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Tài liệu 4. chapter 4 transfer functions

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SYSTEM DYNAMICS & CONTROL CHAPTER 4 TRANSFER FUNCTIONS Dr. Vo Tuong Quan HCMUT - 2011 Transfer Functions Purpose of transfer function??? A block diagram composes of 3 components  Summing point  Function block  Pickoff point 2  2011 – Vo Tuong Quan Transfer Functions 3  2011 – Vo Tuong Quan Transfer Functions Serial transfer functions 4  2011 – Vo Tuong Quan Transfer Functions Parallel transfer functions 5  2011 – Vo Tuong Quan Transfer Functions Transfer functions of feedback systems Negative feedback Unity Negative feedback 6  2011 – Vo Tuong Quan Transfer Functions Transfer functions of feedback systems Positive feedback Unity Positive feedback 7  2011 – Vo Tuong Quan Transfer Functions Moving a pickoff point behind a block 8  2011 – Vo Tuong Quan Transfer Functions Moving a pickoff point behind a block 9  2011 – Vo Tuong Quan Transfer Functions Moving a summing point behind a block 10  2011 – Vo Tuong Quan Transfer Functions Moving a summing point behind a block 11  2011 – Vo Tuong Quan Transfer Functions Interchange the position of two consecutive summing points 12  2011 – Vo Tuong Quan Transfer Functions Splitting the summing point 13  2011 – Vo Tuong Quan Transfer Functions Prohibit: Do not interchange the positions of a pickoff point and a summing point 14  2011 – Vo Tuong Quan Transfer Functions Example 1 Find the equivalent transfer function of the following system 15  2011 – Vo Tuong Quan Transfer Functions Example 1: Solution 16  2011 – Vo Tuong Quan Transfer Functions Example 1: Solution 17  2011 – Vo Tuong Quan Transfer Functions Example 1: Solution 18  2011 – Vo Tuong Quan Transfer Functions Example 2 Find the equivalent transfer function of the following system 19  2011 – Vo Tuong Quan Transfer Functions Example 2: Solution 20  2011 – Vo Tuong Quan
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