24 Threads found on edaboard.com: Pspice Model Bjt
I want to make my own NMOS and PMOS and NPN and PNP libraries in Orcad 9 so that I can use the schematic editor and build any circuit based on these models and do "neat" step by step schematic entry followed by simulation.
I have following data for a NMOS and PMOS
(taken from page 37 from Razavi)
LEVEL 1 SPIC
Analog Circuit Design :: 27.06.2004 05:38 :: v_naren :: Replies: 0 :: Views: 1485
I need to use certain transistor PC3388, and it has no datasheet on A.D.S, but i have its datasheet.. Can't I write its model for myself?
In general, how can I write a pspice model for A.D.S.? Is A.D.S. SPICE based simulator? Or Spectre? Or what? and how can i write my own model?
Thanks in advance,
Analog Circuit Design :: 25.04.2006 16:25 :: ahmad_abdulghany :: Replies: 0 :: Views: 549
in ads there is a feature called netlist converter , it convert the model to the pspice model , to ADS model, and then include the model in the schematic
Software Problems, Hints and Reviews :: 19.04.2008 16:25 :: khouly :: Replies: 1 :: Views: 1846
in pspice model editor extract parameter options is freeze how to activate that one?
Analog Circuit Design :: 14.12.2009 21:13 :: ra124 :: Replies: 2 :: Views: 517
I am looking for a help in modelling the transistor 2N2369A throught its SPICE model found in the internet.
Basically I need to bias the transistor and see the behavior, but once importing it through Microwave Office (Project->Add netlist->Import netlist->Import file as pspice netlist files (*.CIR)) I noticed that the device (...)
RF, Microwave, Antennas and Optics :: 04.10.2010 09:42 :: enrico :: Replies: 3 :: Views: 1962
i want to study bandgap reference source.But if i use 0.5um CMOS processing how can i set bjt parameter in HSPICE or pspice?Is there any website just like MOSIS providing BICMOS fabrication parameter for HSPICE or pspice?
Analog IC Design and Layout :: 01.12.2004 21:19 :: xz781122 :: Replies: 3 :: Views: 1136
Because the bipolar device is not a standard device from foundry , it is a special device from my own . I 'd like to make the spice model so that it can be simulated in Hspice or pspice. I heard IC-CAP can do this job. Any one know where to get a copy of this tool ?
Analog IC Design and Layout :: 29.12.2004 21:51 :: xwcwc1234 :: Replies: 14 :: Views: 8780
I want to model a real bjt IC Vs Vce Characteristics using student version pspice.
I have used a pspice bjt model and tried to model a real bjt using .model parameters but it is not matching the real bjt characterisitcs. (...)
Analog Circuit Design :: 27.07.2005 15:12 :: viren :: Replies: 9 :: Views: 10120
Since pspice does not like open terminals, put a 1G ohm resistor from collector to ground.
Analog Circuit Design :: 05.08.2005 15:02 :: flatulent :: Replies: 21 :: Views: 5657
Vbdg = Vgo + Vto(γ-×)
and Vgo=1.205 , γ=3.2 ,×=1
×=1 (in your circuit, this parameter is 1, as your VBDG setup PNP is biased by PTAT current)
γ=3.2 (look inside pspice model for XTI)
Vgo (pspice uses EG, the fictitious Vbe at 0K, not quite measurable in practice)
if u have done an almost ideal job on your (...)
