電工基礎(chǔ)教學大綱（Electrical basic teaching program）

1、電工基礎(chǔ)教學大綱（Electrical basic teaching program）Documents from the network, I collected, finishing, and if there are omissions, errors, but also please correct me!Electrical basic teaching programI. instructions1, the nature and content of the courseThis course is the basic course of electrical maintenan

2、ce specialty in Vocational High SchoolThe main contents include the basic concept; DC circuit and the basic rule, simple circuit analysis, complex circuit and magnetic circuit, magnetic field, electromagnetic induction, the basic concept of the alternating current, AC circuit, three-phase AC circuit

3、, crystal diode and rectifier filter circuit, transistor and amplifier circuit2, the main tasks and requirements of the courseThe task of this course is to provide students with the necessary basic knowledge of electrical theory, and to provide the necessary basic theoretical knowledge for the pract

4、ical work of specialized coursesThrough teaching, experiment and other teaching methods, students can master the basic knowledge and basic analysis methods of the circuit on the basis of understanding the basic concepts, and have certain analytical ability, computational ability and experimental ski

5、lls3, teaching should pay attention to the problem(1) to strengthen the ability to train, especially to train students ability to analyze problems, is very practical(2) strengthen the teaching of combining theory with practiceTwo hours allocation tableChapter contenttotal hoursTeaching hoursChapter

6、1 the basic concepts and basic rules of DC circuitThe basic concept of the 1-1 circuitThe 1-2 charge and currentThe 1-3 potential and voltageThe 1-4 electric potentialThe resistance of 1-5The 1-6 Ohms law1-7, electric power and electric powerThe 1-8 Joule lawSummaryUebungSixtySixSixSixSixEightSixSix

7、SixFourSixThe second chapter is the calculation of simple DC circuitThe 2-1 series resistanceParallel, 2-2 resistanceThe resistance of hybrid 2-3Calculation of the potential in the 2-4 circuit.The equilibrium condition of 2-5 BridgeThe 2-6 capacitorSummaryUebungFifty-fourSixSixEightEightEightEightTw

8、oFourThe third chapter is the analysis of complex direct current circuit3-1, Kirchhoffs lawThe application of Kirchhoffs law 3-2The 3-3 superposition principle3-4, Thevenins theorem and Nortons theoremSummaryUebungForty-twoEightTenSixEightFourSixThe fourth chapter is magnetic field and magnetic circ

9、uitThe 4-1 magnetic fieldThe 4-2 magnetic flux and magnetic inductionThe 4-3 permeability and magnetic field strengthThe effect of magnetic field on the current 4-4The 4-5 magnetization and magnetic materialsSummaryUebungForty-eightSixEightEightEightEightFourSixThe fifth chapter electromagnetic indu

10、ction5-1s law of electromagnetic induction.5-2, electromotive force and self inductance coefficientThe 5-3 transformer5-4, eddy currentThe transient process of RL circuit 5-5.SummaryUebungFortyEightSixSixFourSixFourSixThe sixth chapter is the basic concept of sinusoidal alternating currentThe 6-1 pr

11、oduces sinusoidal alternating current electromotive forceThree elements, 6-2 alternating currentThe effective value of AC 6-3.Said method, 6-4 alternating currentSummaryUebungForty-twoSixEightSixTenFourEightThe seventh chapter sinusoidal AC circuitThe 7-1 pure resistance circuitThe 7-2 pure inductan

12、ce circuitThe 7-3 pure capacitance circuitThe 7-4 series circuit, resistor, capacitor and inductorThe 7-5 series resonant circuitThe 7-6 parallel circuit resistance, inductance and capacitance.In parallel, 7-7 inductive load and capacitive loadThe power 7-8 AC circuitThe actual components, 7-9 in AC

13、 circuitsSummaryUebungSixty-twoFourSixSixEightEightEightSixFourSixTwoFourThe eighth chapter three-phase sinusoidal alternating currentThe 8-1 generates three-phase sinusoidal AC EMFThe 8-2 three-phase power supply winding connectionThe 8-3 three-phase load connected in starThe 8-4 three-phase load d

14、elta connectionThe power of three-phase circuits 8-5SummaryUebungSixty-twoEightTenTwelveTenEightSixEightThe ninth chapter crystal diode and rectifier filter circuitBasic knowledge of semiconductor, 9-1Section 9-2 crystal diodeSection 9-3 rectifier circuitThe 9-4 filter circuitThe 9-5 silicon zener d

15、iode and its applicationSummaryUebungFifty-sixEightEightTenTenTenFourSixThe tenth chapter transistor and amplifier circuitThe 10-1 transistorThe 10-2 transistor low-frequency voltage amplification circuitSection 10-3 amplifiersThe introduction of 10-4 thyristorSummaryUebungSeventy-fourSixteenSixteen

