food
Churrasqueira Fogao
MercadoLivre Search: Churrasqueira Fogao
What is interesting about this is that you can fry beef on a gas stove top and have minimal smoke.
Purchased one on MercadoLivre – Tracking number = PI346603867BR – delivered
Other orders
- Keyboard order #1 RB914412173HK – delivered
- Keyboard order #2 RB914826113HK – delivered
- Power Strip DM508996506BR – delivered
- V1- no tracking – economy international
- USB 64GB Pen drive – no tracking – economy international – delivered
- Qty=2 laptop sleeves – delivered
- V2 – no tracking
- Whistles – DM519371863BR – delivered
- Tahine – DM527608345BR – delivered
- Toner cartridge for Lexmark E120 Printer DM546071055BR – delivered
- Qty=4 USB Flash Memorys
Poetry
Robert Service Life and Poetry
The poem: The Men that Don't Fit in made me curious about Robert Service the author.
Research Links
On a comical note it is interesting how the Project Gutenberg logo and the Greek Golden Dawn symbol are similar:
Book NAZI's!
Design Tools
Setting LTspice up for use with Electric
Research Links
- Open source IC design flow
- Using MOSIS models with LTSPICE – you will have to change the Level = 49 to Level = 8 for the BSIM3 models you download from MOSIS.
- MOSIS Test Data
- Google Search: LTSPICE MOSIS
- Setting LTspice up for use with Electric
- Electric HomePage
- Electric VLSI Tutorial
LTspice is provided courtesy of Linear Technology, Inc. and authored by Mike Engelhardt. Possible contact for topo.
Engineering
Extraction of MOSFET Parameters Lab using 4007 Array
Lab Document: Extraction of MOSFET Parameters using 4007 Array
My PDF Solution – Warning Will Robinson: I never get 100% correct!
The following two measurements are where the MOSFET is in saturation and use the 8if method to nd ISpecific. In this
case because we are looking into the MOSFET source circuit we do not have to worry about slope factor n: Simply go to the
point where gms/ID=20 and read o the current the divide by 8 to arrive at the speci c current.
Vgate = 2:0 VD = 5 : Ispecific = 0:735 uAmp
Vgate = 1:7 Nominal Vt VD = 5 : ISpecific = 0:92 uAmp
The triode region determination of speci c current is a little more complicated. I used Vds=15mVolts which results in if = 3
and ir = 2 which is convenient in the last part of the calculation of speci c current.
Electronics
LTspice Modeling a transformer
I had some issues getting a simple transformer model to run under LTSPICE.
| Archive: Ideal-Transformer.asc Uses only standard LTSPICE parts. Should work straight out of the box. |
Research Links
Random Finds
- University of Evansville LTSpice IV Library and Tutorials
- SPICE-Simulation using LTspice IV
- SPICE Circuit handbook – Chapter 01 – spice-circuit-handbook-steven-sandler Originally found here
- SPICE Circuit handbook – Chapter 02
- SPICE Circuit handbook – Chapter 03
- SPICE Circuit handbook – Chapter 04
- SPICE Circuit handbook – Chapter 05
- SPICE Circuit handbook – Chapter 06
- SPICE Circuit handbook – Chapter 07
- SPICE Circuit handbook – Chapter 08
- SPICE Circuit handbook – Chapter 09
- SPICE Circuit handbook – Chapter 10
Electronics
MOSFET Simulation Guide Self Defined MOSFET Model
I have wanted to use the SPICE MOSFET model more closely for while and found this guide: MOSFET Simulation Guide
With it I hope to be able to finally crack the problem of changing the threshold voltage. Up till now when I have gone into the text of the model files for MOSFETs and altered Vth0 I have not seen any material change in the threshold voltage. Obviously I am doing something wrong or do not understand how the SPICE simulator is going about its business.
Research Links
- PDF: MOSFET Simulation Guide – Self Defined MOSFET
- SPICE MOSFET model parameters
- A 180 Nanometer MOSFET Model – Using TSMC Transistor Models from MOSIS in LT Spice
- LTspice Tutorial explains how to import third party models into LTspice
- Creating LTSPICE MOSFET Models
Partial solution to change threshold voltage:
|
Archive: This LTSPICE archive has model files that are used by using an nmos4 and pmos4 symbol. Thus there is no subcircuit statements used in the library file. NOTE: With this version when I vary the threshold voltages I see the expected resultant change in the analysis output. 180nm analysis and model files The archive file should work straight out of the box after extraction. Make a directory and extract to it. It has the library file, symbols and an LTSPICE test circuit. |
Notes
- The unaltered diode connected voltages with 10uAmps agrees with both methodologies.