Samsung S3F84B8 User Manual Download

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S3F84B8

All-in-One IH Cooker

Revision 0.00

May 2010

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2010 Samsung Electronics Co., Ltd. All rights reserved.

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Summary of Contents for S3F84B8

Page 1: ...S3F84B8 All in One IH Cooker Revision 0 00 May 2010 A Ap pp pl li ic ca at ti io on n N No ot te e 2010 Samsung Electronics Co Ltd All rights reserved...

Page 2: ...perts Samsung products are not designed intended or authorized for use as components in systems intended for surgical implant into the body for other applications intended to support or sustain life o...

Page 3: ...Revision History Revision No Effective Date Description Refer to Author s 0 00 Mar 2010 Initial Draft Wei Ningning Zhang Fan...

Page 4: ...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...

Page 5: ...Figure 2 4 Waveform of the Synchronization Circuit 2 8 Figure 2 5 Voltage Measurement and Surge Protection Circuit 2 9 Figure 2 6 Current Measurement Circuit 2 10 Figure 2 7 Over Temperature Protecti...

Page 6: ...List of Tables Table Title Page Number Number Table 2 1 S3F84B8 pin assignment in IH cooker system 2 5 Table 3 1 Internal Resource Arrangement and Configuration 3 4 Table 4 1 Error Information 4 1...

Page 7: ...Faraday s Law changing the magnetic field associated with an alternating current AC induces current in a second conductor placed in that field IH cookers work largely the same way 1 1 1 HOW INDUCTION...

Page 8: ...ESET P0 2 BUZ INT2 P0 3 PWM INT3 P0 4 INT4 P0 5 TAOUT INT5 P0 6 TACK CMP0_P P1 0 TACAP CMP0_N P1 1 Figure 1 2 Pin Assignment in S3F84B8 The key features of S3F84B8 include 8K Full Flash ROM and 272B S...

Page 9: ...directly controls the switch of IGBT and the width of valid output level determines the output power Therefore the power is dependent on the system clock 1 3 2 PROTECTION Two kinds of protection are a...

Page 10: ...E IH COOKER_AN_REV 0 00 2 HARDWARE IMPLEMENTATION 2 4 2 HARDWARE IMPLEMENTATION 2 1 SYSTEM DIAGRAM AND PIN ASSIGNMENT Figure 2 1 shows the block diagram of IH cooker system Figure 2 1 Block Diagram of...

Page 11: ...in Names Pin Type Pin Assignment 1 VSS I Ground 20 VDD I Power input 4 P0 2 Reserved 2 P0 0 O DIO 3 P0 1 O CLK 7 P0 5 O Display Board Connector STB 8 P0 6 O Reserved 13 P2 1 O Reserved 5 P0 3 BUZ O Bu...

Page 12: ...uF 25V C2 4 7uF 450V C1 102 1KV R1 100K 0 5W C21 100uF 25V C13 100uF 16V AC_L 5V D2 UF4007 AC_N D6 1N4007 C3 104 D7 1N4007 D4 UF4007 L1 330uH 18V Figure 2 2 Power Supply Circuit The power circuit cont...

Page 13: ...25V 100uF D8 4148 R36 10R R37 10K C22 0 1uF 275V SYS_I Q1 8050 R25 24K Sy n_P Q5 8550 Q4 8050 L2 CHOKE IGBT FGA15N120 L3 IGBT_V_P IGBT Driver C20 0 24uF 1200V Q2 8050 R21 2K IGBT over voltage protect...

Page 14: ...uld be synchronized with the LC oscillation It is realized by comparator0 Second considering the withstand voltage of IGBT it is better to turn it on when the collector voltage is near 0 It can be rea...

Page 15: ...current separately 2 4 1 VOLTAGE MEASUREMENT Figure 2 5 shows the circuit diagram for voltage measurement and surge protection R20 29K C16 10uF 50V SYS_V R27 6K8 C18 221 Surge_P 220 VAC AC_L D9 1N400...

Page 16: ...Finally the amplified signal enters the ADC module Note that the signal OPA_N reaching OPA is negative as compared to MCU GND Therefore OPA has to work as an inverting amplifier with negative gain Ei...

Page 17: ...r the moment when the pan is removed from the panel Figure 2 5 shows the voltage measurement circuit In this figure IGBT_V_P specifies the negative input of Comparator 2 Also reference voltage interna...

Page 18: ...For IGBT temperature protection there are two kinds of scenarios When the temperature rises above 85 the set level of output power will automatically downgrade When the temperature continues to rise...

Page 19: ...tem is working It is useful when you directly remove the pan from the panel without pressing the Stop key Pan remove detection is done by current measurement that is when the sensed current is small t...

Page 20: ...1 R8 constant C26 PF 1 2 C27 PF GND 2 1 R29 constant 2 1 R32 constant 0 5V KEY1 KEY2 SEG1 KS1 5V NC 1 DIO 2 CLK 3 STB 4 KEY1 5 KEY2 6 VDD0 7 SEG1 KS1 8 SEG2 KS2 9 SEG3 KS3 10 SEG4 KS4 11 SEG5 KS5 12 S...

Page 21: ...panel and all temperatures and voltage are in good condition The IH cooker will stop heating immediately in case of the following issues Manually power off by key pressing Error flag set as temperatu...

Page 22: ...iod Basic procedures include key process error detection power control and UI update These procedures are executed as an infinite loop Most of the processes are controlled by timing In other words pro...

Page 23: ...ue immediately for the current PWM cycle And the PWMDATA will be reloaded as PWMPDATA usually a smaller one from the next cycle on Fan On Power flag 0 IGBT temp 55 Fan Off Start Y Y N N Start Error la...

Page 24: ...ontrol Co operate with CMP0 Delay Trigger AMT Trigger PWMCON PWMCCON PWMDATAH L PWMPDATAH L P0CONH BUZ BUZ control 1KHz output BUZCON P0CONL TA 100ms timing for 1 BUZ beaming time 0 2sec for every ena...

Page 25: ...rror code on 7seg LED IGBT temperature sensor error E1 Pan temperature sensor error E2 Over voltage error E3 Under voltage error E4 IGBT over temperature error E5 Pan over temperature error E6 4 2 SCH...

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