08-Maximum Power Transfer Thm

# 08-Maximum Power Transfer Thm - Maximum Power Transfer...

This preview shows pages 1–6. Sign up to view the full content.

Maximum Power Transfer Theorem © Fred Terry all, 008 Fall, 2008 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Motivation • All “Real” Sources Have Output Resistance hat Is the Maximum Amount of Power What Is the Maximum Amount of Power That Can Be Delivered From a Real Source A Load? to A Load? +- V s R s R L 2
aximum Power Transfer Maximum Power Transfer Theorem • We can reduce any linear circuit with 2 output terminals to a Thevenin (or Norton Equivalent) we connect a resistive load R maximum If we connect a resistive load, R L , maximum power is delivered to the load when =R =R R L R TH R eq • At this condition, 2 2 44 NN TH L H RI V P R ⎡⎤ == ⎢⎥ 3 TH ⎣⎦

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Proof i a R TH + - V R ( ) 2 TH TH L L L iV R R PV a b i i Ri i R =+ =• = = L 2 2 TH LL L L VR P R = b ( ) TH L RR + L R ⎛⎞ Maximize s R () 2 23 2 1 0 2 TH L TH L TH L H L L PR V R R R = =− ⎢⎥ ⎜⎟ ++ ⎝⎠ = + vs. R L ( ) 22 02 TH LT H R V →+ →= ⎡⎤ 4 ( ) max 2 4 H TH TH TH L TH TH TH pP R = = == + ⎣⎦
Intuitive • If R L

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 10

08-Maximum Power Transfer Thm - Maximum Power Transfer...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online