1000 Threads found on edaboard.com: Bh Curve
Doubts on determining the permeability from BH curve. The formula of permeability is
? = B/H
... which is NOT given by the SLOPE of BH curve, right?
I attached your B/H picture slightly edited with showing the CHANGE in H and the corresponding CHANGE in B, so using my numbers in the picture the permeability o
Electronic Elementary Questions :: 11-09-2006 09:30 :: unkarc :: Replies: 6 :: Views: 5603
I think that BH curve is usefull when your are going to work near to core saturation.
Normally, that curve, or its characteristic points, are given for high power cores.
Electronic Elementary Questions :: 02-01-2007 07:20 :: angelote :: Replies: 7 :: Views: 1669
What is the relaationship between the BH curve and the curve between Induced EMF and Field current.
Electronic Elementary Questions :: 07-02-2008 09:16 :: avi_e- :: Replies: 0 :: Views: 517
I just one simple question: when we add a BH-curve for a ferrite material in HFSS, the H in the BH-curve file should be the internal H values ?or the external H values?
Electromagnetic Design and Simulation :: 03-31-2014 04:36 :: xboby :: Replies: 0 :: Views: 250
Can anybody help me to plot a dynamic hysteresis curve either PSPICE or Matlab/simulink.Some of the parameters keep on changing ( I am using jiles atherton model parameters in an iterative way, so i need a bh curve which is dynamic)
It would be great if you reply soon.
Analog Circuit Design :: 03-08-2010 17:08 :: kkarunya :: Replies: 0 :: Views: 947
Hello, I am trying to compare BH curves on the 43 material and the 3R1 mterial.
In the piscture the 43 curve is shown on the left and the 3R1 on the right.
I am a bit confused of the graph units, could you notify me which one has a more square BH curve that sharply bends at the saturation points?
A rough comparison of the bending (...)
Electronic Elementary Questions :: 10-30-2013 05:29 :: neazoi :: Replies: 0 :: Views: 107
You have to watch out for the DC current rating. When filtering DC you need to look for the series resistance which will cause heating and voltage drop. You also have to look for the reduction of the inductance (when there is some core material other than air or an insulating support) from being biased of the center of the BH curve by the DC curr
RF, Microwave, Antennas and Optics :: 05-30-2006 19:47 :: flatulent :: Replies: 6 :: Views: 1623
I did a test on a BH circuit (Figure 1) today. The number of turn of the excitation coil was N1, whilst the number of turn of the search coil was N2. In the experiment TTi TG550 Function Generator ( ) was used as Vin. When N1 = 100 turns, the excitation current waveform looked very FUNNY (hea
Electronic Elementary Questions :: 08-22-2007 13:03 :: powersys :: Replies: 2 :: Views: 1172
If you are only interested in the amount of flux in the core (most of it will come out at the end, where you need it), you can do a measurement with a 'pick-up' winding. Just put some extra turns across the solenoid, and measure the voltage generated on it. The input can be any current waveform, but probably a sinus is easiest.
Measure Iin and
Power Electronics :: 01-13-2010 14:30 :: svhb :: Replies: 6 :: Views: 3140
how can i use 555-timer as function generator..what suitable circuit for this title
Hobby Circuits and Small Projects Problems :: 12-15-2010 10:10 :: syiera :: Replies: 0 :: Views: 1744
You can easily accomplish this in PSpice. In PSpice you can model core, to support BH curve non linearity, saturation, effect of air gap etc.
Software Problems, Hints and Reviews :: 12-07-2011 06:30 :: atripathi :: Replies: 9 :: Views: 2228
I am working to model a flux gate (it is nothing but inductor with iron core, whoch shows differrent behaviour at differrent external magnatic field).
