参数资料
型号: ADE7518ASTZF16
厂商: Analog Devices Inc
文件页数: 62/128页
文件大小: 0K
描述: IC ENERGY METER MCU 16K 64LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
特色产品: ADE7518: Single-phase Energy-Measurement IC
标准包装: 160
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)
ADE7518
ENERGY REGISTER SCALING
The ADE7518 provides measurements of active, reactive, and
apparent energies that use separate paths and filtering for calcula-
tion. The difference in data paths may result in small differences
in LSB weight between active, reactive, and apparent energy
registers. These measurements are internally compensated so that
the scaling is nearly one to one. The relationship between these
registers is shown in Table 44.
ENERGY MEASUREMENT INTERRUPTS
The energy measurement part of the ADE7518 has its own
interrupt vector for the 8052 core, Vector Address 0x004B (see
the Interrupt Vectors section). The bits set in the Interrupt
Enable 1 SFR (MIRQENL, 0xD9), Interrupt Enable 2 SFR
(MIRQENM, 0xDA), and Interrupt Enable 3 SFR (MIRQENH,
0xDB) enable the energy measurement interrupts that are
allowed to interrupt the 8052 core. If an event is not enabled,
Table 44. Energy Registers Scaling
Line Frequency = 50 Hz Line Frequency = 60 Hz
VAR = 0.9952 × WATT VAR = 0.9949 × WATT
VA = 0.9978 × WATT VA = 1.0015 × WATT
Integrator
Off
Off
it cannot create a system interrupt.
The ADE interrupt stays active until the status bit that has created
the interrupt is cleared. The status bit is cleared when a zero is
written to this register bit.
VAR = 0.9997 × WATT
VA = 0.9977 × WATT
VAR = 0.9999 × WATT
VA = 1.0015 × WATT
On
On
Rev. 0 | Page 62 of 128
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