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Generating a rippled voltage supply

  1. Sep 6, 2007 #1
  2. jcsd
  3. Sep 6, 2007 #2

    berkeman

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    Staff: Mentor

    Sure. You want to model a BJT power follower in SPICE? Can you post a copy of your SPICE deck?
     
  4. Sep 6, 2007 #3
    im thinking of a schematic like this with vin as a varying sinusoidal input(0-20 Mhz) of amplitude 200mv. I want vout to be reasonably flat across this range.Also at my output id like to have a DC of around 3.3V. It is also worth noting that my load sinks up to 1A of current.Is it worth a shot?
     

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  5. Sep 6, 2007 #4

    berkeman

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    Staff: Mentor

    That's a good start for a circuit to simulate, but I'd DC couple the output (delete C3). Which NPN BJTs were you thinking of simulating?
     
  6. Sep 6, 2007 #5
    i see...deleting C3 would let me have AC and DC at the output!
    as for the type of NPN to use im not really sure,right now its trial and error
     
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