- 您现在的位置：买卖IC网 > Sheet目录1168 > 71M6533-DB (Maxim Integrated Products)BOARD DEMO 71M6533
71M6533- DB Demo Board User’s Manual
Finally, we calculate the new calibration current gain coefficient, including compensation for a slight gain
increase in the phase calibration circuit.
PHADJ ? 2 ( 1 ? 2 ? 9 ) cos( 2 ? f 0 T ))
PHADJ ( 2 ? 2
CAL _ I NEW ?
CAL _ I
A XI
1 ?
2
? 20
1
? 20
1 ? 2 ( 1 ? 2 ? 9 ) cos( 2 ? f 0 T ) ? ( 1 ? 2 ? 9 ) 2
2.1.2 CALIBRATION WITH FIVE MEASUREMENTS
The five measurement method provides more orthogonality between the gain and phase error derivations. This
method involves measuring E V , E 0 , E 180 , E 60 , and E 300 . Again, set all calibration factors to nominal, i.e. CAL_IA =
16384, CAL_VA = 16384, PHADJA = 0.
First, calculate A XV from E V :
1. ?
A XV ? E V ? 1
Calculate A XI from E 0 and E 180 :
2.
E 0 ?
IV A XV A XI cos( 0 ? ? S )
IV cos( 0 )
? 1 ? A XV A XI cos( ? S ) ? 1
3.
E 180 ?
IV A XV A XI cos(180 ? ? S )
IV cos( 180 )
? 1 ? A XV A XI cos( ? S ) ? 1
4.
E 0 ? E 180 ? 2 A XV A XI cos( ? S ) ? 2
5.
A XV A XI ?
E 0 ? E 180 ? 2
2 cos( ? S )
6. ?
A XI ?
( E 0 ? E 180 ) 2 ? 1
A XV cos( ? S )
Use above results along with E 60 and E 300 to calculate ? S .
7.
E 60 ?
IV A XV A XI cos( 60 ? ? S )
IV cos( 60 )
? 1
? A XV A XI cos( ? S ) ? A XV A XI tan( 60 ) sin( ? S ) ? 1
8.
E 300 ?
IV A XV A XI cos( ? 60 ? ? S )
IV cos( ? 60 )
? 1
? A XV A XI cos( ? S ) ? A XV A XI tan( 60 ) sin( ? S ) ? 1
Subtract 8 from 7
9.
E 60 ? E 300 ? 2 A XV A XI tan( 60 ) sin( ? S )
use equation 5:
10.
E 60 ? E 300 ?
E 0 ? E 180 ? 2
cos( ? S )
tan( 60 ) sin( ? S )
11.
E 60 ? E 300 ? ( E 0 ? E 180 ? 2 ) tan( 60 ) tan( ? S )
Page: 37 of 75
`
REV 3
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
71M6534H-DB
BOARD DEMO 71M6534H
71M6541F-DB
DEMO BOARD 71M6541F
71M6543F-DB-CT
DEMO BOARD 71M6543F-DB-CT
72-CNV-5
CONVERTER RS-232 TO RS-422 5V
72346-001
72346-1-SCA-II REC
72347-001LF
CONN RECEPT SCA2 20POS VERT PCB
72436-001LF
80POS EXT HT. REC SCA-2
72442-201LF
CONN RECEPT SCA2 80POS VERT PCB
相关代理商/技术参数
71M6533G
制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Exceeds IEC 62053/ANSI C12.20 Standards
71M6533G-IGTR/F
功能描述:计量片上系统 - SoC AC Power Monitoring SoC-Programd RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
71M6533H
制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC
71M6533H-IEL
制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC
71M6533H-IEL/F
制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC
71M6533H-IELR
制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC
71M6533H-IELR/F
制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC
71M6533H-IGT/F
功能描述:计量片上系统 - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel