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    Modeling of SiC BJT static characteristics in Pspice

    hi, I have attached a SiC BJT Device output characteristics IC vs Vce curve. I have the problem that some of these curves do not start from origin . They have a negative Ic current at Vce=0 V for different step Ib currents which range from 200ma to 2.2A . Could you tell me what is the reason for...
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    How to obtain the data from a word file

    hi, I would like to know if there is software which could obtain the data from the word doc graph when i click on the graph of Ic vs Vce plot. if u know or refer to someone who knows . viren
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    Pspice Modeling of BJT curve Ib vs Vbe

    constant vbe hi, Thank you for your suggestion . The Vbe=2.7V is the p - n junction threshold voltage and so at 2.7 volts the Ib curve jumps like an exponential curve and before 2.7 V there is no base current . And the Ic vs Vce curves are correct . I have used the same BJt device. viren
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    Pspice Modeling of BJT curve Ib vs Vbe

    graph of ib versus vbe hi, I have tried to measure at the range of 700mV-1200mV but could not get any current . It is because the SiC BJT has threshold voltage at 2.7 V and I have already measured in that range and also did not get good data . So now I would like to know is it possible to do...
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    Pspice Modeling of BJT curve Ib vs Vbe

    plot bjt curves hi, I have attached the excel file of gummel plot in the message. But when I measure Vbe for negative voltage from 2V to 3.7V I get a message that negative values cannot be plotted in log scale and then after i ignore it it shows an empty plot. Let me know if I am wrong or my...
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    Pspice Modeling of BJT curve Ib vs Vbe

    how to plot characteristic curves in pspice hi, I have a logarithmic plot of Ib ,Ie vs Vb attached with the message. Please let me know if u know how to extract parameters from the plot. viren
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    Pspice Modeling of BJT curve Ib vs Vbe

    vbe of bjt hi, I have a circuit to calculate the gummel plot Ln(Ic) Ln(Ib) vs Vbe . I connected the base and collector together. I connected a 10 ohmresistor to the base . Then I connected a current source to the resistor and emitter was grounded. I am measuring the collector current and base...
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    Pspice Modeling of BJT curve Ib vs Vbe

    change vbe voltage pspice How do I keep the potential of base and collector at same potential ? . I have a 370B tektronix curve tracer . What connections or what configuration should I use on this curve tracer to set it up for my measurements. I connected one wire each to base...
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    Pspice Modeling of BJT curve Ib vs Vbe

    bjt characteristic curve excel The Test setup you have mentioned is not using curve tracer. I can use only a curve tracer here. So if u have a suggestion for setting up a test using a curve tracer for the Ic vs Vbe measurement let me know. thanks Added after 2 hours 21 minutes: Hi, I have...
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    Pspice Modeling of BJT curve Ib vs Vbe

    transistor parameters vbe pspice Hi , I have attached the IC vs Vce plot . I did not measure the Ic vs Vbe for the device. I also when I try to convert the curve tracer plot to excel file format it does not show me the plot but the the Ib vs Vbe plot is similar to one I am going to attach...
  11. V

    Pspice Modeling of BJT curve Ib vs Vbe

    vbe measurement Hi, Thank you very much for your suggestion. I have changed the values of ISE and ISC to a value between 0 and 1. So now I have to get the curve down flat between 0 V to 2.7 V and then it should begin to rise upto 2 V . So my question is how to get the slope down to zero between...
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    Pspice Modeling of BJT curve Ib vs Vbe

    spice modelling of bipolar vbe Hi, I only have a curve tracer to do the BJT measurements.
  13. V

    Pspice Modeling of BJT curve Ib vs Vbe

    gummel plot pspice how to make Now I have setup my circuit as follows. There is a current source at the base with step curent of 200mA and then a resistor of 1 G ohm is connected . So how do i measure for getting Ib vs Vbe curve . I am getting a linear curve having a slope of 1 when i run the...
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    Pspice Modeling of BJT curve Ib vs Vbe

    vbe on voltage data pspice Hi, 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...
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    Pspice Modeling of BJT

    changing transistor beta value in pspice Hi, My value for NE=4 ISE=3.9e-3 BF=15 IS=39.34e-7 I have got my low current curves for IC fitting with the real Ic Vs Vce curve but when Ichange ISE for large IC then it increases the max IC current to 6 A .
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    Pspice Modeling of BJT

    graph bjt characteristics pspice I can now open the file. Thanks Added after 1 hours 47 minutes: How do I use these equations and do parameter measurements in Pspice .
  17. V

    Pspice Modeling of BJT

    pspice vce sat Hi krashkealoha I cannot open the file so please send me an email with the file My email is joshiviren@gmail.com Added after 4 hours 16 minutes: krashkealoha, I am trying to fit the DC characteristics of the real BJT which I had attached in my earlier email using a pspice BJT...
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    Pspice Modeling of BJT

    gummel poon parameter spice I have read a book on Modeling of semiconductor devices using Pspice. I changed the ISE and NE parameters as there is drop in BF at low currents. But I don't know how to calculate the value of ISE and NE . The book shows a ln(Ic) , ln(Ib) Vs Vbe graph and my graph...
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    Pspice Modeling of BJT

    pspice bjt 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. Can u please provide some advice?

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