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| 型号： | 71M6511-IGTR/F |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 封装： | LEAD FREE, LQFP-64 |
| 文件页数： | 71/98页 |
| 文件大小： | 1278K |
| 代理商： | 71M6511-IGTR/F |
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71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
NOVEMBER 2010
Page: 73 of 98
2005–2010 Teridian Semiconductor Corporation
V2.7
A Maxim Integrated Products Brand
S
F
T
F
0
=
Current Shunt Variables
Input variables: IA_SHUNT and IB_SHUNT can configure the current inputs to accept shunt resistor sensors. In this case the
CE provides an additional gain of 8 to the current inputs. This will enable the pulse rate to change by 8 times. In order to
maintain a normal pulse rate WRATE may have to be decreased by 8 times. Whenever IA_SHUNT or IB_SHUNT are set to 1 or
a positive number, In_8 is assigned a value of 8 in the equation for Kh.
CE
Address
Name
Default
Description
2A
IA_SHUNT
-1
When +1, these variables increase the respective current gain by 8. The
gain factor controlled by In_SHUNT is referred to as In_8 throughout this
document. Allowed values are 1 or –1. For example, if IB_SHUNT=-1, IB_8
= 1, if IB_SHUNT = 1, IB_8 = 8.
IA_SHUNT corresponds to IA_8, IB_SHUNT corresponds to IB_8.
2B
IB_SHUNT
-1
2C
RESERVED
CE Calibration Parameters
The table below lists the parameters that are typically entered to affect calibration of meter accuracy.
CE
Address
Name
Default
Description
8
CAL_IA
16384
These constants control the gain of their respective channels. The nominal
value for each parameters is 2
14 = 16384. The gain of each channel is directly
proportional to its CAL parameter. Thus, if the gain of a channel is 1% slow,
CAL should be scaled by 1/(1 – 0.01).
9
CAL_VA
16384
A
CAL_IB
16384
B
RESERVED
C
RESERVED
D
RESERVED
E
PHADJ_A
0
These two constants control the CT phase compensation. No compensation
occurs when PHADJ_X = 0. As PHADJ_X is increased, more compensation
(lag) is introduced. Range:
±215 – 1. If it is desired to delay the current by the
angle
Φ:
Φ
Φ
=
TAN
c
b
TAN
a
X
PHADJ
20
2
_
)
2
cos(
)
2
1
(
2
)
2
1
(
1
0
9
2
9
T
F
a
π
+
=
)
2
sin(
)
2
1
(
0
9
T
F
b
π
=
)
2
cos(
)
2
1
(
1
0
9
T
F
c
π
=
F
0
10
0
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6511-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 71M6511-IGT | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 71M6511-IGTR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 71M6511H-IGTR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
| 71M6511H-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
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