4 Resistor MOSFET P-MOS

Discussion in 'Homework Help' started by forbi, Oct 5, 2012.

  1. forbi

    Thread Starter Member

    Sep 11, 2012
    37
    0
    Hi,

    How do i go about finding the Q-Point of the above Circuit.



    i do by Vdd-IsRs+Vgs-IgReq-Veq=0
    and Ig =0A so Is=Id

    equation can be broken down into
    Vdd-IdRs+Vgs-Veq=0

    What i get for Vgs is 5.873v and -1.873v. it seems that my Vgs is wrong..

    Btw to find Vds can i do by using this equation
    Vdd-IdRs-Vsd-IdRd-Vss=0

    Anyone could help me see what i did wrong.
     
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