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Hello, What are your panel parameters (Vov, Isc, Vmpp, Impp etc.)? What kind of algorithm are you using (Perturb and Observe (PnO), Incremental Conductance (InC) etc.)? What is your MPPT frequency?

The "left" part of the I-V curve with the current load is physically unrealisable because it requires the rail Vpv400W to go negative. This can't happen with a resistive load. Try adding the "LOAD"

Hi, : This may also enable your joy ,similar to the website. By sample & hold. Wish you happy. Version 4 SHEET 1 1224 680 WIRE 128 64 32 64 WIRE 336 112 304 112 WIRE 128 160 64 160 WIRE 32 272 32 64

I've uploaded /g/LTspice/files/Temp/DutyCycleModulator.zip which uses a switch, a ramp, and a triangle voltage to approximate your desire. Donald.

Hi, I am trying to understand how MPPT works in a buck converter with resistive load by doing an LTSpice simulation. I have a PV model which works very accurately with a current sink load. And it

Hello, I am fairly new to LTspice, so my suggestion may not be the best way to go about implementing what you are looking for. However, can the following trick help you? PWL(repeat forever 0 0.01

Dear Dennis, A very good day to you. Again thanks a lot for explaining the insights on how to use .meas intelligently. I am grateful to you, teacher. I looked at figure 5 of the white paper carefully.

Hi, I am trying to create a duty cycle that kind of continuously varying like in a 200ms simulation I want a duty cycle start from 0.01 to 0.99 ?(approximately 0.01 Duty increase per 2 ms). How can I

Hi All How can one restore the Classic Menu in LTSpice Version 24.1.6? Regards ik

That might be so, but I personally doubt it.? Just my opinion. That might be why these UniversalOpamp models lack any explicit provision for Rin(CM).? It seems to have been ignored - even though its

Yes and no. They were re-packaged with altered symbol and model names.? But as far as I know, the innards of each of the models themselves were unchanged by ADI. Andy (

Weren't these models changed soon after AD took over? -- This email has been checked for viruses by AVG antivirus software. www.avg.com

It seems as if whoever designed these Universal Opamps gave no thought whatsoever to a common-mode input impedance.? Not one of them has a parameter for that. If you ground either input pin and

Far from 'universal', then. These surprising issues should be fixed, because the errors caused by the present models could be very serious. Input resistances are often very important in opamp

I also noticed the input impedance issue some time ago.? The model designer(s) of the universal opamp seem to have assumed that all opamps have MOS inputs wherein the input resistance is determined

Definitely my fault. For the confusing. Too much cross references. Regretting..

In two versions , LTspice XVII & V.24, The lib file 'ADI1.lib' has a little difference, in XVII there is one line extra added that caused the error, this line doesn't exist in V.24. Thus, if in

Hi, : I must say sorry, the problem doesn't exist. I just tried in another platform, with XVII & V.24, ran the same file using 'AD746', it runs well. I guess, it's because the search paths

Hi, : The UniversalOpamp model really makes sense, it draws lots current flow. Since it hurts because of the larger power dissipation, so I give a shot by using local 'AD746', it draws much fewer

Problem fixed ... found out how to make Microsoft Edge open .html files, instead of Notepad, in my Laptop App Settings ... bingo ... I must have set up Notepad as the Default when I was adding 3rd