What I am trying to achieve is to realise a mathmatical model which can take external magantic field as input and use BH curve to change the behaviour of flux gate. Any help would be highily a
Electromagnetic Design and Simulation :: 11-24-2011 01:49 :: umesh49 :: Replies: 0 :: Views: 533
As a common property, tape-wound cores have high saturation flux, e.g. factor 4 compared to ferrite. But there's a number of different core materials specialized for different applications, e.g. power transformers, common mode chokes, magnetic amplifiers and current transformers. You have to analyze the circuit to find out what t
Electronic Elementary Questions :: 10-17-2013 02:39 :: neazoi :: Replies: 5 :: Views: 278
Hello, A nice measurement is the low frequency BH curve. The basic setup is relatively simple, but you need some math to convert the measured properties back towards magnetic field properties.
You can find an example measurement setup at:
If your Digital Oscilloscope has int
Electromagnetic Design and Simulation :: 12-16-2013 08:03 :: WimRFP :: Replies: 5 :: Views: 544
for design a voltage mode control compensation network of smps I need calculate forward gain (G) in 1+GH equation that H is compensation network Gain.
that for forward gain we have : G = Vin * (Ns/Np) * Gm
Ns/Np= trans ratio
Gm= modulator gain
suppose a half bridge smps designed to work for 175 to 280 Volt AC:
Power Electronics :: 07-04-2014 07:01 :: zereshki :: Replies: 2 :: Views: 282
Not really. Peak to peak swing would impact the loss. Also swing would impact the area of BH loop. Also there would be some eddy current loss, but it's contribution would be much less. Also it is true that area of BH loop represent the Hysteresis loss
The area inside the B-H curve represents lost power. It takes energy to move around the B-H c
Power Electronics :: 11-23-2011 07:43 :: atripathi :: Replies: 3 :: Views: 464
Anyone knows a FPGA, microprocessor, DSP, ... implementation of an elliptic curve cripto system?
Professional Hardware and Electronics Design :: 03-13-2003 19:24 :: System.out :: Replies: 0 :: Views: 731
I'm looking for a good V/I curve Tracer project or schematic to build.
Can someone help me ???
Thanks in advance.
Hobby Circuits and Small Projects Problems :: 01-25-2004 05:26 :: jackrs :: Replies: 6 :: Views: 6220
I want to know if I can draw exponential function curve in the CST curve creation , because I want to know how I can get the planar metal with exponential function bounding in the vivaldi antenna simulation.who can tell me . thanks a lot !
Electromagnetic Design and Simulation :: 04-22-2004 10:05 :: xxgcatz :: Replies: 1 :: Views: 2484
Since I have a varactor with two terminals ,Gate and "Source+Drain",how to get varactor C-V curve in CDS?pls be more specific
Analog Circuit Design :: 09-15-2004 23:46 :: pigkiller :: Replies: 1 :: Views: 1767
How to draw a sinus curve in CST microwave studio? May someone please help
Electromagnetic Design and Simulation :: 09-26-2004 12:02 :: irfan1 :: Replies: 2 :: Views: 1662
What will be the transfer curve of an inverter if i change Vdd and Vss?
Electronic Elementary Questions :: 10-09-2004 06:20 :: carrot :: Replies: 9 :: Views: 1240
How can we calculate the arc length of any curve for example of sine,cosine or any random curve?
Mathematics and Physics :: 10-22-2004 06:43 :: bilalkadri :: Replies: 2 :: Views: 1545
who can give me BJT & MOS IV curve sweep
( I remember hspice have demo file ）
I need it for characteresize some process library file ..
and I hope can use "nest sweep"
Q1 0 nb ne pnp
ib nb 0 ib1
ve ne 0 ve1
.dc ve 0 3.3 0.1 sweep ib1 dec -0.1u -10u
but I can not probe out IV curve , should I use Ve ->
Electronic Elementary Questions :: 10-27-2004 07:17 :: andy2000a :: Replies: 1 :: Views: 2009
Does anyone know if any transistor exists that displays I-V curve symmetry - ie, for a given gate bias a certain positive drain voltage results in a positive drain current, and the same drain voltage but negative results in the same negative drain current. That is, the positive quadrant of the I-V curve is reflected in the negative quadrant.
