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參數(shù)資料
| 型號(hào)： | H48SN28012PRFA |
| 廠商： | Delta Electronics, Inc. |
| 英文描述： | Delphi Series H48SN, 350W HalfBrick Family DC/DC Power Modules: 48V in, 28V/12.5A out |
| 中文描述： | 德爾福系列H48SN，350W的HalfBrick家庭DC / DC電源模塊：在48V電壓，28V/12.5A出 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 436K |
| 代理商： | H48SN28012PRFA |
FEATURES DESCRIPTIONS (CON.)
Output Voltage Adjustment (TRIM)
To increase or decrease the output voltage set point,
the modules may be connected with an external
resistor between the TRIM pin and either the
SENSE(+) or SENSE(-). The TRIM pin should be left
open if this feature is not used.
Figure 18:
Circuit configuration for trim-down (decrease
output voltage)
If the external resistor is connected between the TRIM
and SENSE (-) pins, the output voltage set point
decreases (Fig. 18). The external resistor value
required to obtain a percentage of output voltage
change
△
% is defined as:
100
%
Ex. When Trim-down -60%(28.0V×0.6=16.8V)
Vo
28.0
:=
V
40
:=
Rtrim down=
2
Κ
100
2
0.5
=
K
Figure 19:
Circuit configuration for trim-up (increase output
voltage)
If the external resistor is connected between the TRIM
and SENSE (+) the output voltage set point increases
(Fig. 19). The external resistor value required to obtain
a percentage output voltage change
△
% is defined
as:
Rtrim up=
Vo 100
1.225
%
Ex. When Trim-up +10%(28.0V×1.1=30.8V)
Vo
28.0
:=
V
10
:=
%
+
)
100
2
%
+
%
Κ
Vo
100
+
(
)
1.225
100
2
+
239.429
=
K
The output voltage can be increased by both the remote
sense and the trim, however the maximum increase is
the larger of either the remote sense or the trim, not the
sum of both.
When using remote sense and trim, the output voltage
of the module is usually increased, which increases the
power output of the module with the same output
current.
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
H48SN28012_09262006
10
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| H48SN28012PRFB | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi Series H48SN, 350W HalfBrick Family DC/DC Power Modules: 48V in, 28V/12.5A out |
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