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Analysis of RDS Networks by Prof. T. S. Rathore, EE Dept., IIT Bombay

This paper details the analysis methods for RDS networks using both graphical and analytical approaches. It covers the assumed diode method, break point method, and sequential break point method. The steps involved in each method are outlined, including determining states, plotting curves, and identifying crossing points. A flow chart for fault diagnosis in RDS networks is also provided.

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Analysis of RDS Networks by Prof. T. S. Rathore, EE Dept., IIT Bombay

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  1. Analysis of RDS NetworksbyProf. T. S. Rathore.EE Dept., IIT BombayMarch 2006

  2. Analysis of RDS Network • Fig.: RDS circuit • Assumed diode method - • It is partly graphical and partly analytical method. • Steps involved – • Determine vo–vi relation for all the 2n possible states of diodes. • Plot these straight lines.

  3. Fig. : Plot of straight line relations • 3) Find diode states corresponding to large –ve input (L state) and +ve input (R state). • 4) Find the leftmost crossing point (C1). • 5) Repeat until all crossing points are exhausted. • Number of calculation steps (CSs) are, = 32 + 2 + 5 = 39

  4. Break point method – • Steps involved – • Assuming one of the diode at its break point, confirm the remaining diode states. • Repeat step 1 for all the remaining diodes. • Find the left most (L) and right most (R) states. • Plot v0 – vi curves. • Number of CSs are, = 80 + 2 = 82

  5. Sequential Break point method – Steps involved – Determine the leftmost state (L) and rightmost state (R). 2) Find the fictitious break voltages – FBVs (vis) in L state. 3) Identify the minimum FBV.

  6. 4) Continue this process till R state is arrived. 5) Join all the break points.

  7. Fig.: Transfer characteristic. • Total number of CSs are, N3 (28) < N1 (39) < N2 (82)

  8. Flow chart for the analysis and fault diagnosis of RDS network for sample circuit for sample circuit for fault- detection for CUT

  9. Test circuit X axis → 1cm=1V Y axis → 1cm=1V Fault dictionary

  10. THANK YOU

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