9 inputoutput behavior check that negative feedback is

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Unformatted text preview: .9): Input/output behavior: Check that negative feedback is present ECE 207 - 9 Nov 10 Page 3 of 5 - Nov 9, 2010 Can use the switch to send this to zero Applications of Op-Amps: treat the integrator circuit, the gain circuit, and summer circuit like an operational block ECE 207 - 9 Nov 10 Page 4 of 5 - Nov 9, 2010 Solving differential equations with circuits: trying to find x(t) given u(t) (forcing function) Solution: Integrate the above equation once: Integrate again: similarly with a1 and a2, except different circuits (there are 9 operational amplifiers here) The above is an analog computer, the solution would be a voltage ( x(t) would be a voltage) ECE 207 - 9 Nov 10 Active filters: (toasters?) Recall passive filter: Low pass example (Sallen-Key section, figure 14.40) 2nd order filter Page 5 of 5 - Nov 9, 2010...
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