Samsung S3F84B8 manual

S3F84B8 All-in-One IH Cooker Revision 0.00 May 2010 A A p p p p l l i i c c a a t t i i o o n n N N o o t t e e  2010 Samsung Electr onics Co., Ltd. Al l rights reserv ed.[...]

Import ant Notice The information in this publication has b een carefully checked and is believed to be entirely a ccurate at the time of publication. Samsung assumes no responsibility, however, for possible errors or omissions, or for any consequences resulting from the use of the information contained h erei n. Samsung reserves the right to make [...]

Revision History Revision No. Effective Date Description Refer to Author(s) 0.00 Mar, 2010 - Initial Draft Wei Ningning Zhang Fan[...]

T able of Content s 1 OVERVIEW OF IH COOKER (IHC) ............................................................. 1-1 1.1 Induction Cook ing Principle ................................................................................................ ..................... 1-1 1.1.1 How Induction Cooki ng Works ...........................................[...]

List of Figures Figure Title Page Number Number Figure 1-1 How IH Cooker Work s ............................................................................................... ....................... 1-1 Figure 1-2 Pin Assi gnment in S3F84B8 ......................................................................................... ..................[...]

List of T ables Table Title Page Number Number Table 2-1 S3F84B8 pin assi gnment in IH c ooker system ......................................................................... ......... 2-5 Table 3-1 Internal Resource Arrangement and Configuration .................................................................... ....... 3-4 Table 4-1 Erro r Info[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0. 00 1 OVERVIEW OF IH COOKER (IHC) 1-1 1 OVER VIEW OF IH COOKER (IHC) In traditional ranges or ovens, cookware is use d to tran sfer heat from the stove elements. However, in the IH cooker (IHC), the cookware participate s in the heat generat ion. This form of heat generation is known as Induction Heating, and i[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0. 00 1 OVERVIEW OF IH COOKER (IHC) 1-2 1.2 KEY FEATURES OF S3F84B8 With no more discrete ICs like LM339 (comparator IC) in previous IHC soluti ons, S3F84B8 successfully integrate s four comparators, one OPA, and one IH-PWM to cont rol power directly. After conf iguration, all the four comparators can cooperate w[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0. 00 1 OVERVIEW OF IH COOKER (IHC) 1-3 Comparator1/2/3 has only one input with an intern al prog ra mmable reference level. It can lock the output of PWM to a safe level. Besides the delay trigger function, PWM can realize anti-mis-trigg er functio n as well. It prevents the PWM from being triggered by un expect[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-4 2 HARDW ARE IMPLEMENT A TION 2.1 SYSTEM DIAGRAM AND PIN ASSIGNMENT Figure 2-1 shows the block diagram of IH co oker system. Figure 2-1 Block Diagram of IH Cooker Sy stem[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-5 In Figure 2-1 , SMPS stands for Switch Mode Power Supply. It pr ovides +18V DC and +5V DC to the syste m. Three out of four comparators are u se d in this sol uti on: one for synchronization ci rcuit an d other two for surge protection and IGBT over-voltage protection. Table 2-1[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-6 2.2 POWER SUPPLY Figure 2-2 shows the circuit diagram for power supply . 1 5 6 4 8 T1 EE-19 D5 U F 4007 D4 8 D3 7 D2 6 D1 5 S1 1 S2 2 FB 3 VDD 4 U1 VIPER 12A 220 V A C D1 1N 4007 + C8 10uF / 50V VI N 1 GN D 2 VOU T 3 IC1 78L05 D 7 U F 4007 Z1 18V + C6 100uF / 25V + C2 4.7uF / 45[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-7 2.3 SYNCHRONIZATION CIRCUIT R9 2KJ R23 2 K C23 1 02 +18V R12 2K7 R6 220K/0. 5W FU SE1 10A/250V 1 4 3 2 -+ BR I D GE D15X B80H18 R28 51R + C28 25V/100uF D8 4148 R36 10R R37 10K C22 0.1uF / 275V SY S_I Q1 8050 R25 24K Sy n_P Q5 8550 Q4 8050 L2 CHO K E IG BT FGA15N 120 L3 IG BT _V [...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-8 IH heating is the result of Eddy current caused by LC resonance. Fo r a general cookware, the oscillation frequency may vary from 20KHz to 30KHz. Since he ati ng consumes en ergy, the IGBT should be periodically turned on to allow the 220V power to compen sate for the energy los[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-9 2.4 POWER CONTROL Power is the product of voltage and current (P = V x I). Figure 2-5 a nd Figu re 2-6 show the measurement circuit of system voltage and current, separately. 2.4.1 VOLTAGE MEASUREMENT Figure 2-5 shows the circuit diagram for volt age mea surement and surge prote[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-10 2.4.2 CURRENT MEASUