ST STEVAL-WBC86TX Manuals

Manuals and User Guides for ST STEVAL-WBC86TX. We have 1 ST STEVAL-WBC86TX manual available for free PDF download: User Manual

ST STEVAL-WBC86TX User Manual (78 pages)

Wireless power transmitter evaluation board for up to 5 W Qi-BPP applications

Brand: ST | Category: Motherboard | Size: 7 MB

Figure 1. STEVAL-WBC86TX Board
1
Reference Design Specifications
3
Table 1. STEVAL-WBC86TX Target Specifications
3
Overview of the Board
4
Figure 2. STEVAL-WBC86TX Evaluation Board Features
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Test Points
5
Figure 3. Connectors and Test Points
5
Basic Operating Modes
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Table 2. Connectors and Test Points
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Graphical User Interface (GUI)
7
Connecting STWBC86 to PC GUI
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Figure 4. GUI Connection
7
Patch and Configuration Files
8
Figure 5. GUI Device Connection
8
Configuration File Generation
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Figure 6. Generation of Configuration File
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Figure 7. Version of the Configuration File
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Header File
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Figure 8. Saving of the Configuration File
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Header File Generation
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Figure 9. Header Generator - Chip Selection
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Figure 10. Header Generation - Pop up Window
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Figure 11. Header Generation - Save Header File
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Programming the Device
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Figure 12. Programming the Device by Header File
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Figure 13. Generating the Header File by Patch and Configuration Files
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Device Description and Operation
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System Block Diagram
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Integrated Power Inverter
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Figure 14. System Block Diagram
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Adc
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Figure 15. H-Bridge Mode Settings
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Figure 16. GUI Charts Monitoring
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Ldos
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Power-Up Sequence
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Uvlo
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Chip Reset
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Protections Overview
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Overcurrent Protection (OCP)
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Overvoltage Protection (OVP)
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Figure 17. OCP Settings
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Figure 18. OVP Settings
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Overtemperature Protection (OVTP)
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Ntc
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Figure 19. OVTP Settings
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Figure 20. NTC Connection on Board
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Figure 21. NTC Settings
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Foreign Object Detection (FOD)
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FOD Tuning
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Figure 22. Disable FO Detection
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Figure 23. Add a New Dataset
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Figure 24. Display Dataset in Plot
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Figure 25. Enable Auto Scroll
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Figure 26. Additional Dataset Options
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Figure 27. Line Properties - Dashed/Solid
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Figure 28. Line Properties - Color
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Figure 29. Logged Data
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Figure 30. Delete a Single Data Point
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Figure 31. Spot Wrong Data Point in Plot
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Figure 32. Plot Logged Data
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Figure 33. Ploss Threshold
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Figure 34. CTC Threshold
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Figure 35. Unsutiable Parameter Values Highlighted in Red
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Figure 36. Load Tuned Parameters
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Figure 37. Enable FOD and Set FOD Debounce
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EPT Reason
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Figure 38. EPT Reason
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Figure 39. Received Message
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Figure 40. EPT Interrupt Setting
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WPC Qi Wireless Power Transfer
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Figure 41. Protection Debounce Setting
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Figure 42. EPT Reping Settings
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Wireless Power Interface
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Bidirectional Communication
33
Figure 43. Power Transfer Start up Sequence
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ASK Communication
35
Figure 44. Amplitude Modulation of the Power Signal
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Figure 45. Example of a Differential Bi-Phase Encoding Scheme
36
Figure 46. Example of the Asynchronous Serial Format
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Figure 47. ASK Communication Example - High Load Current
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FSK Communication
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Figure 48. ASK Communication - no Load
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Figure 49. Example of Differential Bi-Phase Encoding
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Most Common Qi Communication Packets
38
Figure 50. Format of the Three Defined Responses
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I2C Interface
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Data Validity
39
Start and Stop Conditions
39
Byte Format
39
Interface Protocol
39
Writing to a Single Register
39
Writing to Multiple Registers with Incremental Addressing
40
Reading from a Single Register
40
Figure 51. Writing to a Single Register
40
Figure 52. Writing to Multiple Registers
40
Figure 53. Reading from a Single Register
40
Reading from Multiple Registers with Incremental Addressing
41
Gpiox and INTB Pins
41
Interrupt Registers
41
Table 3. GPIO Functions
41
Figure 54. Reading from Multiple Registers
41
Frequency Hopping (Fhop)
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Figure 55. Interrupt Registers
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Figure 56. FHOP Settings
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Figure 57. FHOP Example
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PID Tuning
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Figure 58. PID Parameters
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STEVAL-WBC86TX Description and Operation
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STWBC86 Default Configuration
45
Table 4. Basic Parameters
45
Typical Performance Characteristics
46
Power-Up Waveforms
46
Table 5. Charging Performance
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Table 6. Signal Legend for Power up Waveform
46
Figure 59. Power up Waveform
46
Efficiency and Spatial Freedom in the XY Plane
47
Figure 60. X, y Axis for Misalignment
47
Efficiency and Spatial Freedom in the Z-Axis
48
Figure 61. Efficiency Curve in X Axis
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Figure 62. Efficiency Curve in y Axis
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Thermal Performance
49
Figure 63. Efficiency Curve in Z Axis
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Figure 64. Thermal Performance
49
Designing a 5 W Wireless Power Transmitter Based on the STEVAL-WBC86TX
50
Evaluation Board
50
External Component Design
50
Coil Selection
50
Series Resonant Capacitor Selection
50
Vin and Vinv Capacitors Selection
50
Hardware Input Protections
50
Ring Node Voltage Sensing
51
PCB Layout Guidelines
51
Figure 65. Ring Node Voltage Sensing
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Figure 66. Ring Node Divider Configuration
51
Reference Code with STM32 Development Boards
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Hardware Requirements
52
Hardware Connections
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Table 7. Pin Connection between Host (STM32) and STWBC86
52
Figure 67. Pin Connection between Host and STWBC86 Chip/Evaluation Board
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Software Requirements
53
Source Files
53
Reference Code Porting Procedure
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Figure 68. Connectivity
53
Api
54
Error Codes
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Table 8. Error Codes with Descriptions
54
Schematic Diagrams
55
Figure 69. STEVAL-WBC86TX Circuit Schematic (1 of 4)
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Figure 70. STEVAL-WBC86TX Circuit Schematic (2 of 4)
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Figure 71. STEVAL-WBC86TX Circuit Schematic (3 of 4)
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Figure 72. STEVAL-WBC86TX Circuit Schematic (4 of 4)
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Bill of Materials
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Table 9. STEVAL-WBC86TX Bill of Materials
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STEVAL-WBC86TX PCB Layout
62
Figure 73. Top Layer
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Figure 74. Inner1 Layer
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Figure 75. Inner2 Layer
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Figure 76. Bottom Layer
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Board Versions
66
Table 10. STEVAL-WBC86TX Versions
66
Regulatory Compliance Information
67
Appendix A Thermal Measurements
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Figure 77. Temperature before Power Transfer Maximum 25⁰C on STEVAL-WBC86TX
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Figure 78. Maximum Temperature of the Board after 2Hours (40.8⁰C) - 5W Power Transfer STEVAL-WLC38RX
69
Figure 79. Maximum Temperature of the Board and Plastic Case after 2Hours (33.5⁰C) - 5W Power Transfer
70
Revision History
71
Table 11. Document Revision History
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Table of Contents
72
List of Tables
75
List of Figures
76

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