参数资料
| 型号： | EVAL-ADE7755ZEB |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7755 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADE7755 |
| 主要属性： | 最高 240 VAC，5 V 电源，监控器相位和中性线电流 |
| 次要属性： | 超过 IEC687/1036 标准，误差率低于 0.1%，故障输出 |
| 已供物品： | 板 |
| 相关产品： | ADE7755ARSZ-ND - IC ENERGY METERING 1PHASE 24SSOP ADE7755ARSZRL-ND - IC ENERGY METERING 1PHASE 24SSOP |
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Evaluation Board Documentation
AD7751/AD7755 Energy Metering IC
EVAL-AD7751/AD7755EB
FEATURES
Single +5 V Power Supply
Easy Connection of External Transducers via Screw
Terminals
Easy Modification of Signal Conditioning Components
Using PCB Sockets
Trim Pot for Analog Calibration of Meter Constant
LED Indicators on Logic Outputs for Fault (AD7751
Only), REVP and CF
Optically Isolated Output for Calibration/Test Purposes
External Reference Option Available for Reference
Evaluation
GENERAL DESCRIPTION
The AD7751 and AD7755 are high accuracy energy measurement
ICs. The part specifications surpass the accuracy requirements
as quoted in the IEC1036 standard. The AD7751 incorporates
a novel fault detection scheme that both warns of fault condi-
tions with the logic output FAULT but allows the AD7751 to
continue accurate billing during a fault event. The AD7751
by more than 12.5%. Billing is continued using the larger of the
two currents. The FAULT output is connected to an LED on
the evaluation board.
The AD7751 supplies average real power information on the
low frequency outputs F1 and F2. These logic outputs may be
used to directly drive an electromechanical counter or interface
to an MCU. The evaluation board provides screw connectors
for easy connection to an external counter. The CF logic output
gives instantaneous real power information. This output is in-
tended to be used for calibration purposes. The evaluation
board allows this logic output to be connected to an LED or
optoisolator. The REVP logic output goes high when negative
real power is detected. This causes an LED on the evaluation
board to switch on.
The AD7751/AD7755 evaluation board can easily be converted
into an energy meter by the addition of a local power supply and
the connection of the appropriate transducers. A large amount
of prototype area is made available on the evaluation board for
this purpose.
does this by continuously monitoring both the phase and neutral
(return) currents. A fault is indicated when these currents differ
FUNCTIONAL BLOCK DIAGRAM
AGND AVDD
V1A (AD7751)
DGND DVDD
VCC
V1A/NC*
NC* (AD7755)
F1
V1N
V1B/V1P
V1N (AD7751)
V1N (AD7755)
V1B (AD7751)
V1P (AD7755)
AD7751/
AD7755
74HC08
FAULT
REVP
CF
F2
V2N
V2P
VPLUS
AD780
H11L1
CFOUT
GND
*NC = NO CONNECT
PROTOTYPE
AREA
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 ? Analog Devices, Inc., 1999
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| EVAL-ADE7758ZEB | 功能描述:BOARD EVAL FOR AD7758 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 |
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