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| 型号： | 71M6515H-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/66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： | 否 |
| 已用 IC / 零件： | 71M6515H |
| 已供物品： | 2 个板，线缆，CD，电源 |
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71M6515H Demo Board User’s Manual
2
2
2.1
APPLICATION INFORMATION
CALIBRATION PROCEDURE
In this section, requirements for calibration systems will be discussed, and calibration procedures will be
suggested.
Sample calibration procedures for CT/shunt meters are provided requiring three or five
measurements. A sample calibration procedure is provided for Rogowski meters.
2.1.1
CALIBRATION SYSTEMS
Performing a proper calibration requires that a calibration system is used, i.e. equipment that applies
accurate voltage, load current and load angle to the unit being calibrated, while measuring the response
from the unit being calibrated in a repeatable way. By repeatable we mean that the calibration system is
synchronized to the meter being calibrated. Best results are achieved when the first pulse from the meter
opens the measurement window of the calibration system. This mode of operation is opposed to a calibrator
that opens the measurement window at random time and that therefore may or may not catch certain pulses
emitted by the meter.
It is also very important that the calibration system, just like the hookup of a real meter, applies voltage
constantly while varying the current. For the calibration of the 71M6515H it is essential that voltage is
applied at least a few seconds before the measurement is started , i.e. before current is applied. This is
necessary because:
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In case the internal power supply is used, the 71M6515H needs a few seconds to power up.
Even if the 71M6515H has DC power (V3P3), filters and other functions inside the CE require time
to get synchronized in order to obtain accurate measurements.
For a typical energy calibration, a meter calibration system is used to apply a calibrated load, e.g. 240V at
30A, while interfacing the voltage and current sensors to the 71M6515H. This load should result in an
observable pulse rate at the WPULSE output depending on the selected energy per pulse. For example,
7.2kW will result in a pulse rate corresponding to 7200Wh/3600s = 2Wh/s.
Most calibration systems provide ways to evaluate the observed pulse rate by comparing it to the ideal pulse
rate.
2.1.2
DEFINITIONS
Each meter phase must be calibrated individually. The PHADJ equations apply only when a current
transformer is used for the phase in question. If a Rogowski coil is used, the phase compensation should be
correct by default and adjustments are required only to CAL_Ix and CAL_Vx. Note that positive load angles
The calibration procedures described below should be followed after interfacing the voltage and current
sensors to the 71M6515H chip. When properly interfaced, the V3P3 power supply is connected to the meter
neutral and is the DC reference for each input.
71M6515H, is scaled to be less than 250mV (peak).
Revision 2.0
Each voltage and current waveform, as seen by the
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? Copyright 2005 TERIDIAN Semiconductor Corporation
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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 |
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