- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄298814 > ADE7753ARSZRL (ANALOG DEVICES INC) SPECIALTY ANALOG CIRCUIT, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | ADE7753ARSZRL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | ROHS COMPLIANT, MO-150AE, SSOP-20 |
| 文件頁數(shù)： | 21/60頁 |
| 文件大?。?/td> | 938K |
| 代理商： | ADE7753ARSZRL |
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頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
ADE7753
Rev. C | Page 28 of 60
FREQUENCY (Hz)
0.4
ER
R
O
R
(%)
54
56
58
60
62
64
66
0.3
0.2
0.1
0.0
–0.1
–0.2
–0.3
–0.4
02875-0-059
Figure 60. Combined Gain Response of the HPF and Phase Compensation
ACTIVE POWER CALCULATION
Power is defined as the rate of energy flow from source to load.
It is defined as the product of the voltage and current wave-
forms. The resulting waveform is called the instantaneous
power signal and is equal to the rate of energy flow at every
instant of time. The unit of power is the watt or joules/sec.
Equation 9 gives an expression for the instantaneous power
signal in an ac system.
v(t) =
)
sin(
2
t
V
ω
×
(7)
i(t) =
)
sin(
2
t
I
ω
×
(8)
where:
V is the rms voltage.
I is the rms current.
)
(
)
(
)
(
t
i
t
v
t
p
×
=
)
2
cos(
)
(
t
VI
t
p
ω
=
(9)
The average power over an integral number of line cycles (n) is
given by the expression in Equation 10.
P =
∫
=
nT
VI
dt
t
p
nT 0
)
(
1
(10)
where:
T is the line cycle period.
P is referred to as the active or real power.
Note that the active power is equal to the dc component of the
instantaneous power signal p(t) in Equation 8, i.e., VI. This is
the relationship used to calculate active power in the ADE7753.
The instantaneous power signal p(t) is generated by multiplying
the current and voltage signals. The dc component of the
instantaneous power signal is then extracted by LPF2 (low-pass
filter) to obtain the active power information. This process is
illustrated in Figure 61.
INSTANTANEOUS
POWER SIGNAL
p(t) = v
×i-v×i×cos(2ωt)
ACTIVE REAL POWER
SIGNAL = v
× i
0x19999A
VI
0xCCCCD
0x00000
CURRENT
i(t) = 2
×i×sin(ωt)
VOLTAGE
v(t) = 2
×v×sin(ωt)
02875-0-060
Figure 61. Active Power Calculation
Since LPF2 does not have an ideal “brick wall” frequency
response—see Figure 62, the active power signal has some
ripple due to the instantaneous power signal. This ripple is
sinusoidal and has a frequency equal to twice the line frequency.
Because the ripple is sinusoidal in nature, it is removed when
the active power signal is integrated to calculate energy—see the
Energy Calculation section.
FREQUENCY (Hz)
–24
1
dB
–20
3
10
30
100
–12
–16
–8
–4
0
02875-0-061
Figure 62. Frequency Response of LPF2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADEX-R10+ | 10 MHz - 1000 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, 8.3 dB CONVERSION LOSS-MAX |
| ADF08S | SLIDE DIP SWITCH-8SWITCHES, SPST, LATCHED,SURFACE MOUNT-STRAIGHT |
| ADF09A-KG-TAXB3-R | 9 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, SOLDER |
| ADF7011BRUZ-RL7 | SPECIALTY TELECOM CIRCUIT, PDSO24 |
| ADF7011BRUZ-RL | SPECIALTY TELECOM CIRCUIT, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADE7753-ARSZRL | 制造商:Analog Devices 功能描述: |
| ADE7753XRS | 制造商:Analog Devices 功能描述: |
| ADE7754 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Poly-phase Multi-Function Energy Metering IC with Serial Port |
| ADE7754AR | 制造商:Analog Devices 功能描述:Energy Measurement 24-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:THREE PHASE ENERGY METER IC W/WATT & VA - Bulk 制造商:Analog Devices 功能描述:IC ENERGY METER |
| ADE7754ARRL | 制造商:Analog Devices 功能描述:Energy Measurement 24-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:THREE PHASE ENERGY METER IC W/WATT & VA - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。