Freescale Semiconductor 33395 Manuale utente

ANALOG ICs

33395 EVALUATION

MOTOR BOARD

DESIGNER REFERENCE

MANUAL

MC33395RM

Rev. 2

05/2003

Communicate

Control

Protect

Power

EMBEDDED MOTION CONTROL

DRM33395 Designer Reference Manual 33395EvaluationMotorBoard

33395 Evaluation Motor Board DRM33395 Designer Reference Manual

List of Sections 1

33395 Evaluation Motor Board

List of Sections

Section 1. Introduction and Setup .................................... 9

Section 2. Operational Description ................................. 15

Section 3. Pin Descriptions..............................................17

Section 4. Schematics and Parts List ............................. 25

Section 5. Design Considerations .................................. 37

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board

2 List of Sections

List of Sections

33395 Evaluation Motor Board DRM33395 Designer Reference Manual

Table of Contents 3

33395 Evaluation Motor Board

Table of Contents

Section 1. Introduction and Setup

1.1 Contents .....................................................................................9

1.2 SMOS EVM Motor Board Introduction........................................9

1.3 About This Manual......................................................................9

1.4 Warnings ..................................................................................12

1.5 Setup Guide..............................................................................13

Section 2. Operational Description

2.1 Contents ...................................................................................15

2.2 Introduction...............................................................................15

2.3 Electrical Characteristics ..........................................................16

Section 3. Pin Descriptions

3.1 Contents ...................................................................................17

3.2 Introduction ...............................................................................17

3.3 Signal Descriptions...................................................................19

3.3.1 Power Connectors J3 and JP4............................................19

3.3.2 40-Pin Ribbon Connector J1 ...............................................19

3.3.3 Output Connectors: J2, J4, FASTONS (J5, J7, J8)............. 22

3.3.4 Jumpers and Switch/Push Button: M0, M1, PWM, SW1.....22

3.3.5 Test Points ..........................................................................24

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board

4 Table of Contents

Table of Contents

Section 4. Schematics and Parts List

4.1 Contents ...................................................................................25

4.2 Overview...................................................................................25

4.3 Schematics ...............................................................................25

4.4 Parts List...................................................................................32

Section 5. Design Considerations

5.1 Contents ...................................................................................37

5.2 Overview...................................................................................37

5.3 3-Phase H-Bridge .....................................................................37

5.4 Bus Voltage and Current Feedback Signals.............................38

5.5 Back-EMF Signals ....................................................................40

5.6 Brake Control............................................................................41

33395 Evaluation Motor Board DRM33395 Designer Reference Manual

List of Figures 5

33395 Evaluation Motor Board

List of Figures

Figure Title Page

1-1 System Configurations..............................................................10

1-2 SMOS EVM Motor Board ver. 140A01 .....................................11

1-3 SMOS EVM Motor Board Setup ...............................................14

3-1 40-Pin Input Connector J1 ........................................................18

4-1 SMOS EVM Motor Board ver. 140A01 Overview ....................26

4-1a SMOS EVM Motor Board ver. 140A02 Overview ....................27

4-2 3-Phase H-Bridge with Gate Driver ..........................................28

4-3 Current Feedback Circuits ........................................................29

4-4 Back-EMF Signals .................................................................... 30

4-5 Brake Control............................................................................31

4-6 Brushless DC Motor Connections - Schematic View................31

5-1 Phase Current and DC Bus Voltage Sensing ...........................39

5-2 Reconstructed Bus Current ......................................................40

5-3 Phase C Back-EMF Feedback .................................................40

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board

6 List of Figures

List of Figures

33395 Evaluation Motor Board DRM33395 Designer Reference Manual

List of Tables 7

33395 Evaluation Motor Board

List of Tables

Table Title Page

2-1 Electrical Characteristics ..........................................................16

3-1 Connector J1 Signal Descriptions ............................................19

3-2 Connectors J2 and J4 Signal Descriptions...............................22

3-3 Driver Jumper Groups for Operating Mode ..............................22

3-4 Gate Driver PWM Signal Selection ...........................................23

3-5 Test Points ...............................................................................24

4-1 Parts List...................................................................................32

DRM33395 Designer Reference Manual 33395 Evaluation Motor Board

8 List of Tables

List of Tables

Indice

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