Bog'liq Electric Circuit Analysis by K. S. Suresh Kumar
U is the source
voltage column vector of order n vs ×
1 and
D is the input matrix of order (b -
n +
1)
×
n vs . n vs is the
number of independent voltage sources in the circuit. The matrix product
DU may be replaced by
a column vector which contains the net voltage rise contributed to a mesh by all voltage sources participating in that mesh. The Mesh Resistance Matrix will be symmetric for this kind of circuits. z i z ii th =
sum of all resistances appearing in the mesh
iij i =
negative of sum of all resistances common to
tth th ij th j d j mesh and
mesh
if
voltage source is no
=
0
tt present in the mesh
if
voltage source pro
i j th th 1
vvides voltage rise in the mesh
if
voltage sou
i j th th −
1
rrce provides voltage drop in the mesh
i th
• The mesh analysis formulation results in an equation
ZI =
DU where
Z is the Mesh Resistance
Matrix of a reduced order circuit (if mesh reduction is possible) resulting from deactivating all
independent sources in it.
Z will be symmetric if there are no dependent sources in the circuit.
Dependent sources can make