Table of Contents
1
OVERVIEW OF IH COOKER (IHC) .............................................................1-1
1.1 Induction Cooking Principle ..................................................................................................................... 1-1
1.1.1 How Induction Cooking Works ......................................................................................................... 1-1
1.2 Key Features of S3F84B8........................................................................................................................ 1-2
1.3 System Principle ...................................................................................................................................... 1-3
1.3.1 Heating ............................................................................................................................................. 1-3
1.3.2 Protection.......................................................................................................................................... 1-3
2
HARDWARE IMPLEMENTATION...............................................................2-4
2.1 System Diagram and pin Assignment...................................................................................................... 2-4
2.2 Power Supply ........................................................................................................................................... 2-6
2.3 Synchronization Circuit ............................................................................................................................ 2-7
2.4 Power control ........................................................................................................................................... 2-9
2.4.1 Voltage Measurement ...................................................................................................................... 2-9
2.4.2 Current Measurement..................................................................................................................... 2-10
2.5 System Protection .................................................................................................................................. 2-11
2.5.1 Surge Protection ............................................................................................................................. 2-11
2.5.2 IGBT over Voltage Protection......................................................................................................... 2-11
2.5.3 Over/under Voltage Protection ....................................................................................................... 2-11
2.5.4 Temperature Protection .................................................................................................................. 2-12
2.6 Other Functions...................................................................................................................................... 2-13
2.6.1 Pan Detection ................................................................................................................................. 2-13
2.6.2 Buzzer and Fan Control.................................................................................................................. 2-13
2.6.3 Key and Display Circuit .................................................................................................................. 2-14
3
SOFTWARE IMPLEMENTATION ...............................................................3-1
3.1 State Transition Diagram ......................................................................................................................... 3-1
3.2 Software Diagram .................................................................................................................................... 3-2
3.3 Internal Resource Arrangement and Configuration ................................................................................. 3-4
4
APPENDIX ...................................................................................................4-1
4.1 Error Code................................................................................................................................................ 4-1
4.2 Schmatic .................................................................................................................................................. 4-1
4.3 Source Code ............................................................................................................................................ 4-1
