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Analysis of RDS Networks by Prof. T. S. Rathore. EE Dept., IIT Bombay March 2006

Analysis of RDS Networks by Prof. T. S. Rathore. EE Dept., IIT Bombay March 2006. Analysis of RDS Network Fig.: RDS circuit Assumed diode method - It is partly graphical and partly analytical method. Steps involved –

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Analysis of RDS Networks by Prof. T. S. Rathore. EE Dept., IIT Bombay March 2006

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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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