Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

Preview PDF HTML

AS8228 Folha de dados(PDF) 21 Page - ams AG

Nome de Peças AS8228
Descrição Electrónicos  Highly Integrated Single Phase 2 Current Energy Metering Integrated Circuits
PDF  123 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AMSCO [ams AG]
Página de início  http://www.ams.com
Logo AMSCO - ams AG

AS8228 Folha de dados(HTML) 21 Page - ams AG

Back Button AS8228 Datasheet HTML 17Page - ams AG AS8228 Datasheet HTML 18Page - ams AG AS8228 Datasheet HTML 19Page - ams AG AS8228 Datasheet HTML 20Page - ams AG AS8228 Datasheet HTML 21Page - ams AG AS8228 Datasheet HTML 22Page - ams AG AS8228 Datasheet HTML 23Page - ams AG AS8228 Datasheet HTML 24Page - ams AG AS8228 Datasheet HTML 25Page - ams AG Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 123 page
background image
Data Sheet AS8218 / AS8228
Revision 3.0, 31-May-06
Page 21 of 123
Phase Correction
The DSP provides phase correction of the two current channels (i1 and i2) by means of the Sinc
3 decimation
filters in the phase correction block. Only one of the phase correction settings (pcorr_i1 or pcorr_i2) is valid at
a time, depending on which current (i1 or i2) has been selected for the power calculation (sel_i).
The phase correction step size is dependent upon the main oscillator frequency selected (fosc) and the mains
frequency (fmains). Assuming a 3.579545MHz crystal oscillator frequency and 50Hz mains frequency, the phase
can be corrected in steps of 2.41’ or 0.04 degrees, which is equal to one oversampling sample, or one ‘unit’ in
the table below:
pcorr
Phase Correction
[unit(s)]
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
1
1
1
1
1
1
1
1
255
0
1
1
1
1
1
1
1
0
254
…
0
0
1
1
1
1
1
1
1
127
0
0
1
1
1
1
1
1
0
126
…
0
0
0
0
0
0
0
1
0
2
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
-1
1
1
1
1
1
1
1
1
0
-2
…
1
1
0
0
0
0
0
0
1
-127
1
1
0
0
0
0
0
0
0
-128
…
1
0
0
0
0
0
0
0
1
-255
1
0
0
0
0
0
0
0
0
-256
One ‘unit’ equals a certain phase shift related to the mains frequency:
8
360
360
360
1
/
f
f
f
f
t
t
unit
osc
mains
ovs
mains
mains
ovs
×
°
=
×
°
=
×
°
=
8
360
/
f
f
unit
#
Phase
osc
mains
×
°
×
=
Example:
8
360
1
/
f
f
unit
osc
mains
×
°
=
255 units = 255 x 2.41’ = 10.26°
where fmains is the mains frequency and fOSC is
the oscillator frequency.



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 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Folha de dados Download

Go To PDF Page


Ligação URL



ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   Link para a ficha técnica    |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : 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  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com