Analog Circuit Design :: 05.01.2007 04:04 :: lastdance :: Replies: 8 :: Views: 1173
the orcad software has models embedded for bjt and cmos
also you can define models in pspice or hspice by yourself
Electronic Elementary Questions :: 14.03.2007 03:05 :: eelinker :: Replies: 7 :: Views: 1171
Unlike the MOS transistor, I am curious about how to configure this bjt transistor. In the property attribute of this device, area is the parameter set by user. What this area mean? In datasheet, I cannot find it, only the parameter like IS , VAF , BF, etc. is known. How can I custom multi QBreakP instances with the different Is, VAF, BF, and etc&
Analog Circuit Design :: 07.05.2009 02:21 :: easykevin :: Replies: 0 :: Views: 792
Unlike the MOS transistor, I am curious about how to configure this bjt transistor. In the property attribute of this device, area is the parameter set by user. What this area mean? In datasheet, I cannot find it, only the parameter like IS , VAF , BF, etc. is known. How can I custom multi QBreakP instances with the different Is, VAF, BF, and etc
Analog IC Design and Layout :: 07.05.2009 12:09 :: easykevin :: Replies: 0 :: Views: 1968
I am trying to model an NPN Transistor in pspice using a .model file, but am having trouble converting transistor characteristics into characteristics you enter into the model text file. This is the first time I've tried a .model file and any help would be greatly appreciated.
PCB Routing Schematic Layout software and Simulation :: 08.10.2011 04:56 :: juliown1028 :: Replies: 1 :: Views: 1049
what should be the modeling parameters for bjt to make it run in saturation. please help v urgent.
Power Electronics :: 12.05.2012 22:10 :: khaleelrehman :: Replies: 4 :: Views: 812
Use the parts from libraries present under ../tools/capture/library/pspice folder.
Electromagnetic Design and Simulation :: 12.08.2012 08:21 :: atripathi :: Replies: 2 :: Views: 514
pspice has a number of industry standard optocoupler models in OPTO.lib. It's not obvious however, if this (or any other library) represents all intended parameters, e.g. dynamical behaviour. Before searching for models, you should have an idea which parameters should be modelled. In some cases, it might be more promising to (...)
Analog Circuit Design :: 27.06.2013 06:59 :: FvM :: Replies: 1 :: Views: 513
My semester project is design of low noise amplifier 5-100Mhz with following characteristics
Input signal = 70 nano volts (-130.9dBm)
output signal = 2.2milli volts (-40dBm)
using NEC 2SC2570A bjt transistor. The cable amplifier available in market uses same transistor and input is -65dBm. I have to improve upon it using
RF, Microwave, Antennas and Optics :: 18.10.2006 13:18 :: syedmoin :: Replies: 2 :: Views: 701
Instead of importing as pspice netlist...
Use the following Gbjt elemet on schematic
Elements -> Nonlinear -> bjt -> Gummel-Poon 3-Terminal bjt: Gbjt3
and then enter manually all the parameters (carefull about default units used in the parameter page....
RF, Microwave, Antennas and Optics :: 05.07.2007 03:09 :: Manjunatha_hv :: Replies: 5 :: Views: 1149
Can't simulate it by pspice ?
Electronic Elementary Questions :: 07.08.2007 13:12 :: andre_teprom :: Replies: 7 :: Views: 1160
For circuit simulations I use pspice.
I have checked the influence of the Miller capacitance as follows.
1.) To be sure that the capacitance between base and collector solely determines the frequency behaviour of a transistor stage I have increased the value of CjC from 7pF to 700 pF (bjt 2N2222). This was possible because pspice allows (...)
Analog Circuit Design :: 16.05.2008 14:09 :: LvW :: Replies: 5 :: Views: 1037
Using ADS (Main) goto file import -> Browse to the file -> click more options -> select pspice and other appropriate options -> Hit OK.
When the design appears. In the design window goto file design parameters, then you can select a symbol to use and what library the device will appear in.
RF, Microwave, Antennas and Optics :: 25.05.2009 11:11 :: darcyrandall2004 :: Replies: 3 :: Views: 2028
just change this file extension as *.cir (pspice format) & then import it as pspice netlist it works fine....
If still have issues, append the file here...
Electronic Elementary Questions :: 16.06.2011 03:56 :: Manjunatha_hv :: Replies: 3 :: Views: 440
Seems like you are referring to the gummel-poon transistor model? What's your point in reproducing the temperature equations? For hand calculations, I've been satisfied with the well known -1.9 mV/K Vbe temperature dependency since I'm doing electronics.
But I noticed, that most literature referencing these equations has a detailed explanation,
Analog Circuit Design :: 10.12.2011 04:36 :: FvM :: Replies: 2 :: Views: 405