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CSE7759B Datasheet(PDF) 16 Page - Core Technology (Shenzhen) Co., Ltd.

Part No. CSE7759B
Description  Calibration-free Electric Energy Measuring Chip
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Maker  CHIPSEA [Core Technology (Shenzhen) Co., Ltd.]
Homepage  http://www.chipsea.com/
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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
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The power cycle is out of range, and the voltage and current are out of range, the active power is
0, the current is about 0.
(2) Give prompt through packet header 1 whether the chip is calibrated according to the
standard (0AAH indicates it has not been calibrated; 055H indicates it has been calibrated).
(3) Checksum1 is the sum of all data except for packet header and packet tail lowering by
8bit and is used to verify whether the data received is correct after the data is received by the
user.
(4) The unit for voltage cycle, current cycle and power cycle is us. When signal cycle is
larger than 1s, the signal cycle will be outputted to the user immediately, and it will prompt
through Adj.4(5 or 6) that it is an incomplete cycle. (For example, if signal cycle is 3.5s, 1s
signal cycle will be outputted to the user when the accumulated cycle counts to 1s, and 1.5s
signal cycle will be outputted to the user when the accumulated cycle counts to 1.5s instead
the message is received by the user after reaching 3.5s so that the response speed is
improved. When the signal amplitude to be measured declines, the signal cycle will increase.)
(5)Adj:
Table 3-4
Adj
Description
Adj.0
Calibration Address Selection 3n0H~3nFH(n=A,B,C,D,E,F)
Adj.2
Adj.1
Adj.0
Remarks
0
0
0
n=F
0
0
1
n=E
0
1
0
n=D
0
1
1
n=C
1
0
0
n=B
1
0
1
n=A
1
1
0
Calibration
disabled
Adj.1
Adj.2
Adj.3
Adj.3=1 indicates coefficient loading error;
Adj.3=0 indicates coefficient loading is correct;
Adj.4
Adj.4=1 indicates power cycle of serial port outputted is a complete cycle;




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