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ADA4571R-EBZ User Guide 

UG-739 

 

 

Figure 14. 

ADA4571

 

Board Configuration 

Tab 

 
 
 

Rev. 0 | Page 11 of 13 

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Summary of Contents for ADA4571

Page 1: ...tic stimulus mounted on top of a brushless dc motor a daughter board with ADA4571 in its SOIC package and a USB interface and controller board the SDP S The motherboard features an on board 5 V regula...

Page 2: ...2 Getting Started 3 Software Installation Procedures 3 Evaluation Board Hardware 4 Jumper Configuration 4 DUT Outputs 4 How to Use the Software 5 Starting Up the Evaluation GUI 5 Overview of the Main...

Page 3: ...w Installation 4 Click Next to complete installation of the Windows LabVIEW GUI SDP Installation Next install the Analog Devices Inc SDP driver This driver allows the SDP control board to interface wi...

Page 4: ...he ADA4571 is proportional to the voltage applied at this terminal The attached motor provides a more constant rotational speed at lower applied voltages Due to the LabVIEW GUI measuring the linearity...

Page 5: ...to mechanical nonlinearities of the dc motor such as cogging during coil commuting extra errors are introduced to the system at higher rotational velocities For best performance apply 3 V to Ext Motor...

Page 6: ...n Initially all of the figures will be blank To begin press Run see Figure 6 The various output graphs are explained in detail in the following sections There are two different categories of output wa...

Page 7: ...han the inherent offset of the ADA4571 Arc Tangent2 Magnetic Angle The second set of figures are labeled ArcTangent Magnetic Angle see Figure 8 These figures depict the calculated electrical angle of...

Page 8: ...ndle motor rotational speeds as high as 50 000 RPM Figure 9 shows the Uncorrected Angular Error Degrees plot When powered by the host PC USB supply this waveform reports higher error than when powered...

Page 9: ...is constant throughout the entire rotation of the magnetic stimulus The exact radius of this plot is inversely proportional to the temperature of the ADA4571 At lower device temperatures the radius in...

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Page 13: ...of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse...

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