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Recent content by emie

  1. E

    Peak diode recovery voltage slope of transistor

    I want to make a buck of course without spikes. What I can do: I must change the transistor with low rise time dans fall time?
  2. E

    Peak diode recovery voltage slope of transistor

    That is my signal - - - Updated - - - This my circuit
  3. E

    Peak diode recovery voltage slope of transistor

    I think that I confused definitions, My problem is that the output voltage of my transistor has peaks, And I can't identify the origin of that?
  4. E

    Peak diode recovery voltage slope of transistor

    Hello, I had made a circuit with a transistor driven by pulse signal, But my problem is that the output voltage has a peak value of 2V for some nanoseconds. My question is how to minimize the value of peaks? Is this by choosing a transistor with min Peak diode recovery voltage slope? Best...
  5. E

    Programming a square signal

    Yeah ! I want to program a signal with period = 500 µs and duty cycle = 10%. But the problem is my function generator has 20% such as duty cycle min value. if there is an easier way to solve my problem, I can use it, instead of using FPGA :) - - - Updated - - - Dpaul, what do you mean by a...
  6. E

    Programming a square signal

    Hello, My problem is I can't have a square signal, which its period is 500 µs and its duty cycle is 10%, with a function generator. So, I think I can you a FPGA to program a such signal. What do you think, it's feasible or not? Emie
  7. E

    Tension sources with limited current with ORCAD or LTspice

    Hello, Do you know which voltage source delivers limited current with Orcad? As example, I want to use a source voltage 20V/1A. Thank you, Emie
  8. E

    Role of Bootstrap capacitor

    Hello, I'm looking for what's exactly the role of a bootstrap capacitor placed in the ate of a N-Mosfet? Thank you, Emie
  9. E

    [Moved]: External dependent frequency voltage source

    Is-there in ADS a bloc like S-parameter but for dependent frequency voltage source?
  10. E

    [Moved]: External dependent frequency voltage source

    Hello, i am serching for a method to introduce an external dependent frequency voltage source in ADS agilent (version 2011).:oops: Thank you,
  11. E

    S-parameters from just S11

    Thank you a lot, Emie
  12. E

    S-parameters from just S11

    Now I'm looking for write_snp on ADS. For creating S-parameter fom R value, I think I can use the relation between S11 and Zin = R. Is that correct? Thank you a lot for your help, Emie - - - Updated - - - Thank you I had solved my problem, you have given me many information, I peak the first...
  13. E

    S-parameters from just S11

    What I want exactly is to integer R values vs frequency in my circuit. This values are exported form another structure using this relation R = Real (Zin1). Now, I want to use the values of (R Vs fr) in my news circuit using a block impedance. Thank you for your help, Emie - - - Updated - - -...
  14. E

    S-parameters from just S11

    Thank you Volker for your response. This information is helpful for me. I have another question, how to define a resistance, which its value vs frequency are exported from data on ADS graph. Do we use Z1P_Eqn or another block? Thank you, Emie
  15. E

    S-parameters from just S11

    Hello, It's the first time for me to write in this forum. I'm beginner in ADS and measurement of S-parameters. I want to know if we can extract S-parameters form only S11 one-port measurement? I want also define a Z-impedance on ADS but I didn't find the block for that. Thank you, Emie
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