Cirrus-logic CRD5490 User Manual

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Copyright Cirrus Logic, Inc. 2012
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
CRD5490-Z
CRD5490-Z Power Monitor
Features
Easy-to-use Power Monitoring Reference Design
Plug one side into a wall outlet and an electric load
into the other side.
Read real time measurements on the PC GUI via
USB in seconds.
Real Time Measurements:
Line Voltage
Load Current
Active Power
Reactive Power
Apparent Power
Power Factor
Fundamental Line Frequency
Temperature
Operational Voltage 90VAC to 260VAC
Maximum RMS Load Current 15A
Factory Calibrated and Recalibration Capable
Compact AC/DC Buck Converter
Onboard PIC18 Microcontroller
Windows
®
GUI Software
Overview
The CRD5490-Z is designed to evaluate the functionality
and performance of the CS5490 power/energy
measurement device. The CRD5490-Z integrates an
efficient and compact AC/DC drop capacitor/buck
power supply, voltage and current sensors, and low-cost
USB MCU. This compact, complete power monitor
system integrates easily in any design evaluation.
The CRD5490-Z was designed with a graphical user
interface (GUI) for power measurements and calibration
execution. A full-featured GUI is provided to access real
time line voltage, load current, active power, reactive
power, apparent power, power factor, and temperature.
The software provides full access and control of the
CS5490 calibration and configuration without having to
learn specialized commands.
ORDERING INFORMATION
CRD5490-Z Reference Design
APR‘12
DS988RD1
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Summary of Contents

Page 1 - CRD5490-Z Power Monitor

Copyright  Cirrus Logic, Inc. 2012(All Rights Reserved)Cirrus Logic, Inc.http://www.cirrus.comCRD5490-ZCRD5490-Z Power MonitorFeatures• Easy-to-use P

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CRD5490-Z10 DS988RD13.3.1 Connection TabThe Connection tab displays the USB communication with CRD5490-Z board. At startup, the GUI attempts toestabli

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CRD5490-ZDS988RD1 113.3.2 Quick Measurements TabThe Quick Measurements tab displays reported power data from the CS5490 device in real time as continu

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CRD5490-Z12 DS988RD1The Connection, Graphics, and Quick Measurements tabs may be viewed with the conversions running, but thecontinuous conversions sh

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CRD5490-ZDS988RD1 13The charts’ scales will automatically adjust for the data captured. To zoom in on a portion of a chart, click in the chartand drag

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CRD5490-Z14 DS988RD13.3.4 Data Table TabThe Data Table tab displays the CS5490 power information in a table. Stop conversions before viewing the DataT

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CRD5490-ZDS988RD1 153.3.5 Calibration TabThe Calibration tab is used to write and display to the CS5490 offset and gain calibration registers. The bui

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CRD5490-Z16 DS988RD13.3.5.1 AC Offset / Gain RegisterIn the AC Offset and Gain fields, the AC offset and gain registers for all channels are displayed

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CRD5490-ZDS988RD1 174. Confirm that the initial conditions are configured as shown in Figure 17:5. Click the Quick Measurements tab to bring it forwar

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CRD5490-Z18 DS988RD18. Record the reference meter measurements after the setup has settled and before calibration is executed. SeeFigure 18.9. Click t

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CRD5490-ZDS988RD1 19If the calibration conditions (voltage and current) match the reference meter readings, click the Yes button.11. The gain register

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CRD5490-Z2 DS988RD1Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one

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CRD5490-Z20 DS988RD1AC Offset CalibrationsFor AC offset calibration, the CRD5490-Z software clears the offset register before calibration begins. The

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CRD5490-ZDS988RD1 218.Confirm the load has been removed or turned off, and then click Yes from the CONFIRM LOAD window shown inFigure 23.9. The offset

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CRD5490-Z22 DS988RD110. To confirm results, click the Quick Measurements tab to bring it forward, and click the START button.Results should show a red

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CRD5490-ZDS988RD1 233.3.6 Register Write/Read TabThe Register Write/Read tab allows access to the CS5490 registers directly. See Figure 26.There are t

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CRD5490-Z24 DS988RD14. REVISION HISTORYRevision Date ChangesRD1 APR 2012 Initial Release.

