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USB-2-RTMI датащи(PDF) 2 Page - TRINAMIC Motion Control GmbH & Co. KG.

номер детали USB-2-RTMI
подробное описание детали  Encoder Engine: Hall analog/digital, Encoder analog/digital
PDF  157 Pages
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производитель  TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.]
домашняя страница  http://www.trinamic.com
Logo TRINAMIC - TRINAMIC Motion Control GmbH & Co. KG.

USB-2-RTMI датащи(HTML) 2 Page - TRINAMIC Motion Control GmbH & Co. KG.

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TMC4671 Datasheet • IC Version V1.00 | Document Revision V1.04 • 2018-Dec-11
2 / 157
Contents
1 Order Codes
5
2 Functional Summary
6
3 FOC Basics
8
3.1
Why FOC?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
3.2
What is FOC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
3.3
Why FOC as pure Hardware Solution? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
3.4
How does FOC work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
3.5
What is Required for FOC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
3.5.1
Coordinate Transformations - Clarke, Park, iClarke, iPark
. . . . . . . . . . . . . . . . .
10
3.5.2
Measurement of Stator Coil Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
3.5.3
Stator Coil Currents I_U, I_V, I_W and Association to Terminal Voltages U_U, U_V, U_W
10
3.5.4
Measurement of Rotor Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
3.5.5
Measured Rotor Angle vs. Magnetic Axis of Rotor vs. Magnetic Axis of Stator
. . . . .
11
3.5.6
Knowledge of Relevant Motor Parameters and Position Sensor (Encoder) Parameters
12
3.5.7
Proportional Integral (PI) Controllers for Closed Loop Current Control . . . . . . . . . .
12
3.5.8
Pulse Width Modulation (PWM) and Space Vector Pulse Width Modulation (SVPWM) .
12
3.5.9
Orientations, Models of Motors, and Coordinate Transformations . . . . . . . . . . . .
13
4 Functional Description
14
4.1
Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
4.2
Communication Interfaces
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
4.2.1
SPI Slave User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
4.2.2
TRINAMIC Real-Time Monitoring Interface (SPI Master) . . . . . . . . . . . . . . . . . . .
17
4.2.3
UART Interface
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
4.2.4
Step/Direction Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
4.2.5
Single Pin Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
4.3
Numerical Representation, Electrical Angle, Mechanical Angle, and Pole Pairs
. . . . . . . . .
20
4.3.1
Numerical Representation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
4.3.2
N_POLE_PAIRS, PHI_E, PHI_M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
4.3.3
Numerical Representation of Angles PHI . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
4.4
ADC Engine
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
4.4.1
ADC Group A and ADC Group B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
4.4.2
Internal Delta Sigma ADCs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
4.4.3
External Delta Sigma ADCs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
4.5
Delta Sigma Con guration and Timing Con guration . . . . . . . . . . . . . . . . . . . . . . . .
24
4.5.1
Internal Delta Sigma Modulators - Mapping of V_RAW to ADC_RAW
. . . . . . . . . . .
27
4.5.2
External Delta Sigma Modulator Interface
. . . . . . . . . . . . . . . . . . . . . . . . . .
29
4.5.3
ADC Con guration - MDAC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
4.6
Analog Signal Conditioning
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
4.6.1
FOC3 - Stator Coil Currents I_U, I_V, I_W and Association to Terminal Voltages U_U,
U_V, U_W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
4.6.2
Stator Coil Currents I_X, I_Y and Association to Terminal Voltages U_X, U_Y . . . . . . .
33
4.6.3
ADC Selector & ADC Scaler w/ Offset Correction . . . . . . . . . . . . . . . . . . . . . . .
33
4.7
Encoder Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
4.7.1
Open-Loop Encoder
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
4.7.2
Incremental ABN Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
4.7.3
Secondary Incremental ABN Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37
4.7.4
Digital Hall Sensor Interface with optional Interim Position Interpolation . . . . . . . .
37
4.7.5
Digital Hall Sensor - Interim Position Interpolation
. . . . . . . . . . . . . . . . . . . . .
38
4.7.6
Digital Hall Sensors - Masking and Filtering . . . . . . . . . . . . . . . . . . . . . . . . . .
38
©2018 TRINAMIC Motion Control GmbH & Co. KG, Hamburg, Germany
Terms of delivery and rights to technical change reserved.
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