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參數(shù)資料
| 型號(hào)： | L6598D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | HIGH VOLTAGE RESONANT CONTROLLER |
| 中文描述： | 高壓諧振控制器 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大小： | 114K |
| 代理商： | L6598D |
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L6598
8/16
Start Timing Constant) is 0.15 s/
μ
F.
The current I
osc
is fed to the oscillator as shown infig. 5. It is twice mirrored (x4 and x8) generating the triangular
wave on the oscillator capacitor C
f
. Referring to the internal structure of the oscillator (fig.5), a good relationship
to compute an approximate value of the oscillator frequency in normal operation is:
[7]
The degree of approximation depends on the frequency value, but it remains very good in the range from 30kHz
to 100kHz (figg.6-10)
Figure 5. Oscillator Block
f
min
R
fmin
C
f
--------------------
=
X 8
X 4
Iosc
Vth+
Vth-
S
R
Cf
+
+
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