- 您現(xiàn)在的位置：買賣IC網 > PDF目錄375253 > ADE7761A (Analog Devices, Inc.) Energy Metering IC with On-Chip Fault and Missing Neutral Detection PDF資料下載
參數(shù)資料
| 型號： | ADE7761A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| 中文描述： | 電能計量IC片故障檢測和失蹤中性 |
| 文件頁數(shù)： | 20/24頁 |
| 文件大小： | 367K |
| 代理商： | ADE7761A |
ADE7761A
Missing Neutral Gain Calibration
When the ADE7761A is in missing neutral mode, the energy is
bill based on the active current input signal level. The frequency
outputs in this mode can be calibrated with the MISCAL analog
input pin. In this mode, applying a dc voltage of 330 mV on
MISCAL is equivalent to applying, in normal mode, a pure sine
wave on the voltage input with a peak value of 330 mV. The
MISCAL input can vary from 0 V to 660 mV (see the Analog
Inputs section). When set to 0 V, the frequency outputs are
close to zero. When set to 660 mV dc, the frequency outputs are
twice that when MISCAL is at 330 mV dc. In other words,
Equation 7 can be used in missing neutral mode by replacing
V2
rms
by MISCAL
rms
/√2.
,
MISCAL
V
Gain
×
×
×
Rev. 0 | Page 20 of 24
Example
In normal mode, ac voltages of ±330 mV peak are applied to V1
and V2, and then the expected output frequency on F
1
and F
2
is
calculated as:
Gain =1 ; PGA =0
F
1–4
= 1.7 Hz, SCF = S1 = S0 = 0
V1 = rms of 330 mV peak ac = 0.33/√2 V
V2 = rms of 330 mV peak ac = 0.33/√2 V
V
REF
= 2.5 V (nominal reference value)
.
,
2
1
=
Frequency
F
F
Hz
084
.
5
×
2
2
Hz
7
2
33
.
×
33
×
.
×
70
=
×
2
4
1
2
1
2
/
1
70
.
REF
rms
rms
V
F
Frequency
F
F
×
=
(8)
CF Frequency
=
F
1
F
2
Frequency
× 64 = 5.4 Hz
In missing neutral mode, the ac voltage of ±330 mV peak is
applied to V1, no signal is connected on V2, and a 330 mV dc
input is applied to MISCAL. With the ADE7761A in the same
configuration as the previous example, the expected output
frequencies on CF, F
1
, and F
2
are
where:
F
1
,
F
2
Frequency
is the output frequency on
F
1
and
F
2
(Hz).
V1
rms
is the differential rms voltage signal on Channel 1 (V).
MISCAL
rms
is the differential rms voltage signal on the MISCAL
pin (V).
Gain
is 1 or 16, depending on the PGA gain selection made
using logic input PGA.
V
REF
is the reference voltage (2.5 V ± 8%) (V).
F
1-4
is one of four possible frequencies selected by using the
logic inputs S0 and S1 (see Table 6).
Hz
084
.
5
2
Hz
7
×
2
/
33
×
.
×
33
.
×
70
.
,
2
=
=
Frequency
F
F
2
1
CF Frequency
=
F
1
,
F
2
Frequency
× 64 = 5.4 Hz
相關PDF資料 |
PDF描述 |
|---|---|
| ADE7761AARS | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARS-REF | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARS-RL | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARSZ | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARSZ-RL | Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADE7761AARS | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP 制造商:Rochester Electronics LLC 功能描述: |
| ADE7761AARS-REF | 制造商:AD 制造商全稱:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARS-RL | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP T/R |
| ADE7761AARSZ | 功能描述:IC ENERGY METERING 1PHASE 20SSOP 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:* |
| ADE7761AARSZ-RL | 功能描述:IC ENERGY METERING 1PHASE 20SSOP 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:* |
發(fā)布緊急采購，3分鐘左右您將得到回復。