tailieunhanh - Circuits & Electronics P2

CIRCUITS AND ELECTRONICS Basic Circuit Analysis Method (KVL and KCL method) Fall 2000 Lecture 2 1 .Review Lumped Matter Discipline LMD: Constraints we impose on ourselves to simplify our analysis ∂φ B =0 ∂t ∂q =0 ∂t Outside elements Inside elements wires resistors sources Allows us to create the lumped circuit abstraction Fall 2000 Lecture 2 2 .Review LMD allows us to create the lumped circuit abstraction i + v - Lumped circuit element power consumed by element = vi Fall 2000 Lecture 2 3 .Review Review Maxwell’s equations simplify to algebraic KVL and KCL under LMD! KVL: ∑ jν j = 0 loop KCL: ∑jij = 0 node Fall 2000 Lecture 2 4 .Review a R1 R4 + – b R2 R3 d R5 c DEMO vca + vab + vbc = 0 ica + ida + iba = 0 KVL KCL Fall. | CIRCUITS AND ELECTRONICS Basic Circuit Analysis Method KVL and KCL method Fall 2000 Lecture 2 1 Review Lumped Matter Discipline LMD Constraints we impose on ourselves to simplify our analysis drB _ 0 Outside elements dt ddL 0 d Inside elements wires resistors sources Allows us to create the lumped circuit abstraction Fall 2000 Lecture 2 2 Review LMD allows us to create the lumped circuit abstraction i---- O- V - o- Lumped circuit element power consumed by element vi Fall 2000 Lecture 2