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參數(shù)資料
| 型號： | ADE7763 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 電能質(zhì)量分析儀 |
| 英文描述： | Single-Phase Active and Apparent Energy Metering IC |
| 中文描述： | 單相有功功率和視在電能計(jì)量IC |
| 文件頁數(shù)： | 29/56頁 |
| 文件大?。?/td> | 1328K |
| 代理商： | ADE7763 |
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ADE7763
The active power signal (output of LPF2) can be rewritten as
Rev. A | Page 29 of 56
)
4
cos(
9
2
1
)
(
2
t
f
f
VI
VI
t
p
L
L
π
×
+
=
(18)
where
f
L
is the line frequency, for example, 60 Hz.
From Equation 13,
)
4
sin(
9
2
1
4
)
(
2
t
f
f
f
VI
VIt
t
E
L
L
L
π
π
×
+
=
(19)
Note that in Equation 19 there is a small ripple in the energy
calculation due to a sin(2ωt) component. This is shown graphi-
cally in Figure 60. The active energy calculation is represented
by the dashed, straight line and is equal to V × I × t. The sinu-
soidal ripple in the active energy calculation is also shown.
Because the average value of a sinusoid is 0, the ripple does not
contribute to the energy calculation over time. However, the
ripple might be observed in the frequency output, especially at
higher output frequencies. The ripple becomes larger as a
percentage of the frequency at larger loads and higher output
frequencies. This occurs because the integration or averaging
time in the energy-to-frequency conversion process is shorter at
higher output frequencies. Consequently, some of the sinusoidal
ripple in the energy signal is observable in the frequency output.
Choosing a lower output frequency at CF for calibration can
significantly reduce the ripple. Also, averaging the output
frequency by using a longer gate time for the counter achieves
the same results.
VI
–
sin(4
×π×
f
L
×
t)
4
×π×
f
L
(1+2
×
f
L
/8.9Hz)
E(t)
t
Vlt
0
Figure 60. Output Frequency Ripple
0
WDIV[7:0]
APOS[15:0]
WGAIN[11:0]
LPF1
+
+
LAENERGY[23:0]
ACCUMULATE ACTIVE
ENERGY IN INTERNAL
REGISTER AND UPDATE
THE LAENERGY REGISTER
AT THE END OF LINECYC
LINE CYCLES
OUTPUT
FROM
LPF2
FROM
CHANNEL 2
ADC
23
0
LINECYC[15:0]
48
0
%
ZERO CROSSING
DETECTION
CALIBRATION
CONTROL
Figure 61. Energy Calculation Line Cycle Energy Accumulation Mode
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| ADE7763ARS | Single-Phase Active and Apparent Energy Metering IC |
| ADE7763ARSRL | Single-Phase Active and Apparent Energy Metering IC |
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| ADG804YRM | 0.5 ohm CMOS 1.65 V TO 3.6 V 4-Channel Multiplexer |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| ADE7763ARSZ | 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(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:* |
| ADE7763ARSZ | 制造商:Analog Devices 功能描述:IC, SINGLE PHASE ENERGY METER, SSOP-20 |
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