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參數資料
| 型號： | ADE7762ARWZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Polyphase Energy Metering IC with Phase Drop Indication |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | ROHS COMPLIANT, MS-013AE, SOIC-28 |
| 文件頁數： | 22/28頁 |
| 文件大小： | 363K |
| 代理商： | ADE7762ARWZ |
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ADE7762
Preliminary Technical Data
POWER MEASUREMENT CONSIDERATIONS
Calculating and displaying power information always have some
associated ripple that depends on the integration period used in the
MCU to determine average power as well as the load. For example,
at light loads, the output frequency can be 10 Hz. With an integra-
tion period of two seconds, only about 20 pulses are counted. The
possibility of missing one pulse always exists since the ADE7762
output frequency is running asynchronously to the MCU timer.
This would result in a 1-in-20 or 5% error in the power measure-
ment. To remedy this, an appropriate integration time should be
considered to achieve the desired accuracy.
Rev. PrB | Page 22 of 28
MODE SELECTION OF THE SUM OF THE THREE
ACTIVE ENERGIES
The ADE7762 can be configured to execute the arithmetic sum
of the three active energies, Wh = Wh
Φ
A
+ Wh
Φ
B
+ Wh
Φ
C
, or the
sum of the absolute value of these energies, Wh = |Wh
Φ
A
| +
|Wh
Φ
B
| + |Wh
Φ
C
|. The selection between the two modes can be
made by setting the ABS pin. Logic high and logic low applied
on the ABS pin correspond to the arithmetic sum and the sum
of absolute values, respectively.
When the sum of the absolute values is selected, the active
energy from each phase is always counted positive in the total
active energy. It is particularly useful in 3-phase 4-wire
instillation where the sign of the active power should always be
the same. If the meter is misconnected to the power lines, that
is, CT connected in the wrong direction then the total active
energy recorded without this solution can be reduced by two-
thirds.
The sum of the absolute values assures that the active energy
recorded represents the actual active energy delivered. In this
mode, the reverse power pin still detects when negative power is
present on any of the three phase inputs, but energy continues
to accumulate regardless of the sign.
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| ADE7768AR | Energy Metering IC with Integrated Oscillator and Positive Power Accumulation |
| ADE7768AR-REF | Energy Metering IC with Integrated Oscillator and Positive Power Accumulation |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADE7762ARWZ-RL | 功能描述:IC ENERGY METERING 3PHASE 28SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測量 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:* |
| ADE7763 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Active and Apparent Energy Metering IC |
| ADE7763_13 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Active and Apparent Energy Metering IC |
| ADE7763ARS | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:1 PHASE ACTIVE AND APPARENT ENERGY IC - Bulk |
| ADE7763ARSRL | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP T/R |
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