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STPMC1 Fiches technique(PDF) 3 Page - STMicroelectronics

No de pièce STPMC1
Description  Programmable poly-phase energy calculator IC
Download  77 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPMC1 Fiches technique(HTML) 3 Page - STMicroelectronics

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STPMC1
Contents
Doc ID 15728 Rev 6
3/77
9.10.4
EMI is detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.11
Energy to frequency conversion (configuration bits: APL, KMOT,
LVS, FUND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.12
Using STPMC1 in microcontroller based meter - peripheral
operating mode (configuration bits: APL, KMOT, LVS, FUND) . . . . . . . . . 34
9.13
Driving a stepper motor - standalone operating mode
(configuration bits: APL, LVS, KMOT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.14
Negative power accumulation (configuration bit ABS, status bit SIGN) . . 37
9.15
Phase delay calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.16
Calibration (configuration bits: PM, TCS, CIX, CVX, CCA, CCB, CPX) . . 40
9.16.1
Voltage and current channels calibration . . . . . . . . . . . . . . . . . . . . . . . . 40
9.16.2
Phase compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.16.3
Mutual current compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.17
Data records map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9.17.1
Group 0 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9.17.2
Group 1 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.17.3
Group 2 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.17.4
Group 3 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.17.5
Group 4 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9.17.6
Group 5 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.17.7
Group 6 data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
9.17.8
Parity calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
9.18
Status bits map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9.19
Configuration bits map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
9.20
Mode signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9.21
SPI interface (configuration bit SCLP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.21.1
Remote reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.21.2
Reading data records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.21.3
Writing procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.21.4
Interfacing the standard 3-wire SPI with STPMC1 SPI . . . . . . . . . . . . . 65
9.21.5
Permanent writing of the CFG bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10
Energy calculation algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1
Active energy calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
10.2
Reactive energy calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
10.3
Voltage and current RMS values calculation . . . . . . . . . . . . . . . . . . . . . . 71


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