Datasheet

90E36A POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 63 April 2, 2013
180H BV_HR2 R
phase B, Voltage, Harmonic Ratio for 2-th
order component
Harmonic Ratio (%) = Register Value / 163.84
181H BV_HR3 R
phase B, Voltage, Harmonic Ratio for 3-th
order component
182H BV_HR4 R
phase B, Voltage, Harmonic Ratio for 4-th
order component
… R
19EH BV_HR32 R
phase B, Voltage, Harmonic Ratio for 32-th
order component
19FH BV_THD R
phase B, Voltage, Total Harmonic Distortion
Ratio
1A0H CV_HR2 R
phase C, Voltage, Harmonic Ratio for 2-th
order component
Harmonic Ratio (%) = Register Value / 163.84
1A1H CV_HR3 R
phase C, Voltage, Harmonic Ratio for 3-th
order component
1A2H CV_HR4 R
phase C, Voltage, Harmonic Ratio for 4-th
order component
… R
1BEH CV_HR32 R
phase C, Voltage, Harmonic Ratio for 32-th
order component
1BFH CV_THD R
phase C, Voltage, Total Harmonic Distortion
Ratio
1C0H
AI_FUND
R
phase A, Current, Fundamental component
value
Current, Fundamental component value
= Register Value * 3.2656*10
-3
/ 2^scale,
Register (1C0H, 1C2H, 1C4H);
Voltage, Fundamental component value
= Register Value * 3.2656*10
-2
/ 2^scale,
Register (1C1H, 1C3H, 1C5H).
The scale is defined by the DFT_SCALE (1D0H)
register.
1C1H AV_FUND R
phase A, Voltage, Fundamental component
value
1C2H BI_FUND R
phase B, Current, Fundamental component
value
1C3H BV_FUND R
phase B, Voltage, Fundamental component
value
1C4H CI_FUND R
phase C, Current, Fundamental component
value
1C5H CV_FUND R
phase C, Voltage, Fundamental component
value
1D0H DFT_SCALE RW
Input Gain = 2^Scale, i.e. Scale = # of bit shifts
[2:0]: Scale for Channel A-I.
[5:3]: Scale for Channel B-I.
[8:6]: Scale for Channel C-I.
[10:9]: Scale for Channel A-V.
[12:11]: Scale for Channel B-V.
[14:13]: Scale for Channel C-V.
[15]: Window disable. ‘1’ disable the Hanning
window.
Input data is scaled before sampling or DFT.
1D1H DFT_CTRL RW
Bit[0]: DFT_START.
0: Reset and abort the DFT computation.
1: Start the DFT. This bit is automatically
cleared after DFT finishes.
Table-14 Harmonic Fourier Analysis Results Registers
Register
Address Register Name
Read/Write
Type Functional Description Comment