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The Op Amp PID Controller

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About SPICE | SPICE Basics | Running SPICE | CIRCUIT COLLECTION SPICE Commands | SPICE Demos and Downloads About Us | Contact Us | Home CIRCUIT OP_PID1.CIR   Download the SPICE file We've all heard about the wonders of the PID controller, bringing a system's output - temperature, velocity, light - to its desired set point quickly and accurately. But now, your project manager says okay, design one for us. Although there's a number of ways to do it, the circuit above nicely separates the three terms into three individual op amp circuits. We'll build it in SPICE, test each term and finally place it inside a motor speed controller for you to tune. If you wish, take a quick review of PID Control. THE PID CONTROLLER What basic components are needed for a servo system? Many look similar to the circuit below. The error amp gives you a constant reality check. How? It compares where you want to go, Vset, with where you're at now, Vsensor, by calculating the difference between the two, Verr = Vse

Op Amp PID Controller CIRCUIT OP_PID1.CIR Download the SPICE file We've all heard about the wonders of the PID controller, bringing a system's output - temperature, velocity, light - to its desired set point quickly and accurately. But now, your project manager says okay, design one for us. Although there's a number of ways to do it, the circuit above nicely separates the three terms into three individual op amp circuits. We'll build it in SPICE, test each term and finally place it inside a motor speed controller for you to tune. If you wish, take a quick review of PID Control. THE PID…

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