16、SixteenFourteenFourEightTotalFive hundred and fortyFive hundred and fortyThree, the course content and requirementsThe first chapter is the basic concept of DC circuit and the basic ruleTeaching requirements:Definition and orientation of the 1. units, understand and be familiar with the basic physic

17、al quantity in the circuit2. familiar with the actual reference direction direction3. master of Ohms law4. familiar with electric power, electric power conceptContent of courses：The basic concept of the 1-1 circuitPart one circuitTwo, circuit diagramThe 1-2 charge and currentA charge, and their inte

18、ractionsTwo, and the direction of currentThree, the strength of the currentFour, current densityThe 1-3 potential and voltageA voltageTwo, potentialThree, the direction of the voltageThe 1-4 electric potentialA, the electromotive forceTwo, the electromotive force and the power supply voltageThree di

19、fferent points, EMF and voltageThe resistance of 1-5A, resistanceTwo, the relationship between resistance and temperatureThe 1-6 Ohms lawA part of the circuit, the Ohms lawTwo, the whole circuit Ohms lawThree, the state of the circuit1-7, electric power and electric powerAn electric powerTwo, the el

20、ectric powerThe 1-8 Joule lawA, Joule lawTwo, load ratingsThe second chapter is the calculation of DC circuitTeaching requirements:1. familiar with the basic characteristics of series and parallel circuits, the calculation method of mixed circuit simple calculation analysis2. familiar with the equil

21、ibrium conditions of the bridge3. familiar with the basic concepts, and a capacitor in series and parallel knowledge4. familiar with the discharge process of the capacitor, understand the transient process of RC circuit5. understand the commonly used capacitorContent of courses：The resistance of the

22、 2-1 series circuit.A resistor in series,Two the nature of the series circuitThe 2-2 parallel circuit resistanceA parallel resistanceTwo, the nature of parallel circuitsA hybrid circuit, 2-3 resistanceMixed circuitTwo. Simplification of the mixed circuitThree, mixed circuit calculation exampleFour,

23、the calculation of mixed circuitCalculation of the bit representation of 2-4 circuitI. selection of zero potentialTwo. Calculation of potentialThree. The calculation method of voltage between two points in the circuitThe equilibrium condition of 2-5 BridgeBridge circuitTwo. Bridge balance conditionT

24、hree. Examples of bridge circuit applicationsThe 2-6 capacitorCapacitors and capacitorsTwo. Kinds and main parameters of capacitorThree. Series and parallel connection of capacitorFour. Charging and discharging of capacitorThe third chapter is the analysis of complex direct current circuitTeaching r

25、equirements:1. master Kirchhoffs law2. master the superposition principle and Thevenin theorem3. master branch current method and node voltage methodContent of courses：3-1, Kirchhoffs lawBranch, node and loopTwo, Kirchhoffs first lawThree, Kirchhoffs second lawThe application of Kirchhoffs law, 3-2B

26、ranch current methodTwo node voltage methodThe 3-3 superposition principleSuperposition principle3-4, Thevenins theorem and Nortons theoremA, Thevenins theoremTwo Norton theoremThe fourth chapter is magnetic field and magnetic circuitTeaching requirements:1. familiar with the significance and units

27、of the basic physical quantities of a magnetic field2. understand the magnetization and classification of ferromagnetic materials3. master the effect of the magnetic field on the current4. understand the concept of magnetomotive force and magnetic resistance, and grasp the ohm theorem in magnetic ci

28、rcuitContent of courses：The 4-1 magnetic fieldI. Basic Phenomena of magnetismTwo, magnetic field and magnetic linesThree 、 current magnetic fieldThe 4-2 magnetic flux and magnetic inductionMagnetic fluxTwo, magnetic induction intensityThe 4-3 permeability and magnetic field strengthPermeabilityTwo,

29、magnetic field strengthThree. The magnetic field produced by the electrified conductorThe effect of magnetic field on the current 4-4First, the magnetic field on the role of current carrying straight wireTwo, the magnetic field on the action of the electric coilThe 4-5 magnetization and magnetic mat

30、erialsI. magnetization of ferromagnetic substancesTwo hysteresis loopThe fifth chapter electromagnetic inductionTeaching requirements:1. understand the phenomenon of electromagnetic induction, grasp the electromagnetic induction current conditions, master Lenzs law and the right rule2. understand th

31、e concept of induction electromotive force, master the law of electromagnetic induction and the calculation formula of induction electromotive force3. understand the concepts of inductance coefficient and mutual inductance coefficient, and understand the phenomena of self inductance and mutual induc

32、tance and their laws4. understand the energy storage characteristics of inductors5. understand the concept of the same end of the mutual inductance coil6. to understand the change of voltage and current with time in the transient process of RL circuit, the emphasis is on the understanding of the phy

33、sical concept, and it can determine the three elements of the time series, the initial value and the steady-state valueContent of courses：5-1s law of electromagnetic induction.The induced electromotive force, a straight conductor inThe induced electromotive force in the coil, two5-2, electromotive f

