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參數資料
| 型號： | ADE7762ARW-RL |
| 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： | MS-013AE, SOIC-28 |
| 文件頁數： | 20/28頁 |
| 文件大小： | 363K |
| 代理商： | ADE7762ARW-RL |
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ADE7762
Preliminary Technical Data
HPF AND OFFSET EFFECTS
Figure 27 shows the effect of offsets on the active power
calculation. An offset on the current channel and voltage
channel contributes a dc component after multiplication as
shown in Figure 27. Since this dc component is extracted by the
LPF and is used to generate the active power information for
each phase, the offsets can contribute a constant error to the
total active power calculation. The HPF in the current channels
avoids this problem easily. By removing the offset from at least
one channel, no error component can be generated at dc by the
multiplication. Error terms at cos(ωt) are removed by the LPF
and the digital-to-frequency conversion (see the Digital-to-
Frequency Conversion) section.
Rev. PrB | Page 20 of 28
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t
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× I
DC COMPONENT (INCLUDING ERRORTERM)
IS EXTRACTED BYTHE LPF FOR REAL
POWER CALCULATION
2
ω
FREQUENCY – RAD/S
2
V × I
0
0
Figure 27. Effect of Channel Offset on the Active Power Calculation
The HPF in the current channels has an associated phase response
that is compensated for on-chip. Figure 28 and Figure 29 show the
phase error between channels with the compensation network.
The ADE7762 is phase compensated up to 1 kHz as shown. This
ensures correct active harmonic power calculation even at low
power factors.
Figure 28. Phase Error between Channels (0 Hz to 1 kHz)
Figure 29. Phase Error Between Channels (40 Hz to 70 Hz)
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| ADE7762ARWZ | 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:* |
| 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 |
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| 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 |
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