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USB-2-RTMI датащи(PDF) 39 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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USB-2-RTMI датащи(HTML) 39 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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39 / 157 page ![]() TMC4671 Datasheet • IC Version V1.00 | Document Revision V1.04 • 2018-Dec-11 39 / 157 4.7.8 Analog Hall and Analog Encoder Interface (SinCos of 0° 90° or 0° 120° 240°) An analog encoder interface is part of the decoder engine. It is able to handle analog position signals of 0° and 90° and of 0° 120° 240°. The analog decoder engine adds offsets and scales the raw analog encoder signals, while also calculating the electrical angle PHI_E from these analog position signals by an ATAN2 algorithm. SIN/COS Hall Track SIN Track COS 3-phase Analog Hall Track 0° Track 120° Track 240° SIN/COS with 10 PPR Track SIN Track COS Figure 20: Analog Encoder (AENC) signal waveforms An individual signed offset is added to each associated raw ADC channel and scaled by its associated scaling factors according to AENC_VALUE = (AENC_RAW + AENC_OFFSET) · AENC_SCALE (19) In addition, the AENC_OFFSET is for conversion of unsigned ADC values into signed ADC values as required for the FOC. ©2018 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany Terms of delivery and rights to technical change reserved. Download newest version at www.trinamic.com |
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