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UG-739 

ADA4571R-EBZ User Guide 

 

OVERVIEW OF THE MAIN GUI WINDOW 

Figure 6 shows the main GUI window, as it appears, after 
launching the GUI.  
When the program is first launched the SDP controller board 
must be recognized by the GUI before proceeding. Pressing 

Connect SDP

 reads the EEPROM ID of the motherboard to 

ensure the correct program is being used. If the SDP controller 
board is not connected or if the drivers are not installed 
correctly an error message will be shown. Ensure that the 
drivers are installed correctly if this occurs.  
After the SDP control board is properly connected and the 
program recognizes the motherboard, the 

Instructions

 tab 

appears. Click the 

Read

 tab to begin. 

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 waveforms as 
indicated by the GUI. The waveforms on the top of each tab, 
indicated as 

Uncorrected Plots,

 are without any post processing 

to correct for output offset before calculations are done on the 
raw data. In the case of the bottom waveforms, indicated as 

Offset Corrected Plots

, the offset of each channel is subtracted 

from the raw data before completing any further calculations. 
These differences are discussed in further detail for each 
waveform in the Raw Waveforms section.  

 

 

Figure 6. 

ADA4571

 Main Window 

 

Rev. 0 | Page 6 of 13 

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Содержание ADA4571

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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Страница 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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