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Re: can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
Tim wrote, "Yikes, my calculator says that's more than? 2.028e31 switches." That could be a challenge even in LTspice. At the end of the day, subcircuits don't make simulations smaller.? If there
By Andy I · #147207 ·
Re: can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
I got the impression that the switching mechanism is essentially the same as he describes in a 2008 lecture on SCC, at https://www.youtube.com/watch?v=2HlF5ZhCWXQ, where at about 55 minutes into the
By Tim Hutcheson · #147206 ·
Re: Plotting expressions in LTSPICE
In the Files </g/LTspice/files> section of the group's archives, there is a demo schematic
By Tony Casey · #147205 ·
Re: can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
Funny thing is, that I filed a patent, way back in about 2007 on balancing ¡®energy storage devices¡¯ using a switched-capacitor mechanism¡­ US 7,994,756 B2 have a fine day, all¡­ Barry Rowland
By Lohi Karhu · #147204 ·
Re: Plotting expressions in LTSPICE
I forgot: in .TRAN plots, "time" is also recognised. See: Help ?? LTspice XVII ?? Waveform Viewer ?? Waveform Arithmetic ..for definitive information. -- Regards, Tony
By Tony Casey · #147203 ·
Re: Plotting expressions in LTSPICE
Thanks for the quick reply. Pls find below the answers to your queries: Pls read the value of Cox as 8.5fF/um^2. It is the oxide capacitance per unit area. While implementing the formula fT =
By garvind25@... · #147202 ·
Re: Plotting expressions in LTSPICE
On 06/07/2023 09:13, garvind25@... wrote: > I am trying to plot a few graphs in LTSPICE XVII and have a couple of > queries. Hope someone will answer: > ** Can I define a constant capacitance
Re: Plotting expressions in LTSPICE
What you want to do can be done. Note the following: 1. In the Cox formula, LTspice stops parsing after the 'f'. What is 'u' anyway? Is it a fixed voltage? 2. You say that the y-axis unit isn't
By John Woodgate · #147200 ·
Plotting expressions in LTSPICE
Hi, I am trying to plot a few graphs in LTSPICE XVII and have a couple of queries. Hope someone will answer: ** Can I define a constant capacitance value in LTSPICE such as Cox = 8.5fF/u^2 so that
By garvind25@... · #147199 ·
Re: can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
Surely this is not Sam Ben-Yaakov's intention, as he readily describes a natural self-balancing behaviour (propagation indeed) permitting the use of 2 switches per cell in case it is acceptable that
By stephanecnockaert · #147198 ·
Re: Can't edit parameters
17.1 installed. I'll see what happens now. benjamin.voegeli@...> wrote:
By david vanhorn · #147197 ·
Re: ISL70444SEH declaration issue?
It helps if you upload a schematic that actually runs. You have a ".lib ISL70444SEH.lib" directive in the schematic, but the model file you uploaded is "ISL70444SEH.cir" and there are no analysis
By Tony Casey · #147196 ·
Re: ISL70444SEH declaration issue?
This happens sometimes where there are signals with fast edges (aka zero rise or fall times), discontinuities or indeterminate derivatives. An indeterminate derivative happens at a corner. See if you
By BRUCE108 · #147194 ·
Re: ISL70444SEH declaration issue?
You forgot the .TRAN statement, and your .INC command references the wrong filename.? Those are minor but not insignificant omissions.? I get suspicious whenever it is obvious that you did not
By Andy I · #147193 ·
ISL70444SEH declaration issue?
Hello all- I'm trying to use the ISL70444SEH model and a basic circuit to confirm that the model works correctly before moving on to anything more complicated. I'm having issues with the simulation.
By @sparky1111 · #147192 ·
Re: can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
Depends on what you mean by economical.? Looking at some of Sam Ben-Yaakov's earlier videos and papers of his grad students in Switched Capacitor Controllers, it seems that 2^n-1 switches would be
By Tim Hutcheson · #147191 ·
Re: Can't edit parameters
Hello David, What version of LTspice are you using? This sounds like a problem that was fixed LTspice 17.1+ Could you please download the latest version and let us know if that solves the problem?
By Voegeli, Benjamin · #147190 ·
can the Sam Ben-Yaakov self-adjusting switched-capacitors 4 cells balancer, economically manage 104 cells wired in series?
Hi, my attention got caught by https://www.youtube.com/watch?v=Gs9cbeGl7Rw https://www.youtube.com/watch?v=JBOHCfrccCE https://www.youtube.com/watch?v=BRezuwQCaKI Amazing, isn't?
By stephanecnockaert · #147189 ·
Re: Linear Transformer Model Which Can Also Simulate its LPF Function
Not so much. Actually leakage inductance does not vary too much, but since the effective inductance of the winding decreases, the leakage factor increases. Leakage exists even when there is a single
By Jerry Lee Marcel · #147187 ·
Re: Linear Transformer Model Which Can Also Simulate its LPF Function
Yes, this is a practical solution in many applications. In fact, my first thought was to look if there is a hidden third resonant winding. But I found out that the inverter transformer is indeed a
By Kerim · #147186 ·