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d i R E t<br />
i<br />
m sin<br />
+ =<br />
ω<br />
d t L L<br />
i<br />
:<br />
t =<br />
0 = 0<br />
<br />
L<br />
R<br />
E<br />
<br />
K<br />
R<br />
L<br />
− ∫ dt<br />
i (t) = ⎡ E<br />
e ⎤<br />
⎢⎣ ∫<br />
m<br />
∫ d t<br />
sinω<br />
t e d t + C<br />
L<br />
⎥⎦<br />
Em<br />
= ( Rsinω<br />
t −ω<br />
Lcosω<br />
t ) + C<br />
2 2 2<br />
R + ω L<br />
−<br />
y = e ∫ P(<br />
x)d<br />
x ⎡ ∫ P(<br />
x)d<br />
x ω LE<br />
: i<br />
⎤<br />
t=0 =<br />
⎢⎣ ∫Q<br />
0(<br />
x<br />
) e C = d2<br />
x + m<br />
C2<br />
⎥⎦<br />
2<br />
R + ω L<br />
R<br />
L<br />
e<br />
−<br />
R<br />
L<br />
t
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