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參數資料
| 型號： | ADE7752B |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Polyphase Energy Metering IC with Pulsed Output |
| 中文描述： | 多相電能計量IC脈沖輸出 |
| 文件頁數： | 11/27頁 |
| 文件大小： | 342K |
| 代理商： | ADE7752B |
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Preliminary Technical Data
ADE7752B
TERMINOLOGY
Measurement Error
The error associated with the energy measurement made by the
ADE7752B is defined by the following formula:
Rev. PrA | Page 11 of 27
%
–
100
Energy
True
Energy
True
7762
ADE
by
Registered
Energy
Error
Percentage
×
=
Error between Channels
The high-pass filter (HPF) in the current channel has a phase
lead response. To offset this phase response and equalize the
phase response between channels, a phase correction network is
placed in the current channel. The phase correction network
ensures a phase match between the current channels and
voltage channels to within ±0.1° over a range of 45 Hz to 65 Hz
and ±0.2° over a range of 40 Hz to 1 kHz (see Figure 25 and
Figure 26).
Power Supply Rejection (PSR)
This quantifies the ADE7752B measurement error as a
percentage of reading when the power supplies are varied.
For the ac PSR measurement, a reading at a nominal supply
(5 V) is taken. A 200 mV rms/100 Hz signal is then introduced
onto the supply and a second reading is obtained under the
same input signal levels. Any error introduced is expressed as a
percentage of reading. See definition for Measurement Error.
For the dc PSR measurement, a reading at nominal supplies
(5 V) is taken. The supply is then varied ±5% and a second
reading is obtained with the same input signal levels. Any error
introduced is again expressed as a percentage of reading.
ADC Offset Error
This refers to the dc offset associated with the analog inputs to
the ADCs. It means that with the analog inputs connected to
AGND, the ADCs still see an analog input signal offset.
However, because the HPF is always present, the offset is
removed from the current channel and the power calculation is
not affected by this offset.
Gain Error
The gain error of the ADE7752B is defined as the difference
between the measured output frequency (minus the offset) and
the ideal output frequency. The difference is expressed as a
percentage of the ideal frequency. The ideal frequency is
obtained from the ADE7752B transfer function (see the
Transfer Function section).
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相關代理商/技術參數 |
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| ADE7752BARW | 制造商:AD 制造商全稱:Analog Devices 功能描述:Polyphase Energy Metering IC with Pulsed Output |
| ADE7752BARW-RL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Polyphase Energy Metering IC with Pulsed Output |
| ADE7752BARWZ | 功能描述:IC ENERGY METERING 3PHASE 24SOIC 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:* |
| ADE7752BARWZ-RL | 功能描述:IC ENERGY METERING 3PHASE 24SOIC 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:* |
| ADE7753 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Active and Apparent Energy Metering IC with di/dt sensor interface |
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