Electrical circuit An electrical circuit is the complete loop through which an electrical current flows. It is made up of a series of electrical components and conductors (e.g., batteries, electrical wires, light bulbs, etc.). The current only flows in an electrical circuit when the path is completely closed, forming a loop. CLASS NOTES-1. Appropriate schematic symbol. Most electrical and electronic equipment is operated by 'plugging' it into an external power source, or by some installed power source (usually a battery). As previously stated, external power sources are usually identified on a schematic diagram by their point of entry into the circuit. Electrical Symbols & Electronic Symbols in PDF. The largest collection of symbols in the network in PDF format. For consultation and interpretation of components, devices and electrical and electronic circuit. ELECTRICAL AND ELECTRONICS DIAGRAMS USAS Y14.15 -1966 USA STANDARD APPROVED includes the following: 15-1 Scope 15-2 Definitions 15-3 General Infonnation 15-4 Single-Line Diagrams, General 15-5 Single-Line Diagrams (Electronics and Communications). Bility of preparing a drafting standard covering 'electrical schematic, wiring. 52 - AC Circuit Breaker 53 - Exciter or DC Generator Relay 54 - High-Speed DC Circuit Breaker 55 - Power Factor Relay 56 - Field Application Relay 59 - Overvoltage Relay 60 - Voltage or Current Balance Relay 62 - Time-Delay Stopping or Opening Relay 63 - Pressure Switch 64 - Ground Detector Relay 65 - Governor 66 – Notching or jogging device. UNDERSTANDING TOYOTA WIRING DIAGRAMS WORKSHEET #2 1. Draw in GREEN the HORN CONTROL circuit from the battery to ground. Draw in RED the HORN circuit from the battery to ground. Draw in BLUE the part of the circuit that is common to both the control and load (horn) circuit.
Here you can download the free lecture Notes of Electric Circuits Pdf Notes – EC Notes Pdf materials with multiple file links to download. The Electric Circuits Notes Pdf – EC Pdf Notes book starts with the topics covering Voltage and Current sources, network reduction techniques, R.M.S and Average values and form factor for different periodic wave forms, series R-L, R-C, R-L-C and parallel combination with variation of various parameters, Faraday’s laws of electromagnetic induction, Basic cutset and Basic Tieset matrices for planar networks, Superposition, Etc.
Electric Circuits Pdf Notes – EC Notes Pdf
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Objective :
This course introduces the basic concepts of circuit analysis which is the foundation for all subjects of the Electrical Engineering discipline. The emphasis of this course is laid on the basic analysis of circuits which includes Single phase circuits, magnetic circuits, theorems, transient analysis and network topology.
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Unit 3
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Unit 4
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Unit 5
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Old Material Links – Electric Circuits Notes Pdf – EC Pdf Notes
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UNIT – I
Introduction to Electrical Circuits
Circuit Concept – R-L-C parameters – Voltage and Current sources – Independent and dependent sources-Source transformation – Voltage – Current relationship for passive elements ( the diff input signals, square , ramp, saw tooth, triangular )
UNIT – II
Kirchhoff’s laws – network reduction techniques – series, parallel, series parallel, star-to-delta or delta-to-star transformation. Nodal analysis, mesh analysis, super node and super mesh for D-C excitation.
UNIT – III
Single Phase A.C Circuits
R.M.S and Average values and form factor for different periodic wave forms, Steady state analysis of R, L and C (in series, parallel and series parallel combinations) with sinusoidal excitation – Concept of Reactance, Impedance, Susceptance and Admittance – Phase and Phase difference – concept of power factor, Real and Reactive powers – J-notation, Complex and Polar forms of representation, Complex power
UNIT – IV
Locus diagrams & Resonance
Locus diagrams – series R-L, R-C, R-L-C and parallel combination with variation of various parameters – Resonance – series, parallel circuits, concept of band width and Q factor.
Electric Circuits Pdf Notes – EC Notes Pdf
UNIT – V
Magnetic Circuits
Magnetic Circuits – Faraday’s laws of electromagnetic induction – concept of self and mutual inductance – dot convention – coefficient of coupling – composite magnetic circuit – Analysis of series and parallel magnetic circuits
UNIT – VI
Network topology:
Definitions – Graph – Tree, Basic cutset and Basic Tieset matrices for planar networks – Loop and Nodal methods of analysis of Networks with independent voltage and current sources – Duality & Dual networks.
UNIT – VII
Network theorems (with D.C)
Tellegen’s, Superposition, Reciprocity, Thevenin’s, Norton’s, Maximum Power Transfer, Millman’s and Compensation theorems for d.c. excitations.
UNIT – VIII
Network theorems (with A.C)
Tellegen’s, Superposition, Reciprocity, Thevenin’s, Norton’s, Maximum Power Transfer, Millman’s and Compensation theorems for A.c. excitations.
TEXT BOOKS: Electric Circuits Pdf Notes – EC Notes Pdf
- Engineering circuit analysis by William hayt and jack e kemmerly McGraw Hill ;
- Circuits & networks by a.sudhakar and shyammohan s pillai TMH
- Electric circuits by a chakravarthy dhanipat rai & sons
REFERENCE BOOKS: Electric Circuits Notes Pdf – EC Pdf Notes
- Network analysis by m e an lakenberg
- Linear circuit analysis (time domain phasor and laplace transform approaches) second ed. By Raymond a decarlo oxford press 2004
- Network theory n c jagan & c lakshiminarayana 2006, BSP.
- Electric circuit theory by k raeshwaran, PE 2004
- Basic circuit analysis by d.r. Cunningham & j.a. stuller, jaico
Note :- These notes are according to the r09 Syllabus book ofJNTUH.In R13 ,8-units of R09 syllabus are combined into 5-units in r13 syllabus.Click here to check all the JNTU Syllabus books
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Electrical Circuit Diagram Pdf Download
Okay, so now that we've gone through the basics, lets try to read a real world schematic of a circuit. so lets dissect this circuit!
*I have numbered each symbol so that we stay on the same page while im describing each part
the first symbol you see is the one with two horizontal lines, one smaller than the other. do you remember what this is? you can always look back at the guide. its a battery. in this case a nine volt battery. if you look back at the polarity chapter you will see that the longer line represents the positive terminal of the battery.
next you can see that there is a line connecting the positive side of the battery to the second part which if you look back at the guide you will find is a switch with two positions: closed (on), and open (off). seems backwards? its not because if you think of that little door like thing on the symbol closing than it would complete the circuit, thus being 'on'.
so when we flick the switch closed where does the electricity go next? that squiggly line is a resistor. this is a symbol you REALLY want to memorize. they are in almost every circuit. basically in just makes sure that the not too much power from the battery is sucked up by the next part by resisting the flow of electricity.
so the final part is the triangle thing. that is a diode (as you can see on that handy chart in this ible). in this case a light emitting diode, or LED. remember LEDs are polarized so when you actually go to make this circuit make sure you put it in right.
finally you can see that the negative side of the LED connects back to the negative battery terminal and the circuit is complete!
THERE IT IS! a flash light! you can now continue on to building the actual thing!
building this circuit will bring its own challenges. so, if you want to be walked through check out my instructable: 'making circuits: the beauty of breadboards'. it will go through the exact steps of building this flashlight, including where to buy parts for cheapest. but also teach you more important knowledge for building all sorts of circuits. (i did actually make this one)
important note, the schematic will not tell you all you need to know. in most there will be text seperate telling you exactly what parts to buy, you cant just throw in any resistor or any capacitor and whatnot. i have the details for the parts in this project in the next instructable mentioned above.
PLEASE RATE AND COMMENT
this is my first ible, i need feedback