Further Information

Further Information

Learning Outcomes tested in this assessment (from the Module Descriptor):
•    Models: gain; dynamic systems; block diagram algebra; differential equations; first order; second order; transfer functions; Laplace transform
•    Inputs, graphs and equations: step; overshoot; delay time; rise time; settling time; damping and damping ratio.

Assessment Criteria/Mark Scheme:
Mark scheme broken down in assignment details

Nature of the submission required:
A written assignment of not more than 2000 words with appropriate diagrams.Handwritten will be acceptable due to the complexity of algebraic derivations

Instructions to students:
Working individually, you are to answer all parts of the assignment. Joint reports are not allowed and similar reports will be penalised according to the Assessment Regulations for Northumbria Awards (ARNA)

Referencing Style:
If referencing of material is required, use the Harvard system

Expected size of the submission:
Maximum of 2000 words – a 10% deduction to the achieved score will be made if the assignment exceeds this.

Academic Conduct:
You must adhere to the university regulations on academic conduct. Formal inquiry proceedings will be instigated if there is any suspicion of misconduct or plagiarism in your work. Refer to the University’s regulations on assessment if you are unclear as to the meaning of these terms. The latest copy is available on the university website, or contact K.Corner, Curriculum Leader, in room L107.


1.    Use fundamental electrical principles to derive a mathematical model for the above circuit?                                                                         [ 10 marks ]

2.    Show how the model can be manipulated into the form of the standard 2nd order transfer function in terms of time constant and damping ratio. Derive subsidiary models for system constants?                                                         [ 10 marks ]

3.    Apply a 12V input as a step change to the transfer function and convert the result into an expression for Vout in the time domain?                                                    [ 10 marks ]

4.    For values of R = 100 ? , C = 20 µF and L = 2.0H produce a graph of Vout against time using an appropriate scale to show response time.? , comment on the graph?                                                                          [ 10 marks ]

5.    For the component values given what is the value of peak overshoot and settling time to within 5% of final value?                                                            [ 4 marks ]

6.    Design a controller using a combination of proportional, Integral or derivative control that you consider appropriate.                                                            [10 marks ]

7.    Using your controller in series with the process show how the output peak overshot and settling time can be improved.

8.    How did you arrive at parameters for your controller settings

[10 marks]