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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 NetworksbyProf. T. S. Rathore.EE Dept., IIT BombayMarch 2006
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.
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
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
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.
4) Continue this process till R state is arrived. 5) Join all the break points.
Fig.: Transfer characteristic. • Total number of CSs are, N3 (28) < N1 (39) < N2 (82)
Flow chart for the analysis and fault diagnosis of RDS network for sample circuit for sample circuit for fault- detection for CUT
Test circuit X axis → 1cm=1V Y axis → 1cm=1V Fault dictionary