RF, Microwave, Antennas and Optics :: 11-12-2004 15:13 :: ees :: Replies: 1 :: Views: 1028
how to draw a sin() function curve in HFSS8 or HFSS9? please help me,thanks
Electromagnetic Design and Simulation :: 11-22-2004 23:38 :: xialei :: Replies: 3 :: Views: 1864
what are the direction cosines of a plane and that of a curve.
Mathematics and Physics :: 12-24-2004 23:15 :: DrDolittle :: Replies: 2 :: Views: 1883
Find the index of income concentration for Lorenz curve given by the equation:
Mathematics and Physics :: 04-10-2005 09:41 :: danesh :: Replies: 0 :: Views: 615
My question is on HFSS 9.
Who knows how to draw a point by point curve if I have a table of values (x, y)
I know how to do it in HFSS 8 using the Macro Editor. But I need to do it in HFSS 9.
Another question: is it possible to assign such line using formula y(x)=...
I haven't found such option.
Best Regards, Uninvited
Software Problems, Hints and Reviews :: 04-14-2005 11:28 :: Uninvited :: Replies: 0 :: Views: 698
Huntron - Any curve Tracers - I need the Huntron or any good and professioal or semi pro curve tracer schema or service manual.
Service Manuals, Requests, Repair Tips :: 05-01-2005 08:58 :: ta2ctp :: Replies: 0 :: Views: 1504
I am searching for a function to fit Gaussian-like curve(the curve is like
the Gaussian probability density function), and get the mean and sigma? Any suggestion will be appreciated! BTW, I use Matlab and C.
Electronic Elementary Questions :: 05-16-2005 11:43 :: davyzhu :: Replies: 2 :: Views: 2882
how to get vco voltage-frequency transfer curve by using ADS?
i used to do the simulation using Hspice, sweep the control
voltage and save the freq (by using .meas function), and handle the data by
i want to know how to do that in ADS, thanks!
RF, Microwave, Antennas and Optics :: 05-19-2005 06:40 :: gargoyle :: Replies: 1 :: Views: 1058
I have hit a brick wall while working with the least square curve fitting function "lsqcurvefit". I am getting an error which I dont have a clue what it means. The error reads "Function value and YDATA sizes are incommensurate".
Does anyone have some idea on how to avoid this. I am in desperate need of some help on curve (...)
Software Problems, Hints and Reviews :: 05-31-2005 13:21 :: kash787 :: Replies: 1 :: Views: 2842
I need to model the BJT again now to get the IB vs Vbe curve which I got by experimenting with the real BJT using a curve tracer. Now when i used the curve tracer i had kept the collector open. I gave a step current to Ib for 200mA . So can anybody have any idea how i can setup the circuit in pspice schematics for that.
Analog Circuit Design :: 08-05-2005 14:34 :: viren :: Replies: 21 :: Views: 5999
could you tell me how to simulate tranfer curve of pipeline ADC single stage
Just like that below
Analog Circuit Design :: 08-08-2005 12:30 :: tedybear :: Replies: 4 :: Views: 1151
How to draw the PSRR curve for a opamp in COSMOSSCOPE?
When use hspice ,the output vdb(out) is 1/PSRR,
so how can i get the psrr?
Analog IC Design and Layout :: 09-08-2005 21:12 :: holddreams :: Replies: 4 :: Views: 877
any one have data or curve for medtronic ph sensor needed.
i filling this sensor is nonlinear?
Analog Circuit Design :: 09-09-2005 05:33 :: carrier :: Replies: 0 :: Views: 514
i had plotted two ber curve for different subcarriers......
1) the ber curve move to left when i increase the no. of subcarriers.
2) the ber curve move to right when i increase the no. of subcarriers.
i just confuse....which one is the correct one? increasing in no. of subcarrier would definitely causing ICI to is that causing
Digital Signal Processing :: 09-12-2005 09:33 :: bleach :: Replies: 1 :: Views: 1143
hey, guys. I'm a newbie in filter design. I have got a problem.
