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1
ST STM32F103ZE manual available for free PDF download: User Manual
ST STM32F103ZE User Manual (62 pages)
1.4 kW Digital power factor corrector
Brand:
ST
| Category:
Microcontrollers
| Size: 2 MB
Table of Contents
Table of Contents
2
1 Safety and Operating Instructions
6
General
6
Intended Use of the Demonstration Board
6
Installation of the Demonstration Board
6
Electronic Connection
7
Demonstration Board Operation
7
2 PFC Basics and Operating Principles
8
Introduction
8
Figure 1. Typical AC to DC Rectification Without PFC
8
PFC with Digital Approach
9
Figure 2. Scheme of AC to DC Boost Converter Topology
9
Figure 3. AC to DC Boost Converter Signals with CCM PFC - Output VDC, Input Vac and Inductor Current (Time Scale = 5 Ms)
9
Figure 4. AC to DC Boost Converter Signals with CCM PFC - Inductor Current and Power MOSFET Gate Command (Time Scale = 10 Μs)
9
Figure 5. Digital PFC Implementation Scheme
10
Figure 6. Block Diagram of the Voltage and Current PI Regulator
10
3 STEVAL-ISF002V1 Hardware Description
11
Electrical Characteristics
11
Target Applications
11
Dimensioning the Power Components
12
Preliminary Definition
12
Rectifier
12
Input Capacitor
12
Figure 7. STEVAL-ISF002V1
12
Boost Inductor for CCM
13
Output Capacitor
13
Power MOSFET
14
Boost Diode
15
Connectors
16
Vin Connector
16
Vout Connector
16
15 V Connector
16
MC + PFC Connector
16
Figure 8. Vin Connector
16
Figure 9. Vout Connector
16
MC Connector Only
17
Figure 10. MC + PFC Connector
17
Figure 11. MC Connector Only
17
STEVAL-ISF002V1 Block Diagram
18
Figure 12. STEVAL-ISF001V1 Block Diagram
18
Figure 13. STEVAL-ISF002V1 - Power Supply Section
19
Power Supply
19
Figure 14. STEVAL-ISF002V1 - Input Voltage Sensing Section
20
Figure 15. STEVAL-IHM022V1 - Input Voltage Sensing Section
20
Signal Conditioning for Input Voltage
20
Figure 16. STEVAL-ISF002V1 - Output Voltage Sensing Section
21
Figure 17. STEVAL-IHM022V1 - Output Voltage Sensing Section
21
Signal Conditioning for Output Voltage
21
Figure 18. STEVAL-ISF002V1 - PFC Current Sensing Section
22
Figure 19. STEVAL-IHM022V1 - PFC Current Sensing Section
22
Signal Conditioning for PFC Current
22
Driving the PFC Power MOSFET
24
Figure 20. STEVAL-ISF002V1 - PFC Power MOSFET Driving Section
24
Figure 21. STEVAL-ISF002V1 - Overcurrent Protection Section
25
Overcurrent Protection
25
Figure 22. STEVAL-ISF002V1 - Vin Zero Crossing Detection Section
26
Zero Crossing Detection of Input Voltage
26
Figure 23. Vin Zero Crossing Detection (Without Load)
27
Figure 24. Vin Zero Crossing Detection (with Load)
27
Current and Voltage Protections
28
STEVAL-IHM022V1 Demonstration Board
29
Figure 25. STEVAL-IHM022V1
29
Digital PFC Firmware
30
Firmware Architecture
30
Figure 26. Output Voltage Soft-Start Methodology
31
STM32 Peripherals for Digital PFC
32
Table 1. Peripherals and Pins of the STM32F103ZE Used for the Digital PFC
32
Figure 27. PFC States
32
Main Files for Digital PFC
33
Figure 28. Use of Peripherals for Digital PFC
33
Table 2. Used Interrupts and Their Priority
33
Pfc.C File
34
Pfc.h
35
Digital PFC Firmware Execution
38
Figure 29. PFC Firmware Flowchart
38
Figure 30. Digital PFC Timing
39
Starting the PFC Application
40
Hardware Requirements
40
Software Requirements
40
Jumper Settings
40
Table 3. PFC Power Board STEVAL-ISF002V1 Jumper Settings
40
Downloading the Firmware
41
Table 4. Control Demonstration Board STEVAL-IHM022V1 Jumper Settings
41
Figure 31. Hardware Connections for Firmware Downloading
41
Figure 32. Opening the Workspace File
42
Figure 33. Downloading and Debugging the Firmware
42
Getting Started with the System
43
Figure 34. Connecting the Various System Components
43
Running the Demonstrator
44
Navigating in the System Menu
44
Table 5. LED Description for Digital PFC
44
Figure 35. Hardware Elements of the Control Board
44
Digital PFC at Work
45
Table 6. Default Values of PI Regulators
45
Figure 36. LCD after Startup
45
Figure 37. LCD During Running of the Digital PFC
45
Figure 38. LCD after an Overcurrent
46
Performance of the Digital PFC
47
Steady State
47
Figure 39. Test Setup Block Diagram
47
Figure 40. 185 Vrms at 50 Hz as Input - 1400 W as Output Load
47
Efficiency Measurement
48
Table 7. Efficiency with 185 Vrms at 50 Hz
48
Figure 41. 230 Vrms at 50 Hz as Input - 1400 W as Output Load
48
Figure 42. 265 Vrms at 50 Hz as Input - 1400 W as Output Load
48
Table 8. Efficiency with 230 Vrms at 50 Hz
49
Table 9. Efficiency with 265 Vrms at 50 Hz
49
Appendix A Schematic and Bill of Materials
50
Figure 43. STEVAL-ISF00V1 Schematic
50
Layout
51
Figure 44. STEVAL-ISF002V1 Layout
51
Table 10. STEVAL-ISF00V1 BOM
52
Customized Inductor by MAGNETICA
59
Figure 45. Technical Sheet of PFC Inductor - Page 1 of 2
59
Figure 46. Technical Sheet of PFC Inductor - Page 2 of 2
60
Revision History
61
Table 11. Document Revision History
61
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