Help im dying of stuckness!!!

Discussion in 'Homework Help' started by Smiler7, Apr 30, 2013.

  1. Smiler7

    Thread Starter New Member

    Apr 30, 2013
    1
    0
    My aim is to replicate a common emitter amplifier circuit that has a split power supply (+9 to -9 volts).

    However, the circuit i am trying to reproduce from my sheet is in shorthand with the use of global symbols instead of the full circuit.

    e.g

    full schematic.

    http://www.frontdoor.biz/HowToPCB/HowToPCB-images/HowToPCB-sch01.gif

    Short hand

    http://www.frontdoor.biz/HowToPCB/HowToPCB-images/HowToPCB-sch02.gif


    --------------------------------------------------------------------
    My actual schematic looks quite similar to this one below..
    The differences being that... +V = Vcc, whilst bottom rail = Vee. B= Vin, C=Vout.

    And there is no bias resistor or signal out. The load resistor is known as Rc.

    The top rail or Vcc is 9V
    The bottom rail or Vee =-9v
    Vout = 0v

    split supply

    http://www.learnabout-electronics.org/images/image3112a.gif
    ------------------------------------------------------------------------

    Now i want to reproduce this circuit using pspice.


    The problem is Pspice doesn't allow 'shorthand' schematics or reference designators such as Vin and Vout.

    So taking this schematic (with the modifications above).

    http://www.learnabout-electronics.org/images/image3112a.gif

    Where would i put my voltage supply? What do the Vcc and Vee wires connect too? Where does Vin and Vout connect? And also for a split power supply would i use two voltage supplies?

    So basically how do I read shorthand circuits. I know that all grnds are connected.

    --------------------------------------------------------------------------
    ok, below is a usefull webpage to further understand me. Skip to the part where it says the title 'Symbols, continued...'

    http://www.frontdoor.biz/HowToPCB/HowToPCB-Schematics.html

    ('Symbols that don't have reference designators. These symbols don't represent components, they represent ELECTRICAL CONNECTIONS.

    In a complex circuit, if every power and ground net were shown connected together with lines, the diagram would be too cluttered, and more difficult to interpret. Instead of showing them connected with lines, we use GLOBAL SYMBOLS. Anything connected with the same global symbol, even across multiple sheets, is assumed to be connected together.')
     
    Last edited: Apr 30, 2013
  2. WBahn

    Moderator

    Mar 31, 2012
    17,747
    4,796
    So.... it appears you answered your own question. What is it you are asking us?
     
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