Tina ti

Discussion in 'General Electronics Chat' started by rajkrishabc, Aug 17, 2009.

  1. rajkrishabc

    Thread Starter New Member

    Aug 17, 2009
    2
    0
    I am new to using TINA-TI. I am trying to generate an amplifier circuit with gate level transistors. I am not using any sub-circuit. the schematic involves gate level design only involving transistors. When I am trying to run a transient analysis I get the following error.

    1) "You must add atleast one output to the schematic" -----> I don't see an output port option in TINA-TI. Where do I find one???

    2) "The circuit must contain on IC" --------> Is it OK if I just add a buffer sub-circuit in the schematic.

    Please help

    -Rajkrish
     
  2. ELECTRONERD

    Senior Member

    May 26, 2009
    1,146
    16
    Please include a schematic; this will give us a visual aid helping us accomodate your needs faster and easier. Also include any other information we might find helpful. What kind of amplifier are you designing and what application is it for?
     
  3. rajkrishabc

    Thread Starter New Member

    Aug 17, 2009
    2
    0
    here is a simple circuit ( attached buffer_no outout.pdf) comprising of 2 inverters in series with a buffer at the output . I just don't know where to find an output port for the output on the schematic. I included a buffer sub-circuit at the output just b'se the tool complains that there should be atleast 1 IC in the schematic.

    I really am not struggling with the design here but with the tool.
    when I try to do a transient analysis, I get an error that says " you must add atleast one output to the schematic"

    thanks
     
  4. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    You have the input connected to the positive supply voltage so the Mosfet amplifier is saturated and will not work.

    The input must be biased at half the supply voltage with two series resistors.
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    The buffer amp has the power connected wrongly - the positive terminal is tied to ground. Your P channel mosfets look upside down, too.
     
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