参数资料
型号: CS5467-ISZR
厂商: Cirrus Logic Inc
文件页数: 16/46页
文件大小: 0K
描述: IC ENERGY METERING 1PHASE 28SSOP
标准包装: 1,000
输入阻抗: 30 千欧
测量误差: 0.1%
电压 - 高输入/输出: 0.8V
电压 - 低输入/输出: 0.2V
电流 - 电源: 3.5mA
电源电压: 4.75 V ~ 5.25 V
测量仪表类型: 单相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 带卷 (TR)
配用: 598-1555-ND - BOARD EVAL FOR CS5467 ADC
CS5467
V1 ACOFF
(V2 ACOFF )
P1 OFF (P2 OFF )
I1 ACOFF
(I2 ACOFF )
Figure 5. Low-rate Calculations
4.8 Power and Energy Results
The instantaneous voltage and current samples are
S 2 – P Active
Q WB =
P Active
multiplied to obtain the instantaneous power ( P1 , P2 )
(see Figure 3 and 4 ). The product is then averaged over
N conversions to compute active power ( P1 AVG ,
P2 AVG ).
Apparent power ( S1 , S2 ) is the product of RMS voltage
and current as shown:
S = V RMS ? I RMS
Power factor ( PF1 , PF2 ) is active power divided by ap-
parent power as shown below. The sign of the power
factor is determined by the active power.
PF = ------------------
S
Wideband reactive power ( Q1 WB , Q2 WB ) is calculated
by doing a vector subtraction of active power from ap-
parent power.
P1 AVG
2
Quadrature power ( Q1 , Q2 ) are sample rate results ob-
tained by multiplying instantaneous current ( I1 , I2 ) by in-
stantaneous quadrature voltage ( V1Q , V2Q ) which are
created by phase shifting instantaneous voltage ( V1 ,
V2 ) 90 degrees using first-order integrators. (See Fig-
ure 3 and 4 ). The gain of these integrators is inversely
related to line frequency, so their gain is corrected by
the Epsilon register, which is based on line frequency.
Reactive power ( Q1 Avg , Q2 AvG ) is generated by inte-
grating the instantaneous quadrature power over N
samples.
Active power ( P1 AVG , P2 AVG ), apparent power ( S1 , S2 ),
and reactive power ( Q1 AVG , Q2 AVG ) of the two channels
are summed up and then divided by 2. The calculation
results are placed in E PULSE , S PULSE , and Q PULSE reg-
isters which can be configured to drive energy pulse
outputs. (See Figure 6 .)
OVF=
+
÷2
E PULSE
×
+
E ACCM
P2 AVG
S1
OVF=
+
÷2
S PULSE
×
+
S ACCM
S2
Q1 AVG
OVF=
+
÷2
Q PULSE
×
+
Q ACCM
Q2 AVG
PulseRate
( E1, E2, E3 )
Figure 6. Two-channel Power Summation
16
DS714F3
相关PDF资料
PDF描述
AISC-0402-1NOJ-T INDUCTOR WW CERAM 1.0NH 0402
S5KC-13 RECTIFIER GPP SMD 800V 5A SMC
ACC43DRXH CONN EDGECARD 86POS .100 DIP SLD
GSA50DTMZ-S664 CONN EDGECARD 100PS R/A .125 SLD
A7PSB-1510M CABLE D-SUB-AMM15B/AE15M/AFM15B
相关代理商/技术参数
参数描述
CS5471 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:DUAL CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
CS5471-BS 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cirrus Logic 功能描述:
CS5471-BSR 制造商:Rochester Electronics LLC 功能描述:- Bulk
CS547233-ISZR 功能描述:模数转换器 - ADC IC 24-bit 2-ch Delta Sigma ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
CS547239-ISZ 制造商:Cirrus Logic 功能描述:C 24-BIT 2-CH DELTA SIGMA ADC - Bulk