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參數(shù)資料
| 型號(hào)： | ADE7878ACPZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | Poly Phase Multifunction Energy Metering IC With Total And Fundamental Powers, No Of Pins: 40, Temperature Range: Ind |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, QCC40 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, MO-220WJJD, LFCSP-40 |
| 文件頁數(shù)： | 90/96頁 |
| 文件大小： | 1096K |
| 代理商： | ADE7878ACPZ |
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ADE7854/ADE7858/ADE7868/ADE7878
Rev. E| Page 90 of 96
Table 49. MMODE Register (Address 0xE700)
Bit
Location
Bit Mnemonic
Default Value
Description
00: Phase A selected as the source of the voltage line period measurement.
01: Phase B selected as the source of the voltage line period measurement.
10: Phase C selected as the source of the voltage line period measurement.
1:0
PERSEL[1:0]
00
11: reserved. When set, the ADE7854/ADE7858/ADE7868/ADE7878 behave like PERSEL[1:0] = 00.
2
PEAKSEL[0]
1
PEAKSEL[2:0] bits can all be set to 1 simultaneously to allow peak detection on all three
phases simultaneously. If more than one PEAKSEL[2:0] bits are set to 1, then the peak
measurement period indicated in the PEAKCYC register decreases accordingly because zero
crossings are detected on more than one phase.
When this bit is set to 1, Phase A is selected for the voltage and current peak registers.
3
PEAKSEL[1]
1
When this bit is set to 1, Phase B is selected for the voltage and current peak registers.
4
PEAKSEL[2]
1
When this bit is set to 1, Phase C is selected for the voltage and current peak registers.
7:5
Reserved
000
Reserved. These bits do not manage any functionality.
Table 50. ACCMODE Register (Address 0xE701)
Bit
Location
Bit Mnemonic
Default Value
Description
00: signed accumulation mode of the total and fundamental active powers. Fundamental
active powers are available in the ADE7878.
01: reserved. When set, the device behaves like WATTACC[1:0] = 00.
10: reserved. When set, the device behaves like WATTACC[1:0] = 00.
1:0
WATTACC[1:0]
00
11: absolute accumulation mode of the total and fundamental active powers.
00: signed accumulation of the total and fundamental reactive powers. Total reactive powers
are available in the ADE7858, ADE7868, and ADE7878. Fundamental reactive powers are
available in the ADE7878. These bits are always 00 for the ADE7854.
01: reserved. When set, the device behaves like VARACC[1:0] = 00.
10: the total and fundamental reactive powers are accumulated, depending on the sign of
the total and fundamental active power: if the active power is positive, the reactive power is
accumulated as is, whereas if the active power is negative, the reactive power is accumulated
with reversed sign.
3:2
VARACC[1:0]
00
11: reserved. When set, the device behave like VARACC[1:0] = 00.
These bits select the inputs to the energy accumulation registers. IA’, IB’, and IC’ are IA, IB, and
IC shifted respectively by 90°. See Table 51.
00: 3-phase four wires with three voltage sensors.
01: 3-phase three wires delta connection.
10: 3-phase four wires with two voltage sensors.
5:4
CONSEL[1:0]
00
11: 3-phase four wires delta connection.
6
REVAPSEL
0
0: The total active power on each phase is used to trigger a bit in the STATUS0 register as
follows: on Phase A triggers Bit 6 (REVAPA), on Phase B triggers Bit 7 (REVAPB), and on
Phase C triggers Bit 8 (REVAPC). This bit is always 0 for the ADE7854, ADE7858, and ADE7868.
1: The fundamental active power on each phase is used to trigger a bit in the STATUS0
register as follows: on Phase A triggers Bit 6 (REVAPA), on Phase B triggers Bit 7 (REVAPB),
and on Phase C triggers Bit 8 (REVAPC).
7
REVRPSEL
0
0: The total active power on each phase is used to trigger a bit in the STATUS0 register as
follows: on Phase A triggers Bit 10 (REVRPA), on Phase B triggers Bit 11 (REVRPB), and on
Phase C triggers Bit 12 (REVRPC). This bit is always 0 for the ADE7854, ADE7858, and
ADE7868.
1: The fundamental active power on each phase is used to trigger a bit in the STATUS0
register as follows: on Phase A triggers Bit 10 (REVRPA), on Phase B triggers Bit 11 (REVRPB),
and on Phase C triggers Bit 12 (REVRPC).
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