Homework Soursewhat type of controller is in figure 2 what is the expected
what type of controller is in figure 2? what is the expected response of the
XFG1. .. V1 15V 1kohm U1: U2 R5 Q1 10, okohn_1% :BUT PN VIRTUAL: R72 R3 470ohm,-5% M1 10kohm R4 0.047iF R4 Figure-2 Solution
The first operational amplifier has an inverting amplifier-integral topology, which is applied to the input signal. Subsequently, the same propagates to the second operational amplifier, where the subtraction of the input signal and the outgoing from the engine occurs (error detection).
The output of the operational amplifier U2 is the error signal, which goes to the BJT amplifier to increase current levels and then be injected into the RLC system (circuit with one pole at zero and two zeros), feeding the motor (plant).
It is a control system with a closed-loop PID controller. The expected unit step response of the system has to have a zero steady-state error because of the pole at zero.
