1. The document discusses methods of circuit analysis including mesh analysis and supermesh analysis. Mesh analysis involves identifying meshes, labeling mesh currents, and applying Kirchhoff's voltage law to write equations for each mesh. Supermesh analysis combines meshes connected by a current source into a larger supermesh.
2. Mesh and supermesh analysis are illustrated through an example circuit with 4 meshes. Mesh equations are written and solved to find the 4 unknown mesh currents.
3. The key aspects of supermesh analysis are that the current source provides an additional equation but is removed from the circuit, and multiple current sources combine meshes into a larger supermesh.
A minimum spanning tree (MST) or minimum weight spanning tree is a subset of the edges of a connected, edge-weighted undirected graph that connects all the vertices together, without any cycles and with the minimum possible total edge weight.
A minimum spanning tree (MST) or minimum weight spanning tree is a subset of the edges of a connected, edge-weighted undirected graph that connects all the vertices together, without any cycles and with the minimum possible total edge weight.
Root locus is a graphical representation of the closed-loop poles as a system parameter is varied.
It can be used to describe qualitatively the performance of a system as various parameters are changed.
It gives graphic representation of a system’s transient response and also stability.
We can see the range of stability, instability, and the conditions that cause a system to break into oscillation.
Part of Lecture Series on Automatic Control Systems delivered by me to Final year Diploma in Engg. Students. Easy language and Equally useful for higher level.
Study of a Gear-Rack and links System: Equations, configuration and CAD designPietro Galli
The study dealt with the Designing of a mechanism form a starting configuration. Development of equations (Study of the motion and of the velocities), CAD files and engineer drawings (Using Solidworks)
Root locus is a graphical representation of the closed-loop poles as a system parameter is varied.
It can be used to describe qualitatively the performance of a system as various parameters are changed.
It gives graphic representation of a system’s transient response and also stability.
We can see the range of stability, instability, and the conditions that cause a system to break into oscillation.
Part of Lecture Series on Automatic Control Systems delivered by me to Final year Diploma in Engg. Students. Easy language and Equally useful for higher level.
Study of a Gear-Rack and links System: Equations, configuration and CAD designPietro Galli
The study dealt with the Designing of a mechanism form a starting configuration. Development of equations (Study of the motion and of the velocities), CAD files and engineer drawings (Using Solidworks)
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In a May 9, 2024 paper, Juri Opitz from the University of Zurich, along with Shira Wein and Nathan Schneider form Georgetown University, discussed the importance of linguistic expertise in natural language processing (NLP) in an era dominated by large language models (LLMs).
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हम आग्रह करते हैं कि जो भी सत्ता में आए, वह संविधान का पालन करे, उसकी रक्षा करे और उसे बनाए रखे।" प्रस्ताव में कुल तीन प्रमुख हस्तक्षेप और उनके तंत्र भी प्रस्तुत किए गए। पहला हस्तक्षेप स्वतंत्र मीडिया को प्रोत्साहित करके, वास्तविकता पर आधारित काउंटर नैरेटिव का निर्माण करके और सत्तारूढ़ सरकार द्वारा नियोजित मनोवैज्ञानिक हेरफेर की रणनीति का मुकाबला करके लोगों द्वारा निर्धारित कथा को बनाए रखना और उस पर कार्यकरना था।
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‘वोटर्स विल मस्ट प्रीवेल’ (मतदाताओं को जीतना होगा) अभियान द्वारा जारी हेल्पलाइन नंबर, 4 जून को सुबह 7 बजे से दोपहर 12 बजे तक मतगणना प्रक्रिया में कहीं भी किसी भी तरह के उल्लंघन की रिपोर्ट करने के लिए खुला रहेगा।
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3. Process of Mesh Analysis
1. Identify every mesh in the circuit.
2. Label each mesh with a mesh current.
It is recommended that all mesh
currents be labeled in the same direction
(either clockwise (CW) or counter-
clockwise (CCW)).
4. Mesh Analysis (Cont’d)
4. Within a particular mesh of interest, use
Ohm’s law to express the voltage across
any element within that mesh as the
difference between the two mesh
currents of continuous meshes shared by
the element times the element impedance.
The current within the mesh of interest is
always considered to be larger than the
rest of the mesh currents.
5. Mesh Analysis (Cont’d)
5. Apply KVL to sum all voltages in that
mesh of interest. The resulting algebraic
equation (called mesh equation) has all
mesh currents as its unknowns.
6. Repeat steps 4 and 5 until all meshes are
accounted for. The number of equations
must be equal to the number of mesh
currents.
6. Mesh Analysis (Cont’d)
8. If a current source exists only in one
mesh, the mesh current is equal to the
source current, and KVL is not applied to
this mesh.
9. Solve the resulting simultaneous mesh
equations to obtain the values of the
unknown mesh currents.
10. Use the values of mesh currents above
to find voltages and/or currents
throughout the rest of the circuit.
8. 8
Example
Apply KVL to each mesh
2 1 7 5 0sV v v v− + + − =
2 6 7 0v v v− − =
15 3 0sv v v+ + =
Mesh 1:
Mesh 2:
Mesh 3:
14 8 6 0sv v V v+ − + =Mesh 4:
9. 9
2 1 1 1 2 7 1 3 5( ) ( ) 0sV i R i i R i i R− + + − + − =
2 2 2 4 6 2 1 7( ) ( ) 0i R i i R i i R+ − + − =
13 1 5 3 3( ) 0si i R V i R− + + =
Mesh 1:
Mesh 2:
Mesh 3:
14 4 4 8 4 2 6( ) 0si R i R V i i R+ − + − =Mesh 4:
Mesh 1:
Mesh 2:
Mesh 3:
Mesh 4:
21 5 7 1 7 2 5 3( ) sR R R i R i R i V+ + − − =
7 1 2 6 7 2 6 4( ) 0R i R R R i R i− + + + − =
15 1 3 5 3( ) sR i R R i V− + + = −
16 2 4 6 8 4( ) sR i R R R i V− + + + =
10. 10
Mesh 1:
Mesh 2:
Mesh 3:
Mesh 4:
21 5 7 1 7 2 5 3( ) sR R R i R i R i V+ + − − =
7 1 2 6 7 2 6 4( ) 0R i R R R i R i− + + + − =
15 1 3 5 3( ) sR i R R i V− + + = −
16 2 4 6 8 4( ) sR i R R R i V− + + + =
2
1
1
1 5 7 7 5 1
7 2 6 7 6 2
5 3 5 3
6 4 6 8 4
0
00
0 0
0 0
s
s
s
VR R R R R i
R R R R R i
VR R R i
R R R R i V
+ + − −
÷ ÷ ÷
− + + − ÷ ÷ ÷= ÷ ÷ ÷ −− +
÷ ÷ ÷
÷− + +
11. Supermesh
If a current source exists between two
contiguous meshes, the two meshes are
collapsed into a single mesh called a
supermesh, and the current source and any
elements connected in series with it removed.
However, KVL must still be satisfied within a
supermesh using the old mesh current labels.
Also, the removal of the current source
provides another mesh equation.
13. Properties of a Supermesh
1. The current is not completely ignored
provides the constraint equation necessary to
solve for the mesh current.
1. Several current sources in adjacency form a
bigger supermesh.
14. 6
20146
21
21
−=−
=+
ii
ii
If a supermesh consists of two
meshes, two equations are needed;
one is obtained using KVL and Ohm’s
law to the supermesh and the other
is obtained by relation regulated
due to the current source.
Example
15. Similarly, a supermesh formed from three
meshes needs three equations: one is from
the supermesh and the other two equations
are obtained from the two current sources.