- 您現在的位置：買賣IC網 > PDF目錄373980 > ADE7752BARWZ (ANALOG DEVICES INC) Polyphase Energy Metering IC with Pulsed Output PDF資料下載
參數資料
| 型號： | ADE7752BARWZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Polyphase Energy Metering IC with Pulsed Output |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封裝： | LEAD FREE, MS-013AD, SOIC-24 |
| 文件頁數： | 23/27頁 |
| 文件大小： | 342K |
| 代理商： | ADE7752BARWZ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當前第23頁第24頁第25頁第26頁第27頁
Preliminary Technical Data
ADE7752B
Example 3
In this example, the ADE7752B is connected to a 3-phase 3-
wire delta service as shown in Figure 21. The total active energy
calculation processed in the ADE7752B can be expressed as
Rev. PrA | Page 23 of 27
Total Active Power
= (
V
A
–
V
C
) ×
I
A
+ (
V
B
–
V
C
) ×
I
B
where:
V
A
,
V
B
, and
V
C
represent the voltage on phase A, phase B, and
phase C, respectively.
I
A
and I
B
represent the current on phase A and phase B,
respectively.
As the voltage and current inputs respect Equations 5 and 6, the
total active power (
P
) is
(
) (
(
cos
2
t
I
l
A
)
(
) (
×
)
)
(
)
π
3
+
ω
×
×
×
π
3
+
ω
×
×
π
3
+
ω
×
×
+
ω
×
×
×
π
3
+
ω
×
×
ω
×
×
=
+
=
2
cos
2
4
cos
2
2
cos
2
4
cos
2
cos
2
t
I
t
V
v
t
V
t
V
t
V
P
IBN
IBP
VC
VB
IAN
IAP
VC
VA
P
l
B
l
C
l
B
l
C
l
A
(15)
For simplification, assume that
Φ
A
=
Φ
B
=
Φ
C
= 0 and
V
A
=
V
B
=
V
C
=
V
. The preceding equation becomes
(
)
(
)
π
3
+
ω
×
π
+
ω
×
×
×
×
+
ω
×
π
3
+
ω
×
2
×
×
×
=
2
cos
sin
3
sin
2
cos
2
sin
3
sin
2
t
t
I
V
t
t
I
V
P
l
l
B
l
l
A
(16)
P
then becomes
π
3
+
ω
+
×
×
+
π
3
+
ω
+
2
×
×
=
2
sin
3
sin
2
2
sin
3
sin
t
I
VBN
t
I
VAN
P
l
B
l
A
(17)
where:
VAN
=
V
× sin(2π/3).
VBN
=
V
× sin(π/3).
As the LPF on each channel eliminates the 2
ω
l
component of
the equation, the active power measured by the ADE7752B is
2
3
2
3
×
×
+
×
×
=
B
BN
A
AN
I
V
I
V
P
(18)
If full-scale ac voltage of ±500 mV peak is applied to the voltage
channels and current channels, the expected output frequency
is calculated as follows:
value
reference
nominal
V
4
V
0
IC
V
rms
V
2
5
ac
peak
V
m
500
IC
IB
IA
V
V
1
1
S
0
S
SCF
,
Hz
60
.
F
REF
CN
BN
AN
7
1
=
=
=
=
=
=
=
=
=
=
=
=
=
(19)
Note that if the on-chip reference is used, actual output
frequencies can vary from device to device due to reference
tolerance of ±8%.
Hz
139
.
2
3
4
2
2
60
.
2
5
×
5
×
181
.
2
Freq
=
×
×
×
×
×
=
(20)
Table 6 shows a complete listing of all maximum output
frequencies when using all three channel inputs.
Table 6: Maximum Output Frequency on F1 and F2
SCF
S1
S0
Inputs (Hz)
0
0
0
0.93
1
0
1
1.86
0
0
1
0.46
1
0
1
1.86
0
1
0
2.10
1
1
0
0.46
0
1
1
0.23
1
1
1
0.23
Maximum
Frequency for AC
Maximum
Frequency for DC
Inputs (Hz)
1.85
3.71
0.93
3.71
4.20
0.93
0.47
0.47
FREQUENCY OUTPUT CF
The pulse output calibration frequency (CF) is intended for use
during calibration. The output pulse rate on CF can be up to 64×
the pulse rate on F1 and F2. Table 7 shows how the two
frequencies are related, depending on the states of the logic
inputs S0, S1, and SCF. Because of its relatively high pulse rate,
the frequency at this logic output is proportional to the
instantaneous active power. As is the case with F1 and F2, the
frequency is derived from the output of the low-pass filter after
multiplication. However, since the output frequency is high, this
active power information is accumulated over a much shorter
time. Thus, less averaging is carried out in the digital-to-
frequency conversion. The CF output is much more responsive
to power fluctuations with much less averaging of the active
power signal (see Figure 15).
Table 7. Maximum Output Frequency on CF
SCF
S1
S0
F
1–7
(Hz)
CF Maximum for AC Signals (Hz)
0
0
0
2.3
16 × F1, F2 = 14.88
1
0
0
4.61
8 × F1, F2 = 14.88
0
0
1
1.15
32 × F1, F2 = 14.88
1
0
1
4.61
16 × F1, F2 = 29.76
0
1
0
5.22
160 × F1, F2 = 336
1
1
0
1.15
16 × F1, F2 = 7.36
0
1
1
0.58
32 × F1, F2 = 7.36
1
1
1
0.58
16 × F1, F2 = 3.68
相關PDF資料 |
PDF描述 |
|---|---|
| ADE7752BARWZ-RL | Polyphase Energy Metering IC with Pulsed Output |
| ADE7753 | Active and Apparent Energy Metering IC with di/dt sensor interface |
| ADE7753ARS | Active and Apparent Energy Metering IC with di/dt sensor interface |
| ADE7753ARSRL | Active and Apparent Energy Metering IC with di/dt sensor interface |
| ADE7754 | ADE7754 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| ADE7753_10 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Multifunction Metering IC with di/dt Sensor Interface |
| ADE7753ARS | 制造商:Analog Devices 功能描述:Single Phase Multifunction Metering IC 20-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:IC SEMICONDUTOR ((NS)) |
| ADE7753ARSRL | 制造商:Analog Devices 功能描述:Single Phase Multifunction Metering IC 20-Pin SSOP T/R 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發布緊急采購，3分鐘左右您將得到回復。