Circuit simplifications using star-to-
delta, parallel and series
transformations, seems pretty
powerful. It allows one to obtain
resistances a circuit that has a planar,
mesh structure (the "window pane"
structure). The term planar is used to
describe circuits that can be drawn in
a plane without the need for wires to
cross one another. Circuit Magic can
help you to obtain both planar and
non-planar circuits resistances.
Sample circuit. Resistors resistances
are different values (not simple, Try to
simplify it using star-to-delta, parallel
and series transformationsü).
Step 2. Solve circuit using Node
Voltage method
Step 2. Calculate circuit resistance
using Ohms Law
Monday, September 3, 2012
Saturday, September 1, 2012
Kennelly's Star-Delta Transformation
Kennelly's Star-Delta
Transformation
Kennelly's Delta - Star
Transformation
Transformation
Kennelly's Delta - Star
Transformation
Using Circuit Magic to calculate Norton Thévenin's & Norton's equivalents
Sample circuit shown below
Step 3.: Resistance calculation. Remove
All DC Voltage sources and branches
with current sources. And connect
node 1 and node 2 using the branch
with current source (current =1 A). (as
shown below)
Step 1 Remove branch connecting
node 1 and node 2.
Step 2: Solve circuit using Node
Voltage method.
Result shown below.
V1=-10
V2=0
V3=-5
V4=-5
V5=0
Step 3.: Resistance calculation. Remove
All DC Voltage sources and branches
with current sources. And connect
node 1 and node 2 using the branch
with current source (current =1 A). (as
shown below)
Step 4: Solve circuit using node voltage
method.
V1=-7,2727
V2=4,5455
V3=-3,6364
V4=-0,90909
V5=0
Step 5. Calculate resistance using
Ohms law.
ohms
Thévenin's equivalent
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