参数资料
型号: ADE7569ASTZF16
厂商: Analog Devices Inc
文件页数: 58/136页
文件大小: 0K
描述: IC ENERGY METER MCU 16K 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
ADE7566/ADE7569
Integration Time Under Steady Load
As mentioned in the Active Energy Calculation, the discrete
time sample period (T) for the accumulation register is 1.22 μs
(5/CLKIN). With full-scale sinusoidal signals on the analog
inputs and the VARGAIN and VARDIV registers set to 0x000,
the integration time before the reactive energy register
overflows is calculated in Equation 26.
REACTIVE ENERGY
Preliminary Technical Data
Time =
0xFFFF, FFFF, FFFF
0xCCCCD
× 1 . 22 μ s = 409 . 6 sec = 6 . 82 min (26)
NO-LOAD
THRESHOLD
REACTIVE POWER
When VARDIV is set to a value different from 0, the integration
time varies, as shown in Equation 27.
Time = Time WDIV = 0 × VARDIV
Reactive Energy Accumulation Modes
VAR Signed Accumulation Mode
(27)
NO-LOAD
THRESHOLD
NO-LOAD
THRESHOLD
The ADE7569 reactive energy default accumulation mode is a
signed accumulation based on the reactive power information.
VAR Anti-Tamper Accumulation Mode
The ADE7569 is placed in VAR anti-tamper accumulation mode
by setting the SAVARM bit in the ACCMODE Register (0x0F). In
ACTIVE POWER
NO-LOAD
THRESHOLD
this mode, the reactive power is accumulated depending on the
sign of the active power. When active power is positive, the
reactive power is added as it is to the reactive energy register.
APSIGN FLAG
POS NEG
INTERRUPT STATUS REGISTERS
POS
When active power is negative, the reactive power is subtracted
from the reactive energy accumulator (see Figure 59). The CF
pulse also reflects this accumulation method when in this
mode. The default setting for this mode is off. Transitions in the
direction of power flow and no-load threshold are active in this
mode.
Rev. PrA | Page 58 of 136
Figure 59. Reactive Energy Accumulation in
Anti-Tamper Accumulation Mode
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