資料介紹
Table of Contents
CN0240 Evaluation Board Guide
Overview
CN0240 is a circuit that monitors bidirectional current from sources with dc voltages of up to ±270 V with less than 1% linearity error. The load current passes through a shunt resistor, which is external to the circuit. The shunt resistor value is chosen so that the shunt voltage is approximately 100 mV at maximum load current.
AD629 is a difference amplifier with a very high input, common-mode voltage range. It is a precision device that accurately measures and buffers (G = 1) a small differential input voltage and rejects large positive common-mode voltages up to 270 V. The output of AD629 is then amplified by a factor of 100 through the dual, precision rail-to-rail output operational amplifier AD8622.
AD8475 is a fully differential, attenuating amplifier with integrated precision gain resistors. This funnel amplifier attenuates the signal (G = 0.4), converts it from single-ended to differential, and level shifts the signal to satisfy the analog input voltage range of the AD7170, a very low power 12-bit sigma-delta ADC. The measurement result from the AD7170 is provided as a digital code utilizing a simple 2-wire, SPI-compatible serial interface.
ADuM5402 is a quad channel isolator that provides galvanic isolation for the circuit. This is not only for protection but to isolate the downstream circuitry from the high common-mode voltage. In addition to isolating the output data, the digital isolator can also supply isolated +5 V for the circuit. The reference voltages for the circuit is supplied by the ADR435 precision XFET? reference. It features low noise, high accuracy, and low temperature drift performance.
The EVAL-CN0240-SDPZ Board connects to ADI’s System Demonstration Platform (SDP) and is powered by a +6 V supply or +6 V “wall wart”.
Required Equipment
- EVAL-SDP-CB1Z Controller Board (SDP-B Board)
- Power Supply
- 6 V @ 1 A or 6 V “Wall wart”
- Dual Power Supply
- +15 V and -15 V @ 10 mA
- PC with the following Minimum Requirements
- Windows 7 (32-bit), Windows Vista (32-bit) or Windows XP
- USB interface
- Shunt resistor with maximum voltage of 100 mV at the maximum load current
- Source voltage and electronic load
General Setup
Block assignments
- The EVAL-CN0240-SDPZ (CN-0240 Board) connects to the EVAL-SDP-CB1Z (SDP-B Board) via the 120-Pin connector
- The EVAL-SDP-CB1Z (SDP-B Board) connects to the PC via the USB cable.
- Terminal block J1 is the SDP connector
- Terminal block J2 is the +6 V barrel connector for wall wart supply input
- Terminal block J3 is the 6 V DC power supply
- Terminal block J4 is the high voltage input terminals
- Rshunt and load will be connected across these input terminals as indicated in test setup below
- Terminal block J5 is the input terminal for the dc supplies +15 V and -15 V
- Terminal block J6 is the test point for SPI data lines
Test setup
- Connect the 120-pin connector on the EVAL-CN0240-SDPZ Evaluation Board to the connector marked “CON A” on the EVAL-SDP-CB1Z evaluation (SDP) board
- Connect a shunt resistor across the J4 input terminals with a load to ground as indicated in figure above
- With power to the supply off, connect a +6 V power supply to the pins marked “+6V” and “GND” on the board
- If available, a +6 V “wall wart” can be connected to the barrel connector on the board and used in place of the +6 V power supply
- Connect the USB cable supplied with the SDP board to the USB port on the PC
- Apply power to the +6 V supply (or “wall wart”) connected to EVAL-CN0240-SDPZ Evaluation Board
- Launch the evaluation software
- Connect the USB cable from the PC to the USB mini connector on the SDP board
Connect the system ground and the PCB isolated ground to guarantee correct voltage levels and operation. Test point 31 and test point 32 give access to the GND_ISO required to properly make this connection.
Installing the Evaluation Software
- Extract the file CN0240_Evaluation_Software.zip and open the file setup.exe.
NOTE: It is recommended that you install the CN0240 Evaluation Software to the default directory path C:/Program Files (x86)/Analog Devices/CN0240/ and all National Instruments products to C:/Program Files/National Instruments/
- Click Next to view the installation review page
- Click Next to start the installation
- Upon completion of the installation of the CN-0240 Evaluation Software, the installer for the ADI SDP Drivers will execute.
NOTE: It is recommended that you close all other applications before clicking “Next”. This will make it possible to update relevant system files without having to reboot your computer.
- Press “Next” to set the installation location for the SDP Drivers.
It is recommended that you install the drivers to the default directory path
C:/Program Files/Analog Devices/SDP/Drivers
- Press “Install” to install the SDP Drivers and complete the installation of all software. Click “Finish” when done.
Using the Evaluation Software
Main Window
- Connect Button - Starts the connection between the CN0240 Evaluation Board and SDP-B Controller Board.