Is anyone know how to obtain the curve between resonator spacing and coupling coefficient K by using HFSS.
RF, Microwave, Antennas and Optics :: 11-24-2005 01:26 :: sheng411 :: Replies: 1 :: Views: 1085
now i am designing a opamp with chopper stablization,but i donot know how to simulation the noise curve with the hspice, so i cannot decide the chopper frequency,is anybody can tell me?thanks!
Analog Circuit Design :: 01-19-2006 04:33 :: beargebinjie :: Replies: 4 :: Views: 785
I'm trying to order some extra screws for a project I'm working on. In the manual, they are called "BT3*10mm BH screw." However, I am not able to find the right place to buy these from. I searched for anything BT3 but could not find the correct match. Does anyone know what the part number means or where I can find the right screw to match this
Hobby Circuits and Small Projects Problems :: 02-18-2006 01:33 :: jayc :: Replies: 1 :: Views: 803
Anyone could explain to myself why should Draw Frequency Response curve.
Hope to hear from you all soon
Electronic Elementary Questions :: 02-18-2006 10:48 :: siekiam :: Replies: 9 :: Views: 1238
I'm building VI-curve tracer, using PIC16f877 and DAC mcp4822 from microchip
and interfaced to PC through serial port. The host software developed in Delphi. It is running at the moment, but not yet finalized.
If I find interest, I?ll post the details, so we can discuss, and I'll be happy to receive comments and contributions
Hobby Circuits and Small Projects Problems :: 02-24-2006 05:15 :: samehham :: Replies: 4 :: Views: 2606
I have build a simulation system to test my Error Correcting Code.
And now I add modulation/demodulation module.
When I apply BPSK and QPSK to system, I found their BER versus SNR curve almost identical, is it right in theory?
My code rate is 0.9, code length >10000.
BTW, I found BPSK and QPSK have identical uncoded BER versus SN
Electronic Elementary Questions :: 03-05-2006 06:57 :: davyzhu :: Replies: 1 :: Views: 1952
I need a good V/I curve tracer circuit shematic. I think to use it with my scope
thanks for helping
Professional Hardware and Electronics Design :: 03-17-2006 18:57 :: eemkutay :: Replies: 1 :: Views: 1957
I want to plot an IV curve for NMOS transistor but couldn't find any familiar syntax such as
.dc vds 0 5 0.1 vgate 0 5 0.5 --> in spice
Anyone please help me to make similar statement in spectre.
I don't have analog artist or any gui. Need the netlist.
Analog IC Design and Layout :: 03-20-2006 18:52 :: cvo :: Replies: 2 :: Views: 796
Is every spice model suitable to plot gm/id curve?
how should the analysis look like.
i use .dc ibias start stop step but i think it's not correct
Analog IC Design and Layout :: 03-25-2006 06:02 :: jutek :: Replies: 5 :: Views: 1423
In measuring clock signal phase noise, we can use spectrum analyzer.
The output curve can be processed to get phase noise curve. However, the spectrum will be coved by the noise floor in large offset frequency.
How we extract the real phase noise from the output of spectrum analyzer?
RF, Microwave, Antennas and Optics :: 03-27-2006 08:01 :: neoflash :: Replies: 4 :: Views: 1169
hi,everybody pls help me about plotting BER vs receive power info,IEC-61280-2-8 or OSFTP-8 About optical communication plot BER curve vs receive power extrapolation sensitivity(BER=10E-12). etc.
For example: DWDM system sensitivity extrapolation (BER=10E-12)
give some material or info.
RF, Microwave, Antennas and Optics :: 03-29-2006 07:20 :: francx :: Replies: 6 :: Views: 2826
Do you know how to generate parabolic current curve across temperature? It has
positive TC and negative TC as well.
Electronic Elementary Questions :: 04-14-2006 04:51 :: surianova :: Replies: 5 :: Views: 582