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參數(shù)資料
| 型號： | PSL246-9LRD1A |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE L04, MODULE |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 255K |
| 代理商： | PSL246-9LRD1A |
PSL Series Extended Data Sheet
Positive Switching Regulators (Rugged)
REV. APR 26, 2004
Page 3 of 16
Control circuit
Option P
Go–
Vo+
Gi–
Vi+
Input
Filter
Option
L
R (or option i)
D (option)
Io
Vo
I i
Vi
Option
C
Option
C
03021
Option D
+A (option)
–A (option)
29
26
20
23
32
14
17
5
2
8
11
Vt
Vo
Fig. 1
Block diagram
Functional Description
The switching regulators are designed using the buck con-
verter topology. See also:
Technical Information: Topolo-
gies. The input is not electrically isolated from the output.
During the on period of the switching transistor, current is
transferred to the output and energy is stored in the output
choke. During the off period, this energy forces the current
to continue flowing through the output, to the load and back
through the freewheeling diode. Regulation is accom-
plished by varying the on to off duty ratio of the power
switch.
These regulators are ideal for a wide range of applications,
where input to output isolation is not necessary, or where
already provided by an external front end (e.g. a trans-
former with rectifier). To optimise customer’s needs, addi-
tional options and accessories are available.
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