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參數(shù)資料
| 型號(hào)： | 71M6515H-IGTR/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封裝： | LEAD FREE, LQFP-64 |
| 文件頁數(shù)： | 39/60頁 |
| 文件大?。?/td> | 826K |
| 代理商： | 71M6515H-IGTR/F |
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71M6515H
Energy Meter IC
DATA SHEET
JULY 2011
Page: 44 of 60
2005
2011 Teridian Semiconductor Corporation
1.6
A Maxim Integrated Products Brand
IASQSUM (0x39), IBSQSUM (0x3A), ICSQSUM (0x3B)
These registers hold the sum of the squared current samples collected during the previous accumulation interval. The
values for IASQSUM, IBSQSUM, and ICSQSUM are provided directly by the CE and are not post-processed. The magnitude
of the accumulated samples is determined by:
h
A
In
IMAX
LSB
2
13
2
10
4045
.
9
8
_
=
IASQFRACT (0x4A), IBSQFRACT (0x4B), ICSQFRACT (0x4C)
These read-only registers hold the difference between the 10-bit residual squared current sum of the current accumulation
interval and the 10-bit residual squared current sum of the previous interval. If IASQSUM, IBSQSUM, or ICSQSUM are
used to calculate current, the value obtained over several accumulation intervals will be accurate due to averaging, but
the individual values will have a higher uncertainty than when using IASQFRACT, IBSQFRACT, and ICSQFRACT.
The most accurate calculation of the squared current for a phase X (IXSQ) uses the formula:
IXSQ = IXSQSUM + 2
-10 IXSQFRACT
INSQFRACT (0x4D)
This register holds the difference between the 10-bit residual squared neutral currents of the current accumulation interval
and the 10-bit residual squared neutral currents of the previous interval. The value can be used to improve the accuracy
of the squared neutral current reading by applying the formula:
INSQ = INSQSUM + 2
-10 INSQFRACT
INSQSUM (0x3C)
This register holds the sum of the square of the calculated neutral current collected during the previous accumulation
interval. The calculation is implementing the following equation:
(
)
∑
+
=
2
1
0
I
INSQSUM
The magnitude of the accumulated samples is determined by:
h
A
In
IMAX
LSB
2
13
2
10
4045
.
9
8
_
=
IPHASE_ABC (0x0F)
This register holds voltage-to-current phase information for all three phases. Positive phase means lagging current
(inductive load). One LSB is equivalent to 1 degree. The range is from (2
8 – 1) to –(28 – 1). Since the phase calculation
involves the post-processor, these registers will not be functional when the CE_ONLY bit in the CONFIG register is set.
Bits 8-0: These bits (IPHASE_C) represent the voltage-to-current phase angle in phase C.
Bits 17-9: These bits (IPHASE_B) represent the voltage-to-current phase angle in phase B.
Bits 26-18: These bits (IPHASE_A) represent the voltage-to-current phase angle in phase A.
IRMS_A (0x0C), IRMS_B (0x0D), IRMS_C (0x0E)
These registers hold the post-processed RMS current for each phase. Only the 16 most significant bits are used. The
magnitude of the values is determined by:
rms
A
CYCLES
SUM
In
IMAX
LSB
_
8
_
10
8781
.
6
9
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6515H-IGTW/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6515H-IGTW1 | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
| 71M6515H-IGTWR1 | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
| 71M6521BE | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC |
| 71M6521BE-DB | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 71M6521BE Demo Brd |
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