MAXQ3180-RAN+ datasheet(28/48 Pages) MAXIM

28 / 48 page

Low-Power, Multifunction, Polyphase AFE

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Table 4. RAM Register Summary (continued)

NAME

ADDRESS

(BYTE)

DESCRIPTION

R/W

DEFAULT

VALUE

(HEX)

BITS

NAME

DESCRIPTION

PHASE_B_

KWHIH

478

0x1DE

Amp-Hours

—

15:0

Accumulated amp-hours. Units

defined by KAHT setting.

PHASE_B_

I_GAIN

480

0x1E0

Current Gain

Coefficient

R/W

0x0000

15:0

Signed two’s complement;

Used to correct IRMS:

Y = X x (1 + gain/216)

PHASE_B_

V_GAIN

482

0x1E2

Voltage Gain

Coefficient

R/W

0x0000

15:0

Signed two’s complement;

Used to correct VRMS:

Y = X x (1 + gain/216)

PHASE_B_

E_GAIN_HI

484

0x1E4

Power and

Energy Gain

Coef

R/W

0x0000

15:0

Signed two’s complement;

Used to correct pwr:

Y = X x (1 + gain/216)

PHASE_B_

EOFF_HI

486

0x1E6

Linearity

Coefficient:

High Range

Energy Offset

R/W

0x0000

15:0

Signed two’s complement;

Used to correct energy:

Y = X - Eoff_hi

PHASE_B_

E_GAIN_LO

488

0x1E8

Linearity

Coefficient:

Low Range

Energy Gain

R/W

0x0000

15:0

Signed two’s complement;

Used to correct pwr:

Y = X x (1 + gain/216)

PHASE_B_

EOFF_LO

490

0x1EA

Linearity

Coefficient:

Low Range

Energy Offset

R/W

0x0000

15:0

Signed two’s complement;

Used to correct pwr:

Y = X - Eoff_lo

PHASE_B_

PA_0

492

Phase Angle

Coefficient

R/W

0x0000

15:0

PHASE_B_

PA_1

494

Phase Angle

Coefficient

R/W

0x0000

15:0

PHASE_B_

PA_2

496

Phase Angle

Coefficient

R/W

0x0000

15:0

PHASE_B_

PA_3

498

Phase Angle

Coefficient

R/W

0x0000

15:0

Signed two’s complement;

Y = PA_0 + (PA_1 x X) +

(PA_2 x X2) + (PA_3 x X3)

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