Analog Devices ADA4571 User Manual
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Analog Devices ADA4571 User Manual

Analog Devices ADA4571 User Manual

End of shaft evaluation board
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One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

FEATURES

USB 2.0 interface
Jumper for temperature compensation mode enable
Jumper for power down mode enable
Measurement test points and coaxial connectors

EVALUATION KIT CONTENTS

ADA4571
magnetic stimulus:
Dipole magnet
Brushed or brushless dc motor with integrated control
electronics
Evaluation software CD-ROM (Windows® 7 32-bit and 64-bit
compatible GUI)

ADDITIONAL EQUIPMENT NEEDED

Customer supplied 6 V to 12 V bench supply
SDP interface board
USB cable (supplied with SDP interface board)
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Arrow.com.
Downloaded from
ADA4571
End of Shaft Evaluation Board

EVALUATION BOARD CONNECTION DIAGRAM

PC GUI INTERFACE
USB
Figure 1.
ADA4571
End of Shaft Evaluation System
Rev. 0 | Page 1 of 13
ADA4571R-EBZ User Guide

GENERAL DESCRIPTION

The end of shaft evaluation system is composed of a Windows
LabVIEW® GUI software, an
magnetic stimulus mounted on top of a brushless dc motor, a
daughter board with
ADA4571
interface and controller board, the SDP-S.
The motherboard features an on-board 5 V regulator, a
2-channel simultaneous sampling ADC and jumpers for
enabling the temperature compensation and power-down
modes within the ADA4571. The motherboard also features
test points and unpopulated coaxial connectors for the three
outputs of the device.
The daughter board features the
magnetic stimulus as well as test points for the three outputs of
the device.
The SDP board is used to control the ADC on the motherboard
and interface with the GUI.
6V TO 12V
SUPPLY
POWER
SUPPLY
EVALUATION
SDP CONTROL
SYSTEM
CARD
WITH MAGNETIC
STIMULUS
UG-739
ADA4571
motherboard, a
in its SOIC package, and a USB
ADA4571
mounted above the

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Summary of Contents for Analog Devices ADA4571

  • Page 1: Features

    Dipole magnet enabling the temperature compensation and power-down Brushed or brushless dc motor with integrated control modes within the ADA4571. The motherboard also features electronics test points and unpopulated coaxial connectors for the three Evaluation software CD-ROM (Windows® 7 32-bit and 64-bit outputs of the device.

  • Page 2: Table Of Contents

    UG-739 ADA4571R-EBZ User Guide TABLE OF CONTENTS Features ....................1 Evaluation Board Hardware .............4 Evaluation Kit Contents ..............1 Jumper Configuration ..............4 Additional Equipment Needed ............1 DUT Outputs .................4 General Description ................. 1 How to Use the Software ..............5 Evaluation Board Connection Diagram ........

  • Page 3: Getting Started

    GETTING STARTED SOFTWARE INSTALLATION PROCEDURES SDP Installation Next, install the Analog Devices, Inc., SDP driver. This driver There are two pieces of software to install: the Windows GUI allows the SDP control board to interface with the LabVIEW and the SDP drivers.

  • Page 4: Evaluation Board Hardware

    ADA4571. See the Angular Error (Linearity) section for more information on motor performance. Rev. 0 | Page 4 of 13 Arrow.com.

  • Page 5: How To Use The Software

    ADA4571. The nonidealities of the motor result in a higher reported nonlinearity of the device. This is an artifact of the motor and not the ADA4571. With an ideal magnetic stimulus, the ADA4571 has the same angular error performance regardless of rotational velocity.

  • Page 6: Overview Of The Main Gui Window

    After the SDP control board is properly connected and the waveform in the Raw Waveforms section. program recognizes the motherboard, the Instructions tab appears. Click the Read tab to begin. Figure 6. ADA4571 Main Window Rev. 0 | Page 6 of 13 Arrow.com. Arrow.com.
  • Page 7 The electrical angle period will repeat for every sinusoidal revolutions are averaged independently for both the sine and period of the sine and cosine outputs from the ADA4571. Just cosine channels giving the offset for the channel. These offset like the raw waveform data, three mechanical revolutions or six values are then subtracted from their respective channel to give electrical revolutions are used for calculations.
  • Page 8 Due to the nonidealities of the brushless dc motor providing the magnetic stimulus, the reported angular error will always be higher than the actual error of the ADA4571. The motor provides a more constant rate of speed at lower rotational velocities and therefore the reported linearity will be lower at slower speeds.
  • Page 9 The exact radius of this plot is shown depicts the electrical frequency. This will be two times inversely proportional to the temperature of the ADA4571. At the mechanical frequency. An example calculation for motor lower device temperatures, the radius increases while at higher speed in RPM from a 100 Hz fundamental electrical frequency device temperatures the radius decreases;...
  • Page 10 UG-739 ADA4571R-EBZ User Guide Figure 13. ADA4571 Part Diagnostics Tab Rev. 0 | Page 10 of 13 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 11 ADA4571R-EBZ User Guide UG-739 Figure 14. ADA4571 Board Configuration Tab Rev. 0 | Page 11 of 13 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...

  • Page 12: Evaluation Board Schematics And Artwork

    UG-739 ADA4571R-EBZ User Guide EVALUATION BOARD SCHEMATIC Figure 15. ADA4571 Evaluation Motherboard Schematic Rev. 0 | Page 12 of 13 Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from...

  • Page 13: Related Links

    By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.

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