Op-Amp Circuit Design Problem

Discussion in 'Homework Help' started by dli286, Mar 10, 2009.

  1. dli286

    Thread Starter New Member

    Mar 9, 2009
    6
    0
    There is an input signal Vi that varies in the range [-1,1]. The goal is to have the following output signal: Vo = 10UnitStep(Vi) Vi. Design a circuit that generates Vo(Vi) (if Vi ≥ 0, UnitStep(Vi) = 1; if Vi < 0, UnitStep(Vi) = 0).

    I am using 2 op-amps. The first op-amp has V_i at the non-inverting terminal and inverting terminal is grounded. I am feeding the output into the non-inverting input of a non-inverting amplifier. Will this work for the requirements? Thanks for your help.
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Would something like this work?

    :rolleyes:
     
  3. dli286

    Thread Starter New Member

    Mar 9, 2009
    6
    0
    Thank you for your reply. I will definitely test it out. Thanks again!
     
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