Location:Training / Circuit Fundamentals / Circuits (Jiangsu University) / Homogeneity theorem and substitution theorem

01 Circuits and circuit models02

Reference directions of current and voltage03

Electric power and energy04

Resistive elements05

Voltage sources and current sources06

Controlled power supply07

Kirchhoff's law08

Equivalent transformation of simple resistive circuits09

Resistor star connection and triangle Equivalent transformation of connection

10 Equivalent transformation of power supply

11 Diagram of the circuit

12 Number of independent equations of KCL and KVL

13 Branch current method

14 Loop current method (1)

15 Loop current method (2)

16 Node voltage method (1)

17 Node voltage method (2)

18 Superposition theorem

19 Homogeneity theorem and substitution theorem

20 Thevenin’s theorem

21 Norton’s theorem and maximum power transfer theorem

22 Micro course of maximum power transfer theorem (Li Changjie)

23 Tellegen’s theorem

24 Capacitive components and inductive components (1)

25 Capacitive components and inductive components (2)

26 Capacitive components and inductive components (3) Determination of circuit switching law and initial value (1)

27 Determination of circuit switching law and initial value (2) Dynamic response of first-order circuit (1)

28 Dynamic response of first-order circuit (2)

29 Dynamic response of first-order circuit (3) Three-element method of first-order circuit (1)

30 Three-element method of first-order circuit (2)

31 Three-element method of first-order circuit Element method (3) Step response of first-order dynamic circuit

32 Dynamic response of second-order circuit (1)

33 Dynamic response of second-order circuit (2)

34 Sine quantity and its phasor representation (1)

35 Sine quantity and its phase Quantity representation (2) Phasor form of circuit law

36 Complex impedance and complex admittance (1)

37 Complex impedance and complex admittance (2)

38 Analysis of sinusoidal steady-state circuit (1)

39 Analysis of sinusoidal steady-state circuit (2 )

40 Power of sinusoidal steady-state circuit (1)

41 Power of sinusoidal steady-state circuit (2)

42 Power of sinusoidal steady-state circuit (3) Improvement of power factor

43 Power of sinusoidal steady-state circuit (4) Maximum power transmission

44 Series connection Resonant circuit (1)

45 Series resonant circuit (2)

46 Series resonant circuit (3) Parallel resonant circuit (1)

47 Parallel resonant circuit (2) Series and parallel resonant circuit

48 Basic concepts of mutual inductance circuits (1)

49 Basics of mutual inductance circuits Concept (2)

50 Calculation of mutual inductance circuit (1)

51 Calculation of mutual inductance circuit (2)

52 Air-core transformer

53 Ideal transformer

54 Basic concept of three-phase circuit (1)

55 Basic concept of three-phase circuit (2) Symmetrical three-phase circuit Calculation of (1)

56 Calculation of symmetrical three-phase circuit (2)

57 Calculation of symmetrical three-phase circuit (3) Asymmetrical three-phase circuit

58 Power and measurement of three-phase circuit (1)

59 Power and measurement of three-phase circuit ( 2)

60 Harmonic analysis of non-sinusoidal periodic signals, effective value and average value

61 Power of non-sinusoidal periodic current circuit, calculation of non-sinusoidal periodic current circuit

62 Introduction to filters

63 Laplace transform, inverse transform and dynamic circuit complex Frequency domain model

64 Complex frequency domain analysis of dynamic circuits

65 Network function (1)

66 Network function (2)

67 Cut set

68 Correlation matrix, loop matrix, cut set matrix

69 Matrix form of loop current

equation 70 Matrix of node voltage equation Form

71 Matrix form of cut set voltage equation

72 State equation (1)

73 State equation (2)

74 Two-port network and its parameter equations (1)

75 Two-port network and its parameter equations (2)

76 Two-port network and its parameters Equation (3) Equivalent circuit of two-port network (1)

77 Equivalent circuit of two-port network (2) Connection of two-port network