How to solve this circuit??

Discussion in 'Homework Help' started by pww, Mar 28, 2010.

  1. pww

    Thread Starter New Member

    Feb 5, 2010
    7
    0
    Assume the op amps have saturation voltages of Vsath = 16V and Vsatl = -16V. Obtain the transfer characteristics that related Vout to Vin.

    I recognize the first op amp circuit as a noninverting comparator with hystersis and it has a θ = R1/R2 = 1. So Vx = 16 or -16 and the hystersis window is width 32.

    And the other circuit is a summing inverting amplifier. So then I get Vout = -2*Vin - 2/5*Vx. This is where I think I'm screwing up.

    Please help! Thanks!
     
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