Bài giảng Electric circuit theory - Chapter I: Basic elements of electrical circuits - Nguyễn Công Phương

Nguy ễn Công Ph ươ ng Electric Circuit Theory Basic Elements of Electrical Circuits Contents I. Basic Elements Of Electrical Circuits II. Basic Laws III. Electrical Circuit Analysis IV. Circuit Theorems V. Active Circuits VI. Capacitor And Inductor VII. First Order Circuits VIII.Second Order Circuits IX. Sinusoidal Steady State Analysis X. AC Power Analysis XI. Three-phase Circuits XII. Magnetically Coupled Circuits XIII.Frequency Response XIV.The Laplace Transform XV. Two-port Networks Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 2 Basic Elements of Electrical Circuits 1. Circuit element 2. Circuit 3. Series circuit & parallel circuit 4. Voltage 5. Current 6. Charge 7. Flux linkage 8. Power 9. Energy 10. Independent sources Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 3 Circuit element Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 4 Circuit Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 5 Series circuit & parallel circuit Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 6 Basic Elements of Electrical Circuits 1. Circuit element 2. Circuit 3. Series circuit & parallel circuit 4. Voltage 5. Current 6. Charge 7. Flux linkage 8. Power 9. Energy 10. Independent sources Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 7 Voltage (1) + V + + v V – Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 8 Voltage (2) + – v –v – + Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 9 Voltage (3) v1 v2 v3 + V Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 10 Voltage (4) v v v h h3 1 2 3 1 h2 Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 11 Current (1) + A i i = 5A i’ = –5A + A Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 12 Current (2) ib i’ b fb h1 f’ v1 v2 b b b f h2 ia ic a a fc a c c Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 13 Basic Elements of Electrical Circuits 1. Circuit element 2. Circuit 3. Series circuit & parallel circuit 4. Voltage 5. Current 6. Charge 7. Flux linkage 8. Power 9. Energy 10. Independent sources Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 14 Charge t qt()= i ()α d α ∫−∞ 0 t =id()αα + id () αα ∫−∞ ∫ 0 t =q + i(α ) d α 0 ∫0 0 q= i(α ) d α 0 ∫−∞ dq( t ) i( t ) = dt Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 15 Flux linkage t λ()t= v () α d α ∫−∞ t =λ + v( α ) d α 0 ∫0 0 λ= λαα( ) d 0 ∫−∞ dλ( t ) u( t ) = dt Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 16 Power i(t) + v(t) – p(t) = v(t)i(t) Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 17 Energy t t wt()= pd ()αα = vid ()() ααα ∫−∞ ∫ −∞ t t =+w pd()αα =+ w vid ()() ααα 0∫0 0 ∫ 0 0 0 w= pd()αα = vid ()() ααα 0 ∫−∞ ∫ −∞ Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 18 Basic Elements of Electrical Circuits 1. Circuit element 2. Circuit 3. Series circuit & parallel circuit 4. Voltage 5. Current 6. Charge 7. Flux linkage 8. Power 9. Energy 10. Independent sources Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 19 Independent voltage source vs(t) i(t) + – + v(t) – v f vs(t) i h Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 20 Independent current source is(t) i(t) + v(t) – v f is(t) Pump i h Basic Elements of Electrical Circuits - sites.google.com/site/ncpdhbkhn 21