參數(shù)資料
型號(hào): 71M6513-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, PQFP100
封裝: LEAD FREE, LQFP-100
文件頁數(shù): 12/104頁
文件大?。?/td> 1390K
代理商: 71M6513-IGTR/F
71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
SEPTEMBER 2011
2005-2011 Teridian Semiconductor Corporation
Page: 15 of 104
A Maxim Integrated Products Brand
o
delay
o
delay
f
t
T
t
360
=
=
φ
Where f is the frequency of the input signal and tdelay is the sampling delay between voltage and current.
In traditional meter ICs, sampling is accomplished by using two A/D converters per phase (one for voltage and the other one
for current) controlled to sample simultaneously. Our Single-Converter Technology, however, exploits the 32-bit signal
processing capability of its CE to implement “constant delay” all-pass filters. These all-pass filters correct for the conversion
time difference between the voltage and the corresponding current samples that are obtained with a single multiplexed A/D
converter.
The “constant delay” all-pass filters provide a broad-band delay
β that is precisely matched to the difference in sample time
between the voltage and the current of a given phase. This digital filter does not affect the amplitude of the signal, but
provides a precisely controlled phase response. The delay compensation implemented in the CE aligns the voltage samples
with their corresponding current samples by routing the voltage samples through the all-pass filter, thus delaying the voltage
samples by β, resulting in the residual phase error β – Ф. The residual phase error is negligible, and is typically less than ±1.5
milli-degrees at 100Hz, thus it does not contribute to errors in the energy measurements.
相關(guān)PDF資料
PDF描述
71M6513H-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6513H-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6513-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6515H-IGTW/F SPECIALTY ANALOG CIRCUIT, PQFP64
71M6515H-IGTWR/F SPECIALTY ANALOG CIRCUIT, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
71M6515H 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC
71M6515H_11 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-DB 功能描述:開發(fā)板和工具包 - 8051 71M6515H Demo Brd RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評(píng)估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
71M6515H-IGT 制造商:Maxim Integrated Products 功能描述:METERING FRONT END - Rail/Tube
71M6515H-IGT/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