参数资料
| 型号： | EVAL-ADE7762EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 26/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADE7762 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 已用 IC / 零件： | ADE7762 |
| 已供物品： | 板 |
| 相关产品： | ADE7762ARWZ-ND - IC ENERGY METERING 3PHASE 28SOIC ADE7762ARWZ-RL-ND - IC ENERGY METERING 3PHASE 28SOIC |
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ADE7762
NO-LOAD THRESHOLD
The ADE7762 includes an innovative no-load threshold detection
scheme that detects if a current input, when multiplied with any
of the three voltage inputs, cannot create power larger than a no-
load threshold. This threshold represents 0.0075% of the full-
scale output frequency.
For example, if the A, B, and C voltage phases are 50% of full-
scale input and 120° apart, and Current Phase A is 10% of full
scale with a PF = 0, this detection scheme detects that VA × IA
The no-load threshold is given as 0.0075% of the full-scale
output frequency for each of the f 1 to 7 frequencies (see Table 10).
For example, for an energy meter with a 100 imp/kWh meter
constant using f 1 to 7 (4.49 Hz), the minimum output frequency
at F1 or F2 is 1.38 × 10 ?4 Hz. This is 2.21 × 10 ?3 Hz at CF
(16 × F1 Hz). In this example, the no-load threshold is equiva-
lent to 4.8 W of load, or a start-up current of 20.7 mA at 240 V.
Table 10. CF, F1, and F2 Minimum Frequency at No-Load
Threshold
is below the no-load threshold but that VB × IA and VC × IA are
not. Therefore, the ADE7762 does not detect a no-load threshold
for V A × I A and lets this phase contribute to the total power.
However, in the same voltage conditions, if Current Phase A is
0.0075% of full scale with a PF = 1, this detection scheme detects
that V A × I A is below the no-load threshold. Because V B × I A
and V C × I A are as well, V A × I A is detected as below the no-load
threshold, and its contribution to the total power is stopped.
SCF
0
1
0
1
0
1
0
1
S1
0
0
0
0
1
1
1
1
S0
0
0
1
1
0
0
1
1
F1, F2 Minimum (Hz)
6.92E ? 05
1.38E ? 04
3.46E ? 05
1.38E ? 04
1.57E ? 04
3.46E ? 05
1.73E ? 05
1.753 ? 05
CF Minimum (Hz)
1.11E ? 03
1.11E ? 03
1.11E ? 03
2.21E ? 03
2.51E ? 02
5.53E ? 04
5.53E ? 04
2.77E ? 04
Rev. 0 | Page 26 of 28
相关PDF资料 |
PDF描述 |
|---|---|
| EVAL-ADE7763ZEB | BOARD EVALUATION FOR ADE7763 |
| EVAL-ADE7816EBZ | BOARD EVALUATION FOR ADE7816 |
| EVAL-ADE7878EBZ | BOARD EVAL FOR ADE7878 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADE7763EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD DOCUMENTATION ADE7763 ENERGY METERING IC |
| EVAL-ADE7763ZEB | 功能描述:BOARD EVALUATION FOR ADE7763 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADE7816EBZ | 功能描述:BOARD EVALUATION FOR ADE7816 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADE7854EBZ | 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Boxed Product (Development Kits) |
| EVAL-ADE7858EBZ | 制造商:AD 制造商全称:Analog Devices 功能描述:Poly Phase Multifunction Energy Metering IC with per Phase Active and Reactive Powers |
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