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SIGNAL FLOW GRAPHS

SIGNAL FLOW GRAPHS. SUBMITTED BY: Mrs. RAMANDEEP KAUR ASSOT. PROFESSOR-EEE. Automatic control. block. pickoff point. summer. Automatic control. Automatic control. Automatic control. original. equivalent. G. G. G. original. equivalent. G. G. G. G. G. original. equivalent. G.

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SIGNAL FLOW GRAPHS

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  1. SIGNAL FLOW GRAPHS SUBMITTED BY: Mrs. RAMANDEEP KAUR ASSOT. PROFESSOR-EEE

  2. Automatic control block pickoff point summer Automatic Control by Meiling CHEN

  3. Automatic control (c)

  4. Automatic control

  5. Automatic control

  6. original equivalent

  7. G G G original equivalent G G

  8. G G G original equivalent G G

  9. Automatic control Example 1

  10. Automatic control Example 2

  11. Signal flow graphs Automatic control

  12. Automatic control

  13. Automatic control Mason’s Rule Mason’s gain rule is as follows: the transfer function of a system with signal-input, signal-output flow graphs is Δ=1-(sum of all loop gains)+(sum of products of gains of all combinations if 2 nontouching loops)- (sum of products of gains of all combinations if 3 nontouching loops)+… A path is any succession of branches, from input to output, in the direction of the arrows, that does not pass any node more than once. A loop is any closed succession of branches in the direction of the arrows that does not pass any node more than once.

  14. Automatic control Example 3

  15. Example 4 find

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