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參數資料
| 型號： | IRMDSS1 |
| 廠商： | International Rectifier |
| 英文描述： | IR1110 Soft Start IC Reference Design Kit For AC Motor Drives, UPS, Welders, and other applications |
| 中文描述： | IR1110軟啟動IC參考設計套件交流電機驅動器，不間斷電源，焊工，和其他應用程序 |
| 文件頁數： | 3/23頁 |
| 文件大?。?/td> | 121K |
| 代理商： | IRMDSS1 |
3
IRMDSS1
the factory-fitted terminal blocks (JP2 and JP3), is 25A at 30
°
C.
Higher output current, to 40A DC continuous, can be obtained by
replacing JP2 and JP3 with the larger optional terminal blocks, (see Bill of
Material), mounted into holes provided on the PCB. For this current, air
flow of approximately 20CFM should be directed across the surface of the
PCB. A small muffin fan is suitable for this purpose.
Output current above 40A can be obtained by removing the JP2 and
JP3 terminal blocks, remounting the SCR snubber components on the
underside of the PCB, and attaching spacers and busbars to the top of the
PCB, as illustrated in Fig. 3.
Table 2 gives typical dc output current ratings for 3-phase operation
with added busbars, for IRKH Addapak modules of different ratings.
The rated continuous dc output current for 3-phase operation with
Module type
DC Current
Total power per
Module
W
75
86
112
149
196
Continuous motor
HP
A
65
90
120
145
180
IRKH41
IRKH56
IRKH71
IRKH91
IRKH105
25
30
50
60
75
TABLE2. OUTPUT CURRENT OF THREE PHASE BRIDGE AT
MAXIMUM OUTPUT VOLTAGE FOR VARIOUS IRKH
SERIES MODULES
Note: 1.
Tcase = 90
°
C max, Tjpk = 115
°
C
2.
SCR conduction assumed to be just continuous. Actual conduction
angle is governed by ac and dc inductance.
3.
Continuous motor HP based on 150% output for 1 minute.
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