- 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)： | 28/60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頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁當(dāng)前第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 34 of 60
90°. The resulting waveform is called the instantaneous reactive
power signal. Equation 25 gives an expression for the instanta-
neous reactive power signal in an ac system when the phase of
the current channel is shifted by +90°.
The average reactive power over an integral number of lines (n)
is given in Equation 26.
v(t) =
)
sin(
2
θ
+
ωt
V
(23)
∫
=
nT
VI
dt
t
Rp
nT
RP
0
)
sin(
)
(
1
θ
(26)
i(t) =
)
sin(
2
t
I
ω
π
+
ω
=
′
2
sin
2
)
(
t
I
t
i
(24)
where:
T is the line cycle period.
RP is referred to as the reactive power.
Note that the reactive power is equal to the dc component of the
instantaneous reactive power signal Rp(t) in Equation 25. This
is the relationship used to calculate reactive power in the
ADE7753. The instantaneous reactive power signal Rp(t) is
generated by multiplying Channel 1 and Channel 2. In this case,
the phase of Channel 1 is shifted by +90°. The dc component of
the instantaneous reactive power signal is then extracted by a
low-pass filter in order to obtain the reactive power informa-
tion. Figure 71 shows the signal processing in the reactive
power calculation in the ADE7753.
where:
θ is the phase difference between the voltage and current
channel.
V is the rms voltage.
I is the rms current.
Rp(t) = v(t) × i’(t)
(25)
Rp(t) = VI sin (θ) + VI sin(2ωt + θ)
ZERO-CROSSING
DETECTION
MULTIPLIER
+
LVARENERGY [23:0]
ACCUMULATE REACTIVE
ENERGY IN INTERNAL
REGISTER AND UPDATE
THE LVARENERGY REGISTER
AT THE END OF LINECYC HALF
LINE CYCLES
INSTANTANEOUS REACTIVE
POWER SIGNAL (Rp(t))
23
0
49
0
02875-0-070
LPF1
FROM
CHANNEL 2
ADC
LINECYC [15:0]
LPF2
CALIBRATION
CONTROL
π
2
V
I
90 DEGREE
PHASE SHIFT
Figure 71. Reactive Power Signal Processing
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)。