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Tsinghua University

Principles of Electric Circuits

Tsinghua University via XuetangX

Overview

Principles of Electric Circuits (20220214x) is one of the kernel courses in the broad EECS subjects. Almost all the required courses in EECS are based on the concepts learned in this course, so it’s the gateway to a qualified EECS engineer.

 

The main content of this course contains linear and nonlinear resistive circuits, time domain analysis of the dynamic circuits, and the steady state analysis of the dynamic circuits with sinusoidal excitations. Important concepts, e.g. filters, resonance, quiescent point, etc., cutting-edge elements, e.g. MOSFETs and Op Amps, etc., systematic analyzing tools, e.g. node method and phasor method, etc., and real-world engineering applications, e.g. square wave generator and pulse power supply for railgun, etc., will be discussed in depth.

 

In order to facilitate the learning for students with middle school level, we prepare the necessary knowledge for calculus and linear algebra in week 0. With your effort, we can show you the fantastic view of electricity.

 


Syllabus

  • 1 Branch variables, elements, KCL, and KVL
    • 0 Math basics for circuits
    • 1 why learn circuits?
    • 2 circuits
    • 3 branch variables
    • 4 reference direction
    • 5 power
    • resistor
    • 7 independent source
    • simulation1
    • 8 port
    • 9 dependent elements
    • simulation2
    • 10 KCL KVL
    • 11 2B method
  • 2 Equivalent transform for resistors and sources
    • 12 serial parallel resistors
    • 13 bridge
    • 14 Y-Δ transform
    • 15 equivalent resistance of two-terminal network
    • 16 equivalent transform for sources
    • 17 maximum power transfer
  • 3 Op Amps
    • 18 Op Amps
    • 19 Op Amps' model
    • simulation3
    • 20 ideal Op Amp
    • 21 applications of Op Amps
  • 4 MOSFET and two-port network
    • 22 digital system —— introduction
    • 23 digital system——number and logic in digital
    • 24 MOSFET
    • 25 logic gates
    • 26 CMOS
    • 27 two-port network
    • 28 G parameter
    • 29 other parameters
    • 30 equivalent circuits of two-port
    • 31 connection of two-ports
  • 5 Node voltage method and loop current method
    • 32 introduction to systematic function formulating
    • 33 node voltage method
    • 34 loop current method
  • 6 Superposition, substitution and Thevenin
    • 35 superposition theorem
    • 36 Thevenin/Norton theorem
    • 37 applications of Thevenin theorem
    • 38 substitution theorem
  • 7 Nonlinear resistive circuits
    • 39 nonlinear resistor
    • 40 analytical and graphical methods for nonlinear circuits
    • 41 piecewise linear method for nonlinear circuits
    • 42 application of suppose-verify method
    • 43 small signal method for nonlinear circuits
    • 44 small signal models
    • 45 amplifier
  • 8 First-Order Circuits
    • 46 Capacitors and Inductors
    • 47 Dynamic Circuits
    • 48 Initial Values
    • 49 Classical Method for First-Order Circuits
    • 50 Three Elements Method for First-Order Circuits
    • Simulation 4
    • 51 zero input response and zero state response
  • 9 Applications of First-Order Circuits
    • 52 applications of first-order circuits (signal: gate propagation delay)
    • 53 applications of first- order circuits (signal: Op Amp circuits)
    • 54 applications of first-order circuits (energy: rectifying and chopping)
    • unit step function and unit step response
    • unit impulse function
    • unit impulse response
    • convolution integral
  • 10 Second-order Circuits and and State Equations
    • 55 serial RLC second-order circuits
    • 56 parallel RLC second-order circuits
    • 57 intuitive method for second-order circuits
    • 58 applications of second-order circuits
  • 11 Phasor Method and Powers in Sinusoidal Steady State Circuits
    • 59 sine wave
    • 60 power system
    • 61 phasor
    • 62 phasor form of KCL and KVL
    • 63 phasor relationship of RLC
    • 64 phasor method for sinusoidal steady state circuits
    • Simulation 5
    • 65 instantaneous power
    • 66 average power
    • 67 reactive power and apparent power
    • 68 complex power
  • 12 Frequency Characteristics and Resonance
    • 69 frequency characteristics
    • Simulation 6
    • 70 filter
    • 71 applications of frequency characteristics (low-pass characteristics of the small signal amplifi
    • 72 resonance
    • 73 RLC resonance
    • 74 quality factor of serial RLC resonance
    • 75 LC resonance
    • 76 applications of resonance
  • 13 Mutual Inductance and Transformers
    • 77 mutual inductance and mutual voltage
    • 78 dot convention
    • 79 application of mutual inductance (power and signal)
    • 80 decoupling equivalence of mutual inductance
    • 81 air-core transformer
    • 82 unity-coupled transformer
    • 83 ideal transformer
    • Simulation 7
  • 14 Three-phase Circuits and Periodical Nonsinusoidal Steady State Analysis
    • 84 three phase source
    • 85 balanced three phase load and balanced three phase circuit
    • 86 analysis of balanced three phase circuit
    • 87 power in three phase circuits
    • 88 Fourier series for periodical signal
    • 89 effective value and average power for periodical signal
    • 90 steady state analysis of circuits with periodical excitations
  • Final Exam

    Taught by

    Xinjie Yu, Guiping Zhu, Wenjuan Lu, Wei Zhao, Xiucheng Liu, and Yu Shen

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