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A dc servomotor is going to be used to drive a conveyor belt in a potato chip factory. The conveyor belt will contain bags of potato chips that will be dumped into cardboard boxes for shipping. The lead process controls engineer has instructed you to use a PID controller to control the conveyor system to a given position per unit of time, preferably in minutes. The feedback is transducer represented as a potentiometer measuring linear movement. For every 1/2 meter per second the conveyor belt moves along, the transducer reads 0.75VDC. The maximum reading the transducer is 20 m/s. Construct a PID controller to control the conveyor system so that from a full stop, the system will achieve a target movement of 150 meters per minute within 105 seconds before accounting for integral and derivative functions. Assume the two capacitor values are 1uF and the resistors 10kOhm for the integrator and differentiator portions of the controller. Give the representation of the actualized PID controller, i.e. give the circuit.
In a unity feedback system, the open-loop transfer function is of the form Gol(s) = k/(1+s/ωp). Calculate the bandwidth of the closed-loop transfer function. How does the bandwidth depend on K and ωp
Given: Si is doped with boron atoms; concentration of boron atoms is 1014 cm-3. Find: carrier concentration in Si at T = 300 K. (Hint: use Principle of Space Charge Neutrality) Find: Ei - position of Fermi level in intrinsic Si at T..
The characteristic equation ofthe system is q(s) = s^5+13s^4+33S^3+32s^2+20s+k^2 where k>0. a). Find the range of values of k for which the system is stable using the Routh-Hurwitz table. b) What value of k makes the system marginally stable
An Amplifier has an input voltage of 10mV rms and an output voltageof 5V rms across a 10-Ω load. The input current is 1μArms. Assume that the input and output impedances are purelyresistive. Find the input resistance.
Choose the best answer for what a DC blocking or coupling capacitor does, assume the capacitor value is chosen to be too small. Blocks the DC and is relatively high impedance to the AC voltage. Blocks only the AC voltage going ..
Use K-map reverse engineering to evaluate if the following SOP functions are minimized If not, find the minimal SOP expression. (a) F(A,B,C,D) = A'C'D' + A'C + AB'C' + ACD' (b) F(W,X,Y,Z) = XY' + WX'Y' + W'XYZ + W'X'YZ'
What is the current if the voltage source is reduced to 80% of the original value. Will the current increase or decrease and by how many percent if the total resistance of the circuit is 10% of its original value.
Represent the source current and the branch currents
The armature of a simple DC generator is rotating at a speed of 188.5 rad/s. If the armature consists of 3 turns per coil, and a current is flowing in the field coils such that the field coils produce a flux of 0.0333 Wb
Write a MATLAB script to implement the linear congruential algorithm to generate 5000 pseudo-random variates in the interval (0,1). Use the following parameters: seed=17; A=1103515245; M=2147483648; C=12345.
A uniform magnetic field is applied perpendicular to the plane of a 60-turn circular coil with a radius of 6.0 cm and a resistance of 0.60 ohms. If the magnetic field increases uniformly from 0.20 T to 1.8 T in 0.20 s
a)How large a parallel resistor Ra mustbe placed in parallel with the D'Arsonval meter movement toextend its useful measuring range to 1A b)For the design completed in Prob. a determine themeasured current that flows when the D'Arsonval metermove..
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