- Disconnect Button - Ends the connection between the CN0240 Evaluation Board and SDP-B Controller Board
- Data Acquisition Controls
- Select SDP Connector - Selects which 120-pin connection of the SDP-B Board to use
- Shunt voltage - Shunt voltage measurement from shunt resistor
- Sample Data - Start acquisition of measurement data
- Remove Data Point - Remove a data point from samples
- Calculate errors - Calculate conversion errors in ADC
- Save Data - Save measurement data to file
- Clear Data - Clear all data collected from the chart history
- Sample Data Graph Tab - Shows the XY plot of ADC code and output error (%) with respect to the shunt voltage
- Plot Options - Edit plot display and options like interpolation and color of output waveform
- Configure Tab
- SDP Connector - Selects which 120-pin connection of the SDP-B Board to use
- Flash LED - Flashes the LED on the SDP controller board
- Read Firmware - Reads the firmware of CN0240 Evaluation Board
- Quit Button - Closes the evaluation software
Running the System
- Open the CN0240.exe application from the default installation location
- Set the correct connector and click the Connect Button
- Upon successful connection, set the desired input signal parameters such as shunt voltage
- Start and control data acquisition through the data acquisition control buttons
- Output data will be shown in the graph. Edit graph through plot options and check boxes provided
- Click Disconnect if finished
- Click Quit to exit the program
More Information and Useful Links
Schematic, PCB Layout, Bill of Materials
EVAL-CN0240-SDPZ Design & Integration Files
- Schematics
- PCB Layout
- Bill of Materials
- PADS project
End of Document
- 兆易創(chuàng)新GD32C10x系列開發(fā)板例程及評估板用戶指南
- 兆易創(chuàng)新GD32C11x系列開發(fā)板例程及評估板用戶指南
- MIC45404評估板用戶指南 18次下載
- MIC2128評估板用戶指南 12次下載
- PAC1934評估板用戶指南 5次下載
- CN0364評估板和軟件用戶指南
- CN0370評估板和軟件用戶指南
- CN0372評估板和軟件用戶指南
- CN0376評估板指南
- CN0385評估板和軟件用戶指南
- CN0254評估板指南
- CN0263評估板指南
- 基于CN-0240電流檢測的參考設(shè)計
- MCP9600基礎(chǔ)知識及評估板用戶指南
- MCP3903評估板用戶指南
- 迅為RK3568開發(fā)板驅(qū)動開發(fā)指南-輸入子系統(tǒng) 575次閱讀
- RZ/G2L開發(fā)板使用指南(上) 873次閱讀
- 如何在RZ/V2L評估板套件上使用AI SDK 768次閱讀
- 基于CW32L083評估板的簡易低功耗功能測試 666次閱讀
- 高頻放大器評估板 620次閱讀
- 系統(tǒng)演示平臺簡化了從評估到原型設(shè)計的過渡 646次閱讀
- 為MAX7651評估板配置Keil μVision IDE 1029次閱讀
- 自制低成本開發(fā)板/評估板學(xué)習(xí)教程 1329次閱讀
- CPK-RA6M4評估板入門指南(六) 2169次閱讀
- CPK-RA6M4評估板入門指南(五) 2256次閱讀
- CPK-RA6M4評估板入門指南(四) 1236次閱讀
- CPK-RA6M4評估板入門指南(一) 1355次閱讀
- 米爾科技 Beetle IoT 評估板概述 1189次閱讀
- 電子印刷電路板初步設(shè)計和開發(fā)階段的指南 5830次閱讀
- 帶電池短路保護(hù)的一款可靠復(fù)合視頻傳輸解決方案 2355次閱讀
下載排行
本周
- 1電子電路原理第七版PDF電子教材免費下載
- 0.00 MB | 1491次下載 | 免費
- 2單片機(jī)典型實例介紹
- 18.19 MB | 95次下載 | 1 積分
- 3S7-200PLC編程實例詳細(xì)資料
- 1.17 MB | 27次下載 | 1 積分
- 4筆記本電腦主板的元件識別和講解說明
- 4.28 MB | 18次下載 | 4 積分
- 5開關(guān)電源原理及各功能電路詳解
- 0.38 MB | 11次下載 | 免費
- 6100W短波放大電路圖
- 0.05 MB | 4次下載 | 3 積分
- 7基于單片機(jī)和 SG3525的程控開關(guān)電源設(shè)計
- 0.23 MB | 4次下載 | 免費
- 8基于AT89C2051/4051單片機(jī)編程器的實驗
- 0.11 MB | 4次下載 | 免費
本月
- 1OrCAD10.5下載OrCAD10.5中文版軟件
- 0.00 MB | 234313次下載 | 免費
- 2PADS 9.0 2009最新版 -下載
- 0.00 MB | 66304次下載 | 免費
- 3protel99下載protel99軟件下載(中文版)
- 0.00 MB | 51209次下載 | 免費
- 4LabView 8.0 專業(yè)版下載 (3CD完整版)
- 0.00 MB | 51043次下載 | 免費
- 5555集成電路應(yīng)用800例(新編版)
- 0.00 MB | 33562次下載 | 免費
- 6接口電路圖大全
- 未知 | 30320次下載 | 免費
- 7Multisim 10下載Multisim 10 中文版
- 0.00 MB | 28588次下載 | 免費
- 8開關(guān)電源設(shè)計實例指南
- 未知 | 21539次下載 | 免費
總榜
- 1matlab軟件下載入口
- 未知 | 935053次下載 | 免費
- 2protel99se軟件下載(可英文版轉(zhuǎn)中文版)
- 78.1 MB | 537793次下載 | 免費
- 3MATLAB 7.1 下載 (含軟件介紹)
- 未知 | 420026次下載 | 免費
- 4OrCAD10.5下載OrCAD10.5中文版軟件
- 0.00 MB | 234313次下載 | 免費
- 5Altium DXP2002下載入口
- 未知 | 233046次下載 | 免費
- 6電路仿真軟件multisim 10.0免費下載
- 340992 | 191183次下載 | 免費
- 7十天學(xué)會AVR單片機(jī)與C語言視頻教程 下載
- 158M | 183277次下載 | 免費
- 8proe5.0野火版下載(中文版免費下載)
- 未知 | 138039次下載 | 免費
評論
查看更多