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參數資料
| 型號： | AMC8500QS16 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | TWO PHASE VARIABLE SPEED FAN MOTOR CONTROLLER |
| 中文描述： | 兩相流變速風扇電機控制器 |
| 文件頁數： | 14/27頁 |
| 文件大小： | 648K |
| 代理商： | AMC8500QS16 |
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P
P
Preliminary Specification
Andigilog, Inc. 2006
www.andigilog.com
August 2006 - 70A04018
aMC8500
The Op Amp can be used to gain up the Reference voltage in applications that require an additional regulated voltage source. This circuit
can supply up to 10 mA for powering additional circuitry or to provide a higher reference voltage. To insure that the Op Amp output
maintains regulation, the maximum programmed output voltage must be less than V
DD
- 1.7 V.
9
8
7
5
Reference
- 14 -
Op Amp
R2
R1
V
O
V
O
= V
Ref
R2
R1
+ 1
Comparator configuration with the
output forced high.
Comparator configuration with the
output forced low.
Unity gain amplifier configuration with
the output forced low.
Figure 27- Connections If Op Amp Is Not Required
Slope Select Grounded
Figure 28- Connections To Disable Minimum Speed Set Or Digital Signal Speed Control Operation
Slope Select Open
V
O Max
= V
DD
- 1.7 V
3.5 V
Op Amp
9
8
7
5
Reference
Op Amp
9
8
7
5
Op Amp
9
8
7
5
Reference
Reference
10
μ
A
9
6
Reference
Op Amp
Oscillator
R
Min Speed
Comp
PWM Comp
Digital
Detector
14
1
8
7
5
11
PWM
Logic
Reference
10
μ
A
9
6
Op Amp
Oscillator
R
Min Speed
Comp
PWM Comp
Digital
Detector
7
14
1
8
5
11
PWM
Logic
If
the end application does not require a programmed minimum speed or is to be controlled by a variable duty cycle digital pulse train, the
Minimum Speed Set comparator must be disabled by connecting Pin 6 directly to Pin 14.
Figure 26- Higher Voltage Reference
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