Cirrus Logic AN366 - Manual (Page 28)

AN366
28 AN366REV2
Figure 19. Conversion Window
CALCULATE VOLTS, AMPS, AND WATTS
Channel 1
AMPS1 = HEX2DEC(I1RMS) / 0xFFFFFF / 0.6

FS_Current
VOLTS1 = HEX2DEC(V1RMS) / 0xFFFFFF / 0.6

FS_Voltage
If (P1AVG ≤ 0x7FFFFF) Then
WATTS1 = HEX2DEC(P1AVG) / 0x7FFFFF / 0.36

FS_Power
Else
WATTS1 = (HEX2DEC(P1AVG) - 0xFFFFFF) / 0x7FFFFF / 0.36

FS_Power
Channel 2
AMPS2 = HEX2DEC(I2RMS)/0xFFFFFF / 0.6

FS_Current
VOLTS2 = HEX2DEC(V2RMS) / 0xFFFFFF / 0.6

FS_Voltage
If (P2AVG ≤ 0x7FFFFF) Then
WATTS2 = HEX2DEC(P2AVG) / 0x7FFFFF / 0.36

FS_Power
Else
WATTS2 = (HEX2DEC(P2AVG) - 0xFFFFFF) / 0x7FFFFF / 0.36

FS_Power
15 14
CALCULATE
VOLTS = FS_Voltage  (VRMS/0.6)
AMPS = FS_Current  (VRMS/0.6)
WATTS = FS_Scale_Power  (VRMS/0.36)