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參數(shù)資料
| 型號(hào)： | ART7012D |
| 英文描述： | Hi-Rel DC-DC Rad-Hard Dual Converter in a ART package |
| 中文描述： | 高可靠性的DC - DC抗輻射的藝術(shù)雙包轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 9/13頁(yè) |
| 文件大小： | 93K |
| 代理商： | ART7012D |
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9
ART28XXT Series
Additional Filtering
Figure V. External Input EMI Filter
Although internal filtering is provided at both input and out-
put terminals, some applications may require additional
filtering in order to accommodate system requirements.
While the internal input filter of Figure IV. keeps input ripple
current below 100 mA
, an external filter may be applied
to further attenuate this ripple to a level below the CE03
limits imposed by MIL-STD-461B. Figure V. describes a
filter providing that attenuation.
This circuit shown in Figure V has been constructed on
copper clad board using the materials listed and tested in
the laboratory.
An external filter may also be added to the output where
circuit requirements dictate extremely low output ripple
noise. The output filter described by Figure VI has been
characterized with the ART2815T using the values shown
in the associated material list.
It is important to be aware that when filtering high fre-
quency noise, parasitic circuit elements can easily domi-
nate filter performance. Therefore, it is incumbent on the
designer to exercise care when preparing a circuit layout
for such devices. Wire runs and lengths should be mini-
mized, high frequency loops should be avoided and care-
ful attention paid to the construction details of magnetic
circuit elements. Tight magnetic coupling will improve overall
magnetic performance and reduce stray magnetic fields.
+5 V
5V
Return
+15V
15V
Return
-15V
+5V Out
+5V
Return
+15V
Out
15V
Return
-15V
Out
C1
C2
C3
C4
C5
C6
C7
C8
L1
L2
L4
L3
L1
L2
L3
L4
C 1-C 5
C 6
C 7, C 8 25μF, 50V M39006/22-0568 Ta nta lum.
7 turns A WG 21 bifila r on Ma g Inc . c ore PN YJ -41305-TC or equiva lent.
7 turns A WG 24 trifila r on Ma g Inc . c ore PN YJ -41305-TC or equiva lent.
4 turns A WG 21 on Ma g Inc . c ore PN MPP55048 or equiva lent.
5 turns A WG 21 bifila r on Ma g Inc . c ore PN MPP55048 or equiva lent.
2200pF type C KR c era mic c a pa c itor.
170μF, 15V M39006/22-0514 Ta nta lum.
Figure VI. External Output Filter
Measurement techniques can impose a significant influ-
ence on results. All noise measurements should be mea-
sured with test leads as close to the device output pins as
physically possible. Probe ground leads should be kept to
a minimum length.
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| ARX18553 | Transceiver |
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