参数资料
型号: 71M6515H-DB
厂商: Maxim Integrated Products
文件页数: 28/66页
文件大小: 0K
描述: BOARD DEMO 71M6515H ENERGY METER
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: 电源管理,电度表/功率表
嵌入式:
已用 IC / 零件: 71M6515H
已供物品: 2 个板,线缆,CD,电源
71M6515H Demo Board User’s Manual
Voltage
Current lags
voltage
Positive
(inductive )
direction
+60°
Current
-60°
Current leads
voltage
(capacitive )
Voltage
Generating Energy
Using Energy
Figure 2-1: Phase Angle Definitions
2.1.3
ERROR SOURCES IN A METER (CT/SHUNT RESISTOR)
A typical meter has phase and gain errors as shown by φ S , A XI , and A XV in Figure 2-2. Following the typical
meter convention of current phase being in the lag direction, the small amount of phase lead in a typical
current sensor is represented as - φ S . The errors shown in Figure 2-2 represent the sum of all gain and
phase errors. They include errors in voltage attenuators, current sensors, and in ADC gains. In other
words, no errors are made in the ‘input’ or ‘meter’ boxes.
INPUT
ERRORS
METER
I φ L
φ L is phase lag
?φ S
φ S is phase lead
A XI
I RMS
IDEAL = I ,
ACTUAL = I A XI
Π
W
IDEAL = IV cos( φ L )
ACTUAL = IV A XI A XV cos( φ L ? φ S )
V
A XV
V RMS
IDEAL = V ,
ACTUAL = V A XV
ERROR ≡
ACTUAL ? IDEAL = ACTUAL ?
IDEAL IDEAL
1
Figure 2-2: Watt Meter with Gain and Phase Errors
During the calibration phase, we measure errors and then introduce correction factors to nullify their effect.
With three unknowns to determine, we must make at least three measurements. If we make more
measurements, we can average the results.
Revision 2.0
? Copyright 2005 TERIDIAN Semiconductor Corporation
28 of 66
相关PDF资料
PDF描述
71M6521FE-DB BOARD DEMO FOR 71M6521FE
71M6531F-DB BOARD DEMO 71M6531F
71M6533-DB BOARD DEMO 71M6533
71M6534H-DB BOARD DEMO 71M6534H
71M6541F-DB DEMO BOARD 71M6541F
相关代理商/技术参数
参数描述
71M6515H-IGT 制造商:Maxim Integrated Products 功能描述:METERING FRONT END - Rail/Tube
71M6515H-IGT/F 功能描述:计量片上系统 - SoC 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
71M6515H-IGTR 制造商:Maxim Integrated Products 功能描述:71M6515H-IGT - T/REEL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Energy Meter IC
71M6515H-IGTR/F 功能描述:计量片上系统 - SoC 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
71M6515H-IGTW/F 功能描述:计量片上系统 - SoC 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