9014 查看數據表（PDF） - Fairchild Semiconductor
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9014 Datasheet PDF : 16 Pages
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+ vds -
Q1
Vin
D
+ vL -
L2
+
C2
vD
-
RL +
Vout
-
ids(t)
Vin
iL(t)
Iout +
Vout
-
[Ton (t1 < t < t2)]
iL(t)
Iout +
Vin
iD(t)
Vout
-
[Toff (t2 < t < t3)]
Figure 3-3 Buck Converter’s Basic Circuit
vds(t)
OFF ON
ids(t)
Iout
OFF
Vin
ON
vD(t)
Vout
iD(t)
Iout
vL(t) Vout
iL(t)
Vin-Vout
Iout
t0
t1 Ton t2 Toff t3
t
Ts
Figure 3-4. Waveforms of each portion of the Buck Converter
6
Rev. B, July 2000
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