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Control Basics - MAELabs UCSD

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xc +<br />

-<br />

e<br />

Or equivalently:<br />

xc +<br />

-<br />

K<br />

System transfer function<br />

F = K mI = K m<br />

!x = 1<br />

ms<br />

V 1/R I +<br />

Km<br />

+ - 1+s(L /R)<br />

-<br />

e<br />

K<br />

V 1/R<br />

1+s(L /R)<br />

I<br />

1<br />

( R + Ls)<br />

V ! Ke !x ( )<br />

( F ! c!x ! kx)<br />

= 1<br />

ms K "<br />

$ m<br />

#<br />

MAE 156A<br />

1<br />

( R + Ls)<br />

V ! Ke !x<br />

( = 1<br />

ms K 1<br />

R<br />

m<br />

1+ L<br />

R s<br />

V ! c +<br />

" %<br />

$ '<br />

# &<br />

K "<br />

$<br />

"<br />

$<br />

mKe $<br />

$<br />

# R + Ls<br />

$<br />

#<br />

Ke<br />

Km<br />

+<br />

k<br />

+<br />

( )<br />

!F<br />

c<br />

1<br />

.<br />

x 1<br />

ms s<br />

F 1<br />

ms!+(c + KmKe )s+k<br />

(R+sL)<br />

( ) ! c!x ! kx<br />

%<br />

% '<br />

'<br />

!x ! kx'<br />

& '<br />

&<br />

x<br />

%<br />

'<br />

&<br />

x

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