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 How to evaluate Q factor of a 2nd order Low Pass filter when no overshoot with PSPICE ? 

Last post Tue, Oct 16 2012 1:35 AM by FlBe. 0 replies.
Started by FlBe 16 Oct 2012 01:35 AM. Topic has 0 replies and 876 views
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  • Tue, Oct 16 2012 1:35 AM

    • FlBe
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    How to evaluate Q factor of a 2nd order Low Pass filter when no overshoot with PSPICE ? Reply

    Hi,

    I use the "Q-Bandpass" measurement to evaluate the Q factor of a Low pass Sallen Key filter (2nd order).

    If the response presents an overshoot (Q>1), this evaluation works fine but when there is no overshoot because Q is < 1, PSPICE is not able to evalute it.

    Q is equal to square root of (R1*R2*C1*C2) / (R1+R2) / C2. Therefore how to evaluate this formula with the values in my schematic ?

    The purpose is to evaluate Q in MONTE-CARLO analysis but with Q = 0.7 < 1.

    Thank you in advance for your help. 

    • Post Points: 5
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Started by FlBe at 16 Oct 2012 01:35 AM. Topic has 0 replies.