Authors: Zhang Yiliang, Zhou, editor.
Publishing House: Tsinghua University Publishing House.
Release time: 20 10- 1- 1
Page number: 16 Page number
Industrial and commercial bank number: 97873022006 1 1
Pricing: 35.00 "Electrical and Electronics" is carefully compiled according to the "Basic Teaching Requirements for Electronic Technology in Higher Industrial Schools" issued by the Ministry of Education (formerly the State Education Commission) 1995. Based on the principles of simplicity, popularization, advanced and practicality,
Each chapter of this book has a summary and exercises, and some answers to the exercises and self-test papers are attached to facilitate teachers' teaching and students' self-study.
This book can be used as a teaching material for electrical and electronic technology courses in colleges and adult higher education. The teaching hours are 60 ~ 80 hours. This book can also be used for self-study and reference by engineers and technicians. Chapter 1 Basic concepts, laws and analysis methods of circuits
Chapter II Circuit Transient Analysis
Chapter III Analysis of Sinusoidal Steady-state Circuits
Chapter 4 Three-phase Circuit
Chapter 5 Semiconductor Diodes and Basic Circuits
Chapter 6 Transistors and Basic Amplification Circuits
Transistor is a solid semiconductor device, which can be used for detection, rectification, amplification, switching, voltage stabilization, signal modulation and other functions. As a variable switch, the transistor controls the outflow current according to the input voltage, so it can be used as a current switch. Different from general mechanical switches (such as relays and switches), the transistor is controlled by electrical signals, and the switching speed can be very fast, and the switching speed in the laboratory can reach 100GHz or above.
Chapter VII Integrated Circuit Operational Amplifier and Its Application
Chapter VIII Basic Knowledge of Digital Logic Circuits
Chapter 9 Logic Algebra and Logic Function
Logic algebra is the mathematical basis for analyzing and designing logic circuits. Logical algebra was founded by British scientist george boole, so it is also called Boolean algebra.
Logic function is the characteristic and description tool of digital circuit (a kind of switching circuit). Input and output are high and low levels, which can be expressed by binary constant (0, 1). The relationship between input and output is a logical causal relationship. Analog concept of ordinary function, digital circuit can be described by mathematical tools of logic function.
Chapter 10 combinational logic circuit
Combinatorial logic circuit means that at any time, the output state only depends on the combination of simultaneous input States, and has nothing to do with the previous state of the circuit and other States. Its logical functions are as follows:
Lie =f(A 1, A2, A3…An)(I = 1, 2,3 … m)
Where A 1~An is the input variable and Li is the output variable.
The characteristics of combinational logic circuits can be summarized as follows:
① There is no feedback delay channel between input and output;
② There are no memory cells in the circuit.
For the first logic expression formula or logic circuit, its truth table may be unique, but its corresponding logic circuit or logic expression may have multiple implementations. Therefore, the truth table corresponding to a specific logic problem is unique, but there are various logic circuits to realize it. In practical design work, if some gate circuits cannot be obtained for some reasons, the circuit can be changed by changing the logic expression, so that other devices can be used to replace the device. At the same time, in order to make the design of logic circuits more concise, it is necessary to simplify logic expressions by various methods. Combinatorial circuits can be described by a set of logical expressions. Designing combinational circuits is to realize logical expressions. It is required to make the circuit simple, economical and reliable on the basis of meeting the logic function and technical requirements. There are various ways to realize the combinational logic function, which can use basic gate circuits or medium and large scale integrated circuits.
Chapter 1 1 sequential logic circuit
Answers to some exercises
appendix
refer to