prof. Vincenzo Varoli Politecnico di Milano Dip. Energia Via G. Ponzio 34/3
By
Vincenzo Varoli
·
#62625
·
|
Bridge current sensor INA193 or AD8210 available?
Hello, is there anywhere a model for a bridge current sensor available for downloading? Thanks Mario
By
mario.haselsteiner
·
#62624
·
|
Amplifier Design
How to use .param and .tran simulation in LtSpice? Please show its use in this question- Use SPICE to plot the output characteristic for NMOS transistors with different Length's (constant W/L). For
By
coolstar_aayush <coolstar_aayush@...>
·
#62623
·
|