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CRD5490-ZDS988RD1 25APPENDIX 1: CRD5490 GUI REMOVALFollow the steps below to remove the CS5490 GUI software:1. From the Start menu, click Control Pane

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CRD5490-Z26 DS988RD1APPENDIX 2: CDC DRIVER INSTALLATIONThis Appendix includes the procedures for installing the CDC driver for both Windows 7 and Wind

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CRD5490-ZDS988RD1 275. Click the Properties button6. Click the General tab to bring it forward, and click the Change Settings button.Figure 30. CDC R

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CRD5490-Z28 DS988RD17. Click the Update Driver button.The Update Driver Software CDC RS-232 Emulation Demo panel is displayed.8. Click Browse my compu

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CRD5490-ZDS988RD1 2910. Follow the installation instructions. If warnings are displayed, select to continue anyway.11. Right-click the device. A pop-u

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CRD5490-ZDS988RD1 31. CHARACTERISTICS AND SPECIFICATIONS1.1 Recommended Operating Conditions1.2 Electrical CharacteristicsParameter Symbol Min Typ Ma

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CRD5490-Z30 DS988RD112. Click Properties. The Communications Port (COM3) Properties window is displayed.The next time this device is used, it will be

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CRD5490-ZDS988RD1 312. Locate the driver information file provided with the software installation and browse to the driver file:\ inf \ win2K_winxp \

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CRD5490-Z32 DS988RD15. When the installation is complete, click the Finish button.The next time this device is used on the computer, it will be recogn

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CRD5490-ZDS988RD1 33APPENDIX 3: NON-FULL SCALE GAIN CALIBRATIONWhen resources are limited, it may be necessary to provide non-full-scale amplitudes an

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CRD5490-Z34 DS988RD1Current Scale RegisterTo perform calibration with less than full scale load without using the above procedure, it is possible to s

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CRD5490-ZDS988RD1 354. SCHEMATIC

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CRD5490-Z36 DS988RD15. BILL OF MATERIALSBOM#: 505-00554-Z1 Rev: A2 BOM Desc: PWA CRD5490-Z-NPb Date Generated: 03/21/2012Line I

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CRD5490-ZDS988RD1 37BOM#: 505-00554-Z1 Rev: A2 BOM Desc: PWA CRD5490-Z-NPb Date Generated: 03/21/2012Line ItemPart AssCirrus PN

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CRD5490-Z38 DS988RD16. LAYOUTFigure 43. Top Routing

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CRD5490-ZDS988RD1 39Figure 44. Bottom Routing

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CRD5490-Z4 DS988RD12. HARDWARE OVERVIEWThe CRD5490-Z includes sensors (line voltage and current shunt), a power supply, a CS5490 power monitor calcula

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CRD5490-Z40 DS988RD1Figure 45. Silkscreen

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CRD5490-ZDS988RD1 52.1 Line Voltage SensorThe high-voltage AC line is attenuated using a voltage divider sensor comprised of five 1206 resistors befor

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CRD5490-Z6 DS988RD12.3 Power SupplyThe CRD5490-Z contains two separate power supply domains: isolated +5V USB supply and +3.3V non-isolatedCS5490 powe

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CRD5490-ZDS988RD1 73. SOFTWARE OVERVIEWThe evaluation board comes with software and a USB cable to link the evaluation board to the PC. The evaluation

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CRD5490-Z8 DS988RD1The application will verify system requirements. The Application Install - Security Warning window is displayed.12. Click the Insta

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CRD5490-ZDS988RD1 93.2 Using the SoftwareBefore launching the software, ensure that all of the cables connected to the CRD5490-Z are installed (as des

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