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參數(shù)資料
| 型號(hào)： | BQ1001-7R |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 82 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE Q01, MODULE |
| 文件頁(yè)數(shù)： | 21/25頁(yè) |
| 文件大?。?/td> | 747K |
| 代理商： | BQ1001-7R |
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Cassette Style
DC-DC Converters
Q Series
Edition 5/5.2000
5/25
Functional Description
The units are designed as forward converters using primary
and secondary control circuits in hybrid technology. The
switching frequency is approximately 200 kHz under
nominal operating conditions. The built-in high efficient
input filter together with a minimum input capacitance
generate very low inrush currents with short duration. After
transformer isolation and rectification, the output filter re-
duces ripple and noise to a minimum without compromise
to the dynamic ability. The output voltage is fed back to the
secondary control circuit via the sense lines. The resultant
error signal is sent to the primary control circuit via a signal
transformer.
Double output modules have their voltage regulation of out-
put 2 relying on the close magnetic coupling of the trans-
former and the output inductor together with the circuits
symmetry. The current limitation is located at the primary
side, thus limiting the total output current in overload condi-
tions. This allows flex power operation of each output for
unsymmetrical loads in the range from 10...90% of the total
output power. In applications with large dynamic load chan-
ges it is recommended to connect such load to output 1
only. Output 1 and output 2 can either be series- or parallel-
connected (see:
Electrical Output Data).
P (option)
28
30
32
26
Vi–
i
Vi+
Primary
Control Circuit
Output
Control
Circuit
Output
Filter
Isolation
Cy
20
24
22
18
16
14
12
4
6
8
10
Overvoltage
Controller
Out OK+
Out OK–
T
R
S–
S+
Vo1+
Vo1–
Input
Filter
03064
Fig. 6
Block diagram of a single output converter
P (option)
28
30
32
26
Vi–
i
Vi+
Output
Control
Circuit
Primary
Control Circuit
Output
Filter
Output
Filter
Isolation
Cy
20
24
22
18
16
6
10
12
4
8
14
Overvoltage
Controller
Out OK+
Out OK–
T
R
Vo2+
Vo2–
S+
Vo1+
Vo1–
S–
Input
Filter
03065
Fig. 7
Block diagram of a double output converter
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