1、IntroductionWhy do we need to study circuits?Circuit is the main theoretical basis of electrical engineeringCircuit is the main theoretical basis of electronic science and technologyCircuits are a prerequisite for many specialized coursesCircuits are closely related to real lifeBenjamin Franklin (17
2、06.01.17-1790.04.17)collecting positive and negative charges by flying a kite during a thunderstormCharles-Augustin de Coulomb (1736.06.14-1806.08.23)proposing the earliest law of Electrostatics Coulombs lawAlessandro Antonio Volta(1745.02.18-1827.03.05)inventing voltaic batteryHans Christian Orsted
3、(1777.08.14-1851.03.09)discovering the magnetic effect of currentAndre-Marie Ampere(1775. 01.20-1836.06.10)proposing one of the basic laws in electricity Ampere circuit lawGeorg Simon Ohm(1789. 03.16-1854.07.06)proposing Ohms lawMichael Faraday(1791. 09.22-1867.08.25)proposing law of electromagnetic
4、 inductionGustav Robert Kirchhoff(1824. 03.12-1887.10.17)proposing Kirchhoffs Current Law and Kirchhoffs Voltage LawThomas Alva Edison(1847. 02.11-1931.10.18)inventing electric bulbNikola Tesla(1856. 07.10-1943.01.07)contributing to the large-scale application of alternating current.centralized assumptionone assumptiontwo types of constraintsthree basic conceptstopological constraintscomponent constraintsequivalent transformationcircuit variablelinear superpositionoutline of the course
