参数资料
型号: ADE7166ASTZF16
厂商: Analog Devices Inc
文件页数: 70/152页
文件大小: 0K
描述: IC ENERGY METER 1PHASE 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
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Integration Time Under Steady Load: Reactive Energy
As mentioned in the Active Energy Calculation section, the
discrete time sample period (T) for the accumulation register is
1.22 μs (5/MCLK). With full-scale sinusoidal signals on the
analog inputs and the VARGAIN register (Address 0x1E) and
the VARDIV register (Address 0x25) set to 0x000, the
integration time before the reactive energy register overflows is
calculated in Equation 26.
Time =
REACTIVE ENERGY
NO-LOAD
THRESHOLD
0xFFFF, FFFF, FFFF
0xCCCCD
× 1 . 22 μ s = 409 . 6 sec = 6 . 82 min (26)
REACTIVE POWER
When VARDIV is set to a value different from 0, the integration
time varies, as shown in Equation 27.
NO-LOAD
THRESHOLD
Time = Time WDIV = 0 × VARDIV
Reactive Energy Accumulation Modes
Var Signed Accumulation Mode
(27)
NO-LOAD
THRESHOLD
The ADE7169/ADE7569 reactive energy default accumulation
mode is a signed accumulation based on the reactive power
information.
Var Antitamper Accumulation Mode
ACTIVE POWER
NO-LOAD
THRESHOLD
The ADE7169/ADE7569 are placed in var antitamper
accumulation mode by setting the SAVARM bit in the ACCMODE
register (Address 0x0F). In this mode, the reactive power is
APSIGN FLAG
POS NEG
INTERRUPT STATUS REGISTERS
POS
accumulated depending on the sign of the active power. When
the active power is positive, the reactive power is added as it is
to the reactive energy register. When the active power is
negative, the reactive power is subtracted from the reactive
energy accumulator (see Figure 73). 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. B | Page 70 of 152
Figure 73. Reactive Energy Accumulation in
Antitamper Accumulation Mode
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