Cirrus-logic AN366 Manual do Utilizador descarregar pdf (Página 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

1514

CALCULATE

VOLTS = FS_Voltage



(VRMS/0.6)

AMPS = FS_Current



(VRMS/0.6)

WATTS = FS_Scale _Power



(VRMS/0.36)

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Cirrus-logic AN366 Manual do Utilizador Página 28