ADE9000ACPZ-RL datasheet(27/73 Pages) AD

部品番号	ADE9000ACPZ-RL

部品情報	High Performance, Multiphase Energy Power Quality Monitoring IC

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ADE9000

Data Sheet

Rev. A | Page 26 of 72

THEORY OF OPERATION

MEASUREMENTS

Current Channel

The ADE9000 has three phase current channels and one neutral

current channel. The phase current channel datapath for IA, IB,

and IC is shown in Figure 56 and datapath for the neutral channel

is shown in Figure 57.

ADC_REDIRECT Multiplexer

The ADE9000 provides a multiplexer that allows any ADC

output to be redirected to any digital processing datapath

(see Figure 58).

By default, each modulator is mapped to its corresponding

datapath.

Current Channel Gain, xIGAIN

The ADE9000 provides current gain calibration registers

(AIGAIN, BIGAIN, CIGAIN and NIGAIN), one for each

current channel.

The current channel gain varies with xIGAIN as shown in the

following equation:

Current Channel Gain = (1 + (xIGAIN/227))

xIGAIN

HPF

REFERENCE

Σ-Δ

MODULATOR

IP

VIN

IM

SINC4

LPF

4:1

ZX DETECTION

xIGAINx

MTEN

PHASE

COMP

WAVEFORM

BUFFER

WF_SRC

INTEGRATOR

HPFDIS

INTEN

ZX_SRC_SEL

ICONSEL1

IB = –IA – IC

WF_CAP_SEL

xI_PCF

RESAMPLING

ADC_

REDIRECT

MUX

1REGISTER ACCMODE, BIT ICONSEL ONLY AFFECTS IB CHANNEL CALCULATION.

FUNDAMENTAL AND TOTAL

ACTIVE AND REACTIVE

POWER CALCULATIONS

CURRENT PEAK

DETECTION

FAST RMS½,

10 CYCLE RMS/

12 CYCLE RMS

RMS_SRC_SEL

FUNDAMENTAL AND TOTAL

RMS, VA, THD

CALCULATIONS

+1V

ANALOG INPUT RANGE

0V

–1V

Figure 56. Current Channel (IA, IB, IC) Datapath

HPF

REFERENCE

Σ-Δ

MODULATOR

INP

VIN

INN

SINC4

LPF

4:1

NIGAIN

PHASE

COMP

WAVEFORM

BUFFER

WF_SRC

INTEGRATOR

HPFDIS

ININTEN

WF_CAP_SEL

NI_PCF

RESAMPLING

ADC_

REDIRECT

MUX

VECTOR CURRENT SUM

CALCULATIONS

NEUTRAL CURRENT RMS

NPHCAL

FAST RMS½,

10 CYCLE RMS/

12 CYCLE RMS

RMS_SRC_SEL

V

+1V

ANALOG INPUT RANGE

0V

–1V

IN

Figure 57. Neutral Current Channel (IN) Datapath

REFERENCE

Σ-Δ

MODULATOR

VIN

SINC4

IA_DIN

IA_MOD

AI_SINC_DAT

AI_LPF_DAT

NOTES

1. Ix_MOD AND Vx_MOD ARE THE RESPECTIVE MODULATOR OUTPUT.

LPF

4:1

IA MODULATOR

IA DIGITAL DATAPATH

IA_MOD

011

IB_MOD

IC_MOD

IN_MOD

VA_MOD

VB_MOD

VC_MOD

IA_MOD

000

001

010

100

101

110

111

Figure 58. ADC_REDIRECT Modulator to Digital Datapath Multiplexing

同様の部品番号 - ADE9000ACPZ-RL

メーカー	部品番号	データシート	部品情報
Analog Devices	ADE9078	2Mb / 108P	High Performance
	ADE9078ACPZ	2Mb / 108P	High Performance
	ADE9078ACPZ-RL	2Mb / 108P	High Performance

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