virtual ground summing amplifier integrator …...Op-amp Integrator Circuit Vin -Vout We know from...
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Phys 3330 Lecture 6 • virtual ground • summing amplifier • integrator • differentiator • PID controller
Transcript of virtual ground summing amplifier integrator …...Op-amp Integrator Circuit Vin -Vout We know from...
Phys3330Lecture6
• virtualground• summingamplifier• integrator• differentiator• PIDcontroller
virtualground
virtualground
V≈0()
whyisvirtualgrounduseful?
I=Vin/R1=-Vout/Rf
summingamplifier
summingamplifier
summingamplifierwithscaling
summingamplifierwithscaling
(R1sintheratio1,2,4,8)
opampintegrator
integratorsignals
integratorwithbypassresistor
opampdifferentiator
differentiatorsignals
proportional/integral/differential(PID)controller
proportional/integral/differential(PID)controller