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강의자료실 - 강의자료실

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Fluid System Design:

(Electric Circuit Analysis)

Department of Mechanical Engineering Chosun University

Yang Jun Kang, Ph.D.

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engineering-and-computer-science/6-002-circuits-and-electronics-spring-2007 “OCW.MIT.EDU”: MIT Open Courseware

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1. Lumped parameter model

“ We could solve it with the hard way”

“Maxwell equations”

Electric field  D=ε

0E Magnetic field  B=μ0H

dA

n

B

A B

⋅

=

∫

φ

dV

q

V

∫

=

ρ

E

D

=

ε

0

KVL KCL

Volt

Current

2/31

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1. Lumped parameter model

Quantitative analysis

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1. Lumped parameter model

“Ohm’s law”

4/31

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1. Lumped parameter model

“R” is a lumped element abstraction for the bulb

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2. Node method

Demonstration

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3. 1st Order System

∫

idt

dt

dv

C

i

=

15/31

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4. 2nd Order System 24/31 ) ( ) ( 0 0 0 0 0 t j t j cV je e V dt d c dt dv c i = = ω = ω ω 0 0

ω

cV

i

=

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