Explore BrainMass

Electronic Engineering

Control Systems - Root Locus

Draw the positive and negative gain root locus for the closed loop system with the open loop transfer function L(s)=... The following information may be used: Angles of departure... Break away points... (See attachment for all details).

Nyquist, Bode Plot and Root Locus

A) Analyse the closed loop stability of the system with open loop transfer function {see attachment} i)Make a sketch of the Bode diagram and hence the full Nyquist diagram, showing all relavent details ii) If the system is unstable, state the number of closed loop right hand plane poles and comment on how you might stabili

Root Locus of a System

Draw the root locus for the system with the open loop transfer function given in the attachment that is connected to a negative feedback loop and confirm the relevant break-away points are at s = 0 and s = -1.

Circuit problem

Find I and Vs in the circuit (shown in the attachment) if the current through the 3 ohm resistor is 2A. See attached file for full problem description.

FINFET---a type of MOSFET

The question is below. Please include where you find the resource to answer this question. Thanks. As the gate length of MOSFET transistor shrinks to nanometer scale, the operation of MOSFET is limited by fundamental physical process. One of the most severe limitation is the inability to reach complete cut-off mode for nano

Numerical Integration and Euler's Formula

For this question, please leave out the proof. Assume the formula is already known. Also, instead of assuming a unit step of U(t) = 1(t), change the question to a sinusoidal input of U(t) = sin(2t). Please solve this question and explain all the steps in detail.

System Peak Time and Overshoot

Please see the attached file for full problem description. I am not too sure how to go about solving this question. Any help would be appreciated.

Dynamic Behaviour of a System

Could you please simulate the dynamic behaviour of the system using matlab and simulink for the mass - spring system? Please refer to the attachment.

Source and load question for train hobby project

Have four circuits. One takes 9Vdc, two 5Vdc, and last one takes 12Vdc. Have variable transformer for source. How do I calculate or choose the voltage needed to run all four circuits with out blowing them all up, and at the same time run each circuit by themselves or two at a time or three, etc. How do I know how much curren

Theveninization of a transisor circuit

Find Icq and Vceq for the circuit when Beta=100. I put the 60k and 30 k resisters in parallel and then did a thevenin equivalence on the parallel combination resistance and the 20k ohm resistor. Then, I did kvl around the b-e loop and got icq=.021ma and vce=.39v. Did I do the thevinin equivalence correctly?

Heating Element

An electric heating element is connected to a 110 v circuit and a current of 3.2 A is flowing through the element. How much energy is used up during a period of 5 hours by the element? (a) 352wh (b) 550wh (c) 1,760wh (d) 2,580wh

Deriving a multilevel circuit

Consider the function in the attached file- the cost of the minimal SOP expression is 14, which includes four gates and 10 inputs to the gates. Use Shannon's expansion to derive a multilevel circuit that has a lower cost and give the cost of your circuit.

Relationship of Logic Expressions

Determine the relationship between the two logic expressions. Please see attached MS Word file for the complete program, in order to answer which of the following relationships is true. A. f= g+x1 B. f= g C. f= g + x2 D. none of the above

Ripple voltage in diode circuit

Determine the capacitance required in a half wave rectifier to produce a ripple voltage less than 0.2V. Assume that the input is a 60Hz signal with maximum voltage VM=100V and the load resistance R= 10kW. I'm confused. What formulas do I use and how do I solve this?