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Jeffrey Walling
Jeffrey Walling
Jeffrey Walling
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On line lecture notes for ECE 3110 can be found here: onedrive.live.com/view.aspx?resid=558C337B80B21331!8895&app=OneNote&authkey=!ADQGk3P2egRi5fI
Importing IP from GDS
3:03
Год назад
Creating an Ideal Transformer
9:57
Год назад
Inverter Design
14:09
Год назад
Setup 22nm PDK at Virginia Tech
6:26
Год назад
ECE 3204 Lecture 19D - RHP Zero
5:00
Год назад
ECE 3204 Lecture 19C - LHP Zero
4:35
Год назад
Комментарии
@pablomarco5118
@pablomarco5118 23 дня назад
Many thanks prof!
@pablomarco5118
@pablomarco5118 23 дня назад
Thanks prof
@dongfanghan
@dongfanghan Месяц назад
👍
@VK2LNA
@VK2LNA Месяц назад
Just want to say your videos are fantastic and have really cleared up a lot. Thank you so much for the effort you've put into this.
@kashmirparadise8625
@kashmirparadise8625 2 месяца назад
I'm having systemverilog code and inside it I have instantiated sub blocks which are also written in system verilog but when I try to use config view, it shows view to use only (which i would keep as external HDL view) for top level and not for the sublocks which are instantiated in the blocks of top level. What should I do so that I can get sub blocks there as well so that I can keep it's view to use as external HDL view
@nagarajudeevi
@nagarajudeevi 2 месяца назад
Thank you
@SAhellenLily_22
@SAhellenLily_22 2 месяца назад
Thank you Sir😊 vy=Gm1*vx*(1/sc)=Gm1*(vx/sc)...(1) Therefoe ix=-io=Gm2*(-vy),ix=Gm2vy..(2) Substituting equation (1) into (2) ix=Gm2*Gm1*(vx/sc),vx/ix=sc/Gm1Gm2 So sc/Gm1Gm2=sL L=c/Gm1*Gm2....answer
@AGuyWhoWantAUsername
@AGuyWhoWantAUsername 3 месяца назад
Anyone here encountering issues where when you save the waveform as image, Cadence will crash?
@MobiusHorizons
@MobiusHorizons 3 месяца назад
Thanks for making this! Very clear, understandable and concise. I have been struggling to learn these concepts and this really made it click.
@HarryWoo
@HarryWoo 3 месяца назад
When tuner provides the various impedance to PA output, Pout is measured at 50ohm ( for example, Spectrum analyzer). How we know insertion loss from tuner input to 50ohm Pout measurement point under a specific tuner input impedance in order to calibrate out that insertion loss ?
@ParminderKaur-zm4kw
@ParminderKaur-zm4kw 4 месяца назад
Hey Mr jeffrey ,Can you please tell which software did you use to record the content ?? The video is very nicely made
@troomshroom7682
@troomshroom7682 4 месяца назад
First
@conglevan63
@conglevan63 5 месяцев назад
great
@hardikjain-brb
@hardikjain-brb 5 месяцев назад
angle H starts at -180
@wallingphd
@wallingphd 5 месяцев назад
That would imply that the transfer function were inverting (e.g., multiplied by -1). It is not, so the angle does not start at -180.
@hardikjain-brb
@hardikjain-brb 5 месяцев назад
As mentioned in the video H jw is taken as jw-wz when omega tends to zero ; the phasor approaches -wz so the phase is -180 isn't it?
@wallingphd
@wallingphd 5 месяцев назад
@@hardikjain-brb The angle is equal to atan (-w/wz). atan of 0 is 0.
@hardikjain-brb
@hardikjain-brb 5 месяцев назад
@@wallingphd it approaches from the negative side of 0 arc tan(0-)=180
@wallingphd
@wallingphd 5 месяцев назад
@@hardikjain-brb atan(1) = 45, atan(0.5) = 26, atan(0) = 0, atan(-0.5) = -26, atan(-1) = -45). atan is bound between -90 deg and 90 deg for input from -inf to inf.
@yabiliao8779
@yabiliao8779 5 месяцев назад
thanks!
@user-bc8qw8my6p
@user-bc8qw8my6p 6 месяцев назад
could specify which cells are calculated or and which are given values. i'm also trying to make a link budget for a terrestrial link.
@todayiwill1361
@todayiwill1361 6 месяцев назад
Thanks a lot ! I’m a master thesis student and you help me a lot
@becermis
@becermis 6 месяцев назад
Great content. Thanks!
@hardikjain-brb
@hardikjain-brb 7 месяцев назад
if current matching is a concern then Q6 Q8 both must have Vce=Veb
@hardikjain-brb
@hardikjain-brb 7 месяцев назад
IB0 should also be added giving N+1 term
@hardikjain-brb
@hardikjain-brb 7 месяцев назад
Ok so the SCTC is for big capacitances llike coupling or bypass and OCTC is for device capacitances.
