Re: AC Analysis - show Mag in dBuV versus Freuqncy
Right-click on V(out) at the top of the plot window and change it to V(out)/1u in the pane that opens. But that is never going to work properly, or as you expect, in practice, because those large
By
John Woodgate
·
#159795
·
|
Re: AC Analysis - show Mag in dBuV versus Freuqncy
Hello, Ray ? ? I know of no? other way then to just right click on the traces label and include a conversion equation in the expression box. Others may know better. Yahoo Mail: Search, Organize,
By
Richard Andrews
·
#159794
·
|
AC Analysis - show Mag in dBuV versus Freuqncy
Hi LTspice Group, I have simulated a filter which is a cascaded of two LC low-pass filters. I get the Bode plot Magnitude in dB versus frequency and phase versus frequency. However, I need to display
By
Ray. Koo
·
#159793
·
|
Re: Lateral PNP In Model of 741 Internal Architecture
subst741.zip @ Fil/g/LTspice/files/Temp?p=created,,,20,2,0,0es is my best guess of the device . . . so far
By
Rene
·
#159792
·
|
Re: Lateral PNP In Model of 741 Internal Architecture
off topic https://www.tinytransistors.net/2020/11/03/the-741-op-amp/ https://www.tinytransistors.net/2021/01/06/the-741-op-amp-part-2/ https://www.tinytransistors.net/2021/02/03/the-741-op-amp-part-3/
By
Rene
·
#159791
·
|
Re: mosfet parameter setting of imported spice model
john23, In other words, your PMOS or PMOS4 schematic symbol is telling LTspice to do this: * I want a P-channel MOSFET here, * and I want it to be a type "CMOSP", as defined in that .MODEL statement,
By
Andy I
·
#159790
·
|
Re: mosfet parameter setting of imported spice model
That is how SPICE works. The .MODEL does not (or might not) have values for W and L.? But the instance of each transistor does have W and L values, which are applied to that instance of each MOSFET.
By
Andy I
·
#159789
·
|
Re: mosfet parameter setting of imported spice model
Hello Andy, I notices that the spice model I imported doesnt have ant W,L parameters in it. So when we define ?l=1u w=100n? ?parameters in the PMOS4 model,how does it know to connect the inported
By
john23
·
#159788
·
|
Re: Overriding a library diode's internal parameter(s)
Probably the easiest way is to use AKO. Use a unique name for your experimental diode model so it does not conflict with existing models names in the LTspice native diode library or your own user
By
eetech00
·
#159787
·
|
Re: Overriding a library diode's internal parameter(s)
I'd love to get back to this when I am not visiting Mom. Yahoo Mail: Search, Organize, Conquer On Fri, Apr 11, 2025 at 7:02 PM, Bell, Dave via groups.io<Dave.Bell@...> wrote:
By
Richard Andrews
·
#159786
·
|
Re: Overriding a library diode's internal parameter(s)
This surprised me when I unintentionally did it: ¡°N" when used in the diode element line sets the number of effective diodes connected in series. N=5 means this one diode in your schematic
By
Bell, Dave
·
#159785
·
|
Re: mosfet parameter setting of imported spice model
Wow.? I watched a few minutes of that video.? A few minutes was all I could tolerate.? Incredibly bad. I often say that you should not rely on watching videos to learn anything about electronics or
By
Andy I
·
#159784
·
|
Re: Overriding a library diode's internal parameter(s)
Your schematic has two things wrong.? This is *not* how it should be done. * You defined a diode model with a name that already exists.? MUR460 is in standard.dio, in LTspice's diode library.?
By
Andy I
·
#159783
·
Edited
|
Re: mosfet parameter setting of imported spice model
I uploaded "pmos_vds_with_Width.asc" which shows how to do this. Andy
By
Andy I
·
#159781
·
|
Re: mosfet parameter setting of imported spice model
Also, don't forget to name the MOSFET with the right model name.? On your schematic, you have defined a P-channel MOSFET model with the name "CMOSP": Therefore, the name next to the PMOS symbol (M2)
By
Andy I
·
#159780
·
|
Re: mosfet parameter setting of imported spice model
I did not yet look at the video.? So my answer does not directly refer to your question about the video. But there are two ways to set the Width (and Length) of a MOSFET: * Use the PMOS4 symbol.?
By
Andy I
·
#159779
·
|
Re: Overriding a library diode's internal parameter(s)
This is how it should be done, but I got a warning in the log file using version 4. /g/LTspice/files/Temp/AD_PV_Sim%20Rich-04-11-2025.zip
By
Richard Andrews
·
#159778
·
|
mosfet parameter setting of imported spice model
Hello,I have imported the tsmc Pdk 180nm shown bellow in the ltspice model. however in the 1:01:06 moment of the video they somehow managed in the menu to get the channel width of the mosfet. Where I
By
john23
·
#159777
·
|
Re: NCS2001
In case I did not state this adequately, the concern is that you would literally fry U3.? Its input pin is being pulled well beyond U3's VEE supply voltage. It does not appear to affect the
By
Andy I
·
#159776
·
|
Re: NCS2001
Now the OP tells us that the.ASC is just a fragment of something bigger, so loose ends are to be expected.
By
John Woodgate
·
#159775
·
|