参数资料
型号: ADE5169ASTZF62
厂商: Analog Devices Inc
文件页数: 53/156页
文件大小: 0K
描述: IC METER/8052/RTC/LCD DR 64LQFP
标准包装: 1
输入阻抗: *
测量误差: *
电压 - 高输入/输出: *
电压 - 低输入/输出: *
电流 - 电源: *
电源电压: *
测量仪表类型: *
工作温度: *
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
产品目录页面: 797 (CN2011-ZH PDF)
Data Sheet
For calibration, a first measurement should be done on I PA by
setting the SEL_I_CH bits (Bits[5:4]) to 0b01 in the CALMODE
register (Address 0x3D). This measurement should be compared
to the measurement on I PB . Measuring I PB can be forced by setting
the SEL_I_CH bits (Bits[5:4]) to 0b10 in the CALMODE register
(Address 0x3D). The gain error between these two measurements
can be evaluated using the following equation:
ADE5166/ADE5169/ADE5566/ADE5569
10
0
–10
–20
Error (%) =
Measurement ( I PB ) ? Measurement ( I PA )
Measuremen t ( I PA )
–30
The two channels, I PA and I PB , can then be matched by writing
–40
–Error(%)/(1 + Error(%)) × 2 12 to the IBGAIN register
(Address 0x1C). This matching adjustment is valid for all energy
–50
100
1000
measurements made by the ADE5166/ADE5169, including
active power, reactive power (the ADE5169 only), apparent
power, and I rms .
di/dt CURRENT SENSOR AND DIGITAL INTEGRATOR
(ADE5169/ADE5569 ONLY)
The di/dt sensor, a feature available for the ADE5169/ADE5569,
detects changes in the magnetic field caused by ac currents.
Figure 50 shows the principle of a di/dt current sensor.
FREQUENCY (Hz)
Figure 51. Combined Gain Response of the Digital Integrator and
Phase Compensator
–88.0
–88.5
–89.0
–89.5
MAGNETIC FIELD CREATED BY CURRENT
(DIRECTLY PROPORTIONAL TO CURRENT)
–90.0
–90.5
+ EMF (ELECTROMOTIVE FORCE)
10 2
10 3
– INDUCED BY CHANGES IN
MAGNETIC FLUX DENSITY (di/dt)
Figure 50. Principle of a di/dt Current Sensor
The flux density of a magnetic field induced by a current is directly
proportional to the magnitude of the current. The changes in the
magnetic flux density passing through a conductor loop generate
an electromotive force (EMF) between the two ends of the loop.
The EMF is a voltage signal that is proportional to the di/dt of the
current. The voltage output from the di/dt current sensor is deter-
mined by the mutual inductance between the current-carrying
conductor and the di/dt sensor. The current signal needs to be
recovered from the di/dt signal before it can be used. An integrator
is, therefore, necessary to restore the signal to its original form.
The ADE5169/ADE5569 has a built-in digital integrator to recover
the current signal from the di/dt sensor. The digital integrator
on the current channel is switched off by default when the
ADE5169/ADE5569 is powered up. Setting the INTE bit (Bit 5)
in the MODE1 register (Address 0x0B) turns on the integrator.
Figure 51 to Figure 54 show the gain and phase response of the
FREQUENCY (Hz)
Figure 52. Combined Phase Response of the Digital Integrator and
Phase Compensator
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
–5.5
–6.0
40 45 50 55 60 65 70
FREQUENCY (Hz)
Figure 53. Combined Gain Response of the Digital Integrator and
Phase Compensator (40 Hz to 70 Hz)
digital integrator.
Rev. D | Page 53 of 156
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