34、orce and self inductance coefficientA self inductance phenomenonTwo, self inductance coefficientThree, the coil inductance calculationFour, self induced electromotive forceFive, the magnetic energy in the coil inductanceThe 5-3 transformerFirst, mutual inductance phenomenonTwo, the mutual inductance

35、 coefficientThree, transformer electromotive forceFour, mutual inductor isonym end5-4, eddy currentThe transient process of RL circuit 5-5.RL, a DC power supply circuitTwo short circuit and RL circuitThree, RL circuit with current disconnectThe sixth chapter introduces the basic concept of the sinus

36、oidal alternating currentTeaching requirements:1. understand the sinusoidal AC power generation, a deep understanding of the characteristics of sinusoidal alternating current, especially the three elements and the concept of phase difference2. to master a variety of alternating current method and th

37、e relationship betweenContent of courses：The 6-1 produces sinusoidal alternating current electromotive forceThree elements, 6-2 alternating currentA, period, frequency, and angle frequencyTwo, and the maximum instantaneous valueThree, the initial phase angleFour, the difference of phase alternating

38、currentThe effective value of AC 6-3.A concept, effective valueTwo, to determine the effective valueThree, the effective value and the maximum valueThe average value of four, alternating currentSaid method, 6-4 alternating currentFirst, analytical methodTwo, curve methodThree, the rotation vector al

39、gorithmFour, with the same frequency sinusoidal alternating current addition and subtractionThe seventh chapter sinusoidal AC circuitTeaching requirements:1. will use the vector analysis and calculation of simple AC circuit2. master series, and the conditions and characteristics of the resonant circ

40、uit, the resonant circuit and the relationship between selectivity and quality factorNo active power, reactive power, 3. AC circuit as clear understanding of the meaning of raising power factor in the concept of power and power factor, and grasp the method of improving power factor for shunt capacit

41、or4. understand the actual situation of resistance, inductance and capacitance of the three components in AC circuitContent of courses：The 7-1 pure resistance circuitThe relationship between voltage and currentTwo, powerThe 7-2 pure inductance circuitThe phase relationship, current and voltageThe re

42、lationship between the number of two, the current and voltageThree, power circuitThe 7-3 pure capacitance circuitThe phase relationship, current and voltageThe relationship between the number of two, the current and voltageThree, power circuitThe 7-4 series circuit, resistor, capacitor and inductorT

43、he phase relationship, current and voltageTwo, the quantitative relationship between voltageTwo special cases of three, R-L-C series circuitThe 7-5 series resonant circuitA series resonant conditionTwo, the series resonant circuitThree, the series resonant circuitThe 7-6 parallel circuit resistance,

44、 inductance and capacitance.Phase relation between current and voltageTwo, the relationship between the current and voltageTwo special cases of three and R-L-C parallel circuitsFour and R-L-C parallel resonant circuitLoad and parallel circuit capacitance, 7-7 sensibilityFirst, the relationship betwe

45、en current and voltageTwo parallel resonanceThe power 7-8 AC circuitFirst, the concept of power factorTwo, the significance of increasing the powerThree, improve the power factor methodThe actual components, 7-9 in AC circuitsResistorTwo 、 inductance coilThree. CapacitorThe eighth chapter three-phas

46、e sinusoidal AC circuitTeaching requirements:1. understand the generation and characteristics of three-phase AC power supply2. grasp the relationship between the line voltage and the phase voltage of three-phase four wire system3. Grasp the relation between the phase voltage of load and line voltage

47、, load phase current and phase current when three-phase symmetrical load, star connection method and triangle connection method, and understand the role of the central line4. master the calculation method of voltage, current and power of symmetrical three-phase circuit5. will determine the connectio

48、n method of three-phase loadContent of courses：Have the 8-1 three-phase sine forceThe 8-2 three-phase power supply winding connectionFirst, the star connection of the three-phase power windingTwo 、 three-phase connection of three-phase power supply windingThe 8-3 three-phase load connected in starOn

49、e, three-phase load asymmetryTwo 、 three-phase load symmetryThe 8-4 three-phase load delta connectionThe power of three-phase circuits 8-5The ninth chapter: crystal diode and rectifier filter circuitTeaching requirements:1. Understanding the structure, working principle, characteristics and main par

50、ameters of crystal diode2. master common diode identification and simple test, understand the single-phase and three-phase rectifier circuit, filter circuit and voltage regulator circuit working principle and related analysis methodsContent of courses：Basic knowledge of semiconductor, 9-1Semiconductor and its characteristicsTwo, P type semiconductor and N semiconductorThree PN junction and its characteristicsSection 9-2 crystal diodeFirst, the structure of crystal diodeTwo. Volt ampere characteristics of crystal diodeThree. Main parameters of crystal diodeFour 、 mo