Electronic Components Datasheet Search
Selected language     English  ▼
Advanced Search

              



Part Name


CSE7759B Datasheet(PDF) 10 Page - Core Technology (Shenzhen) Co., Ltd.

Part No. CSE7759B
Description  Calibration-free Electric Energy Measuring Chip
Download  25 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  CHIPSEA [Core Technology (Shenzhen) Co., Ltd.]
Homepage  http://www.chipsea.com/
Logo 

 10 page
background image
本资料为芯海科技专有财产,非经许可,不得复制、翻印或转变其他形式使用。
This document is exclusive property of CHIPSEA and shall not be reproduced or copied or transformed to any other format
without prior permission of CHIPSEA
聚点滴之芯.成浩瀚之海
10/25
3
Application of the Chip
3.1 Typical Application of CSE7759B
As shown in Figure 2, two small capacitors shall be connected in parallel on power supply
terminal of CSE7759B to filter out high-frequency and low-frequency noise from power grid.
The current signal is connected to CSE7759B after being sampled by manganin resistor and the
voltage signal is inputted into CSE7759B after passing through resistor network. CSE7759B
must be connected to the current signal and the voltage signal simultaneously but shall not be
connected only to either signal.
CSE7759B
VDD
V1P
V1N
V2P
RI
CF
TI
VSS
1MR 1%
1000V
1K 1%
33nF
33nF
220V
Load
5V
1K 1%
L
live line
1K 1%
Power
Supply
Module
N
neutral line
L
1mR 1%
manganin
resistor
33nF
0.1uF
10uF
UART
neutral line
as ground
Optocoupler
isolation
MCU
Figure 2: Typical Application of CSE7759B (Isollation)
Note:
CSE7759B is a calibration-free electric energy measuring chip. The error of calibrated chip
is ±2% upon delivery. Thus, final accuracy of external devices will influence overall accuracy of
the products of the client. As for the device with accuracy of 1% indicated in Figure 2, the higher
the accuracy is, the overall accuracy of the client will be.
As shown in Figure 2, it is the 1mR manganin resistor in current channel which influences
current accuracy and it is 1M resistor and 1K resistor connected with it in voltage channel which
influences voltage accuracy. When the accuracy of all three devices is within ±1%, the overall




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25 


Datasheet Download




Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl