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參數資料
型號: 3652JG
英文描述: BOARD ADD-ON DUAL PIXEL LVDS PNL
中文描述: 光耦合線性隔離放大器
文件頁數: 2/13頁
文件大小: 127K
代理商: 3652JG
10
3650/52
APPLICATIONS
Figure 8 shows a system where isolation amplifiers (3650)
are used to measure the armature current and the armature
voltage of a motor.
The armature current of the motor is converted to a voltage
by the calibrated shunt RS and then amplifier (adjustable
gain) and isolated by the 3650.
The armature voltage is sensed by the voltage divider (ad-
justable) shown and then amplified and isolated by the 3650.
The 3650 provides the advantage of accurate current mea-
surement in the presence of high common-mode voltage.
Both 3650s provide the advantage of isolating the motor
ground from the control system ground. Isolated power is
provided by an isolated DC/DC converter (BB Model 722 or
equivalent).
The 3652 is ideally suited for patient monitoring applica-
tions as shown in Figure 9. The fact that it is a true balanced
input instrumentation amplifier with very high differential
and common-mode impedance means that it can greatly
reduce the common-mode noise pick up due to imbalance in
lead impedances that often appear in patient monitoring
situations. The 3kV and 6kV shown in Figure 9 are the 10ms
pulse ratings of the +IR and –IR inputs for the common-mode
and differential input voltages with respect to input com-
mon. The rating of the isolation barrier is 2000Vpk continu-
FIGURE 8. Isolated Armature Current and Voltage Sensor.
P+
V–
+V
O
3650HG
11
10
12
20
4.99k
+V
CC
23
G = 1V/V
To
Voltage
Sense
C
–V
O
722
1.3k
E
V+
1M
4.99k
500
9.76k
14
13
17
26
–V
CC
O/P Com
+V
–V
I/O Com
3650JG
11
10
20
4.75k
23
4.99k
14
12
13
+V
–V
I/O
Com
V
A/100
To
Current
Sense
17 O/P Com
100V
S
26
+V
CC
–V
CC
+15VDC
–15VDC
O/P Com
G = 100V/V
500
Motor
Control
V
A
(500V)
V
S
(100mV)
R
S
V
OUT
+
+
V
CM
CMRR
IMRR
COMMON-MODE AND
ISOLATION-MODE REJECTION
The expression for the output error due to common-mode
and isolation mode voltage is:
VOUT = G
+
GUARDING AND PROTECTION
To preserve the excellent inherent isolation characteristics of
these amplifiers, the following recommended practice should
be noted.
1. Use shielded twisted pair of cable at the input as with
any instrumentation amplifier.
2. Care should be taken to minimize external capacitance.
A symmetrical layout of external components to achieve
balanced capacitance from the input terminals to output
common will preserve high IMR.
3.
External components and conductor patterns should be
at a distance equal to or greater than the distance
between the input and output terminals to prevent HV
breakdown.
4.
Though not an absolute requirement, the use of lamin-
ated or conformally coated printed circuit boards is
recommended.
V
ISO
相關PDF資料
PDF描述
3652MG Optically-Coupled Linear ISOLATION AMPLIFIERS
3652 Optically-Coupled Linear ISOLATION AMPLIFIERS
3656AG Transformer Coupled ISOLATION AMPLIFIER
3656BG Transformer Coupled ISOLATION AMPLIFIER
3656 Transformer Coupled ISOLATION AMPLIFIER
相關代理商/技術參數
參數描述
3652MG 制造商:BB 制造商全稱:BB 功能描述:Optically-Coupled Linear ISOLATION AMPLIFIERS
3653 制造商:Thomas & Betts 功能描述:1 1/4" GROUNDING WEDGE 制造商:Thomas & Betts 功能描述:Fittings Clamp 1.25inch Steel
36530 功能描述:TOOL SCRWDRVR TORX WING HAND T15 RoHS:否 類別:工具 >> 螺釘和螺母驅動器 系列:- 標準包裝:1 系列:- 類型:六角扳手(內六角扳手)- 偏移 尺寸:0.098"(2.5mm) 特點:- 長度 - 葉片:0.70"(18mm) 長度 - 總體:2.17"(55mm) 重量:0.01 磅(4.54g) 其它名稱:35112WI
365-300 制造商:Bivar 功能描述:3XX Series Single In-Line .397 in Long Natural Nylon Capacitor Mount
36530-0108 功能描述:DIN 41612 連接器 DIN 41651.IDC.FEMALE WITH STRAIN RELIEF RoHS:否 制造商:HARTING 系列:har-bus 64 產品類型:Plugs 排數:5 位置/觸點數量:160 安裝角:Right 類型:Shrouded Header 端接類型:Solder 外殼材料: 觸點材料: 觸點電鍍:
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