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Recent content by Sciebou

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    Simulation problem of a classical PI controllers using op amp for buck converters

    Thank you FvM for your quick feedback. You are right. VDRV was huge and it has to be reduced. However, I've seen in this article: http://www.radio-sensors.se/download/gate-driver2.pdf, that for high side gate drivers, there are the following conditions: VDRV < VGS,max VIN < VDRV - VGS,Miller...
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    Simulation problem of a classical PI controllers using op amp for buck converters

    Hi, Thank you FvM for your answer and advice! I added a non-isolated totem-pole gate driver for the switch as in the figures below (with VDRV = 350V as Vin = 270V) Unfortunately, my schematic still doesn't work properly. There is the following warning message: "The no_ramping...
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    Simulation problem of a classical PI controllers using op amp for buck converters

    Hi BradtheRad, Thank you for your idea. I've thus reduced the time step to 100n, because at 10n and even 50n, SABER seems to have some difficulties to find numerical solutions at the beginning of the simulation. But a smaller time step doesn't change the problem. The...
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    Simulation problem of a classical PI controllers using op amp for buck converters

    Hello, I would like to simulate a buck converter in closed-loop with SABER. Here is the schematic: Classically, there are two loops with PI controllers: external voltage loop, and internal current loop. The output of the current loop's PI controller is compared to a sawtooth...
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    Problem of translating Pspice model of UCC28950 in SABER

    Hello, I would like to use UCC28950 controller in SABER schematics in order to control a phase-shifted full-bridge converter. I meet some problems to translate Pspice model into SABER model. There is a following error message: But, I find that there are 2 news files that...
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    Problem of using CREE SiC MOSFET Model in PSPICE

    Hi mvaseem, Thank you very much for your feedback. I used CSHUNT option with a value of 1e-13, but it hasn't converged yet. May you send me the simulation that you modified so that I can have a test? Thank you very much. Sciebou.
  7. S

    Problem of using CREE SiC MOSFET Model in PSPICE

    Hi mvaseem, Sorry for this! You can find attached the missing files for IR2111. Thank you for your help! Sciebou.
  8. S

    Problem of using CREE SiC MOSFET Model in PSPICE

    Hi mvaseem, Thank you very much for your information. I send you in the attached file my simulation. Sciebou.
  9. S

    Problem of using CREE SiC MOSFET Model in PSPICE

    Hello, I have again a convergence problem with the simulation of the following circuit including C2M0080120D model: Circuit's topology: Error message: I have adopted the auto-convergence option like in mvaseem's messages above. Still, the convergence problem persists...
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    Problem of using CREE SiC MOSFET Model in PSPICE

    Wonderful! It seems that there isn't an auto-convergence option on the previous versions than 16.6. But when I tried with the 16.6 version of Pspice. I works perfectly. Thank you very much for your kind help.
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    Problem of using CREE SiC MOSFET Model in PSPICE

    Hi mvaseem, Thank you very much for your quick answer. You are right, the picture didn't appear. But you have answered to my question. I tested the .lib file and it works perfectly with a simple circuit. However, when I add a voltage sweep Vds rising from 0 to 18 as in the figure below: The...
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    Problem of using CREE SiC MOSFET Model in PSPICE

    Hello mvaseem, Many thanks for your feedback! The text file effectively works. Otherwise, my work consists of modeling an electronic circuit with many components and so on. As I'm not used to build circuits with codes. I'm very interested to import .txt file to .lib file so that a new component...
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    Problem of using CREE SiC MOSFET Model in PSPICE

    Hello, I start to work on modeling of SiC based converters and need to have reliable model of SiC MOSFET in Pspice. I found a CREE model of SiC MOSFETs C2M0080120D on the following website...

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