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Recent content by johnnysp

  1. J

    Orcad Spice Transient Analysis (Parametric Sweep)

    I have solved my problem. I installed version 16.3 and everything is ok!
  2. J

    Orcad Spice Transient Analysis (Parametric Sweep)

    Hello everybody, I have Orcad Spice 16. In transient analysis, parametric sweep is disabled. Does anyone know why it happens??
  3. J

    Model Parameter simulation - Spice

    Hello, I want to simulate o dc booster in spice. I would like to make a model simulation of Lbreak. I try values from 1u to 1m but I'd like to have results after a period of time. As it is known a dc booster gives results after some mseconds. How could I make a model simulation of Lbreak after...
  4. J

    CMOS DC booster - Start up circuit

    What do you mean saying "use a transformer"? Using, for example, model IRF034 and Vin=50m, L=22u, C=10u, RL=100k, the result of Vout=1.4V which is pretty good. However, power consumption in MOS switch is 100% of Vin's power. My Vpulse generator has Period=10m, PW=7.5m and V=1V. What changes...
  5. J

    CMOS DC booster - Start up circuit

    I change duty cycle but power consumption in MOS is still to 100%. The only way i could decrease consumprion was by changing width of MOS to micrometers. However, in this way voltage boosting is nowhere. Any idea of how I could reach both targets?
  6. J

    CMOS DC booster - Start up circuit

    Hello everybody, I'm new in this forum and i have some questions about a dc-dc booster creating for my diploma thesis. I have the above circuit. Mos-switch is designed in 0.13um. I want to have an output voltage to 1V coming from an input one of 50mV - 80mV. The problem I am facing is that i...
  7. J

    Orcad Spice simulation of CMOS umc 0.18

    Can anyone tell me where can I find the parameters of umc 0.18 technology in order to simulate a mosfet spice model??
  8. J

    Depletion mosfet in umc

    Does anyone know if umc 0.18 library has depletion mosfet elements;;

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