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AS5403D-HTST датащи(PDF) 23 Page - ams AG |
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AS5403D-HTST датащи(HTML) 23 Page - ams AG |
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23 / 66 page ![]() ams Datasheet Page 23 [v1-06] 2015-Aug-28 Document Feedback AS5403A/D/E − Output Drivers PWM Output When the PWM mode is selected the measured position is proportional to the duty cycle. A range of 10% to 90% of the PWM period is used to carry the information and the remaining ranges are used as a fail signal (a 5% PWM means Algorithm Error, no change over a whole period means a Hard Error). The 80% of the PWM period contains the position information. Depending on the AS5403 version (A/D/E) and mode selection the PWM frequency can change between 1.0 kHz and 0.125 kHz. The PWM resolution can also change between 10 bit (1024 positions) for 1.0 kHz and 12 bit (4096 positions) for 0.125 kHz. The behavior of PWM and /PWM is shown in the following figures. Figure 24: PWM Output 0 5 10 50 90 100 DC (%) 1023 / 4095 511/ 2047 0 Algorithm Error Hard Error 95 PWM Behavior |
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