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ADP3336 Datasheet(PDF) 5 Page - Analog Devices |
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ADP3336 Datasheet(HTML) 5 Page - Analog Devices |
5 / 13 page ADA4571R-EBZ User Guide UG-739 HOW TO USE THE SOFTWARE STARTING UP THE EVALUATION GUI For maximum performance when the evaluation board is first powered up, control both the motor and the board using an external bench power supply. The jumper settings for P9 and P10 should be set for Ext Motor and Ext +5V as indicated on the board. Plug the positive supply for the board into the red terminal, P7, on the motherboard. This terminal requires 6 V to 12 V which is then regulated to 5 V on the motherboard using the on-board ADP3336. This supply powers both the on-board ADC, AD7866, as well as the daughter board containing the ADA4571. Plug the positive supply for the motor into the blue terminal, P6, on the motherboard. Due 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 terminal. If the motor supplied is a brushless dc motor; 3 V results in rotational speeds of approximately 2,000 RPM. Speeds up to 10,000 RPM are possible with a supply voltage of 12 V applied to this terminal. If the motor supplied is a brushed dc motor, 3 V results in rotational speeds of approximately 200 RPM. 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. Rev. 0 | Page 5 of 13 |
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