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Table of Contents
1 OVERVIEW OF IH COOKER (IHC) .............................................................1-1
1.1 Induction Cooking Principle
..................................................................................................................... 1-1
1.1.1 How Induction Cooki
ng Works ......................................................................................................... 1-1
1.2 Key Features of S3F84B8........................................................................................................................ 1-2
1.3 System Princ
iple ...................................................................................................................................... 1-3
1.3.1 Heating
............................................................................................................................................. 1-3
1.3.2 Protec
tion.......................................................................................................................................... 1-3
2 HARDWARE IMPLEMENTATION...............................................................2-4
2.1 System Diagram and pi
n Assignment...................................................................................................... 2-4
2.2 Power Supply
........................................................................................................................................... 2-6
2.3 Synchronization Circ
uit ............................................................................................................................ 2-7
2.4 Power c
ontrol ........................................................................................................................................... 2-9
2.4.1 Voltage Meas
urement ...................................................................................................................... 2-9
2.4.2 Current Measurement
..................................................................................................................... 2-10
2.5 System Protec
tion.................................................................................................................................. 2-11
2.5.1 Surge P
rotection............................................................................................................................. 2-11
2.5.2 IGBT over Voltage Protection
......................................................................................................... 2-11
2.5.3 Over/under Voltage Protec
tion ....................................................................................................... 2-11
2.5.4 Temperature Protec
tion.................................................................................................................. 2-12
2.6 Other Func
tions...................................................................................................................................... 2-13
2.6.1 Pan Det
ection ................................................................................................................................. 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