@hardikjain-brb
@hardikjain-brb 7 месяцев назад
Bode plots nice
@hardikjain-brb
@hardikjain-brb 7 месяцев назад
Including ro for last one would have Rc||Rl parallel with r0
@GiorgiAptsiauriX
@GiorgiAptsiauriX 7 месяцев назад
Hi, could you please upload or share privately EMX simulation of the transformer? or anything that details out EMX simulation? I am also using 22FDX-PLUS.
@balrampillai5314
@balrampillai5314 7 месяцев назад
Incredibly useful and informative; thank you so much for putting out this tutorial!
@jimmysun2968
@jimmysun2968 8 месяцев назад
Is Rz Cc-CL/Cc*1/GMII actually?
@digambarbhole9467
@digambarbhole9467 8 месяцев назад
sir, I have a module that I have created with the help of Mosfet but now I want to plot the resistance of my entire module from the input port but here I am using the sp parameter method to get this plot while using the sp parameter i am applying pulse input as my module resistance changes with the number of pulses applied to it so I want to plot the real-time resistance of my module as it changes with time as it is a function of the number of pulses applied so with sp parameter I am unable to get this plot can you suggest any method where I could plot this
@ismailassou6942
@ismailassou6942 8 месяцев назад
Sir, do you have license manager for ADS 2024?
@wii_
@wii_ 8 месяцев назад
ty
@farshadsedarati6759
@farshadsedarati6759 9 месяцев назад
Could you please explain why u use Ps for both loss in inductor and input power?
@user-hl1qf3rk1i
@user-hl1qf3rk1i 10 месяцев назад
Hi Professor, many thanks for your video! I am wondering do we need to change the differential port impedance to 100ohm and common mode port impedance to 25ohm for this evaluation? In this way, we can get correlated results as the 4 port evaluation using the conventional equation such as SDD11=0.5*(S11+S33-S13-S31). Thanks!
@abheetl9743
@abheetl9743 10 месяцев назад
Excellent video, very precise and concise. Thanks!
@CircuitShepherd
@CircuitShepherd 11 месяцев назад
Nice 👍😉
@emiliomartineziii2980
@emiliomartineziii2980 11 месяцев назад
It's always a relief when someone who can speak english makes a video 🙏
@user-hx7pq4lx2j
@user-hx7pq4lx2j 11 месяцев назад
looking forward your update too ㅠㅠ
@user-zr9oj2yz4e
@user-zr9oj2yz4e 11 месяцев назад
Hi Professor. Thanks for your videos. They are really helpful and advanced. Could you please send the link of the video about transformer layout and EMX simulation? It would be appreciable.
@M.Taa11
@M.Taa11 11 месяцев назад
this helped me very well in calculating the input capacitance to make accurate design of previous stage thank you very much.
@user-ws2hb9sb3b
@user-ws2hb9sb3b Год назад
Thank you very much for this lecture. If you don't mind, can you tell me how to load and source the 2nd and 3rd harmonics?
@kaptain7296
@kaptain7296 Год назад
yo this was helpful thanks alot, keep posting.
@ryanfeng
@ryanfeng Год назад
looking forward your update
@ceyda7462
@ceyda7462 Год назад
I appreciate you recommending these valuable video; I will definitely find them handy. WASK is so good optimization tool I think, I can suggest.
@IRON770225
@IRON770225 Год назад
About the Opim Goal, you set Pin as sweep variable at single frequency. How to set Pin and frequency as sweep variables at the same time??
@karamany9870
@karamany9870 Год назад
in 4:19, it should be Vov^2 in Id1 expression, right?
@baesickee5036
@baesickee5036 Год назад
Thank you. It helped a lot.
@marioselia5453
@marioselia5453 Год назад
Dear Professor I have a question. Why is drain current zero when PMOS in ON? Are we talking about NMOS drain current?
@kirin9987
@kirin9987 Год назад
Thank you for your kind explanation. I wonder why the dc simulation result is so different from the s parameter sim. Can you give me your opinion?
@wallingphd
@wallingphd Год назад
The DC simulation is just based on the device model, but does not include estimates of metal capacitance due to layout parasitics. You can add a few more terms (e.g., Coverlap, Cjs, etc.) to get a closer approximation, but the safest bet is to just use the SP.
@kirin9987
@kirin9987 Год назад
@@wallingphd thank you!
@marioselia5453
@marioselia5453 Год назад
In the above relationship, even for Rsw = 0, P_Rsw is non zero (should of been)
@marioselia5453
@marioselia5453 Год назад
Shouldn't P_Rss be (2*VDD^2 / π^2) * ( Rsw / [Rsw+Ropt]^2 )?
@ag_rfdesigner
@ag_rfdesigner Год назад
Hello professor, would it be possible to share a sample matlab code we can start working with.
@mensh__
@mensh__ Год назад
I think the xval function with the psp sim would return -1 to 1 GHz. So, you should add the pss freq to that.
@wallingphd
@wallingphd Год назад
The susceptance is linearly increasing with frequency, and the value in the plot is the correct value at the offset. Hence, we should not add the pss frequency to it. You can verify by setting the PSP frequency range to absolute and sweeping from frf +/- offset (e.g., 4.6GHz to 6.6GHz in this case). The result will be the same, albeit there will not be a divide by 0 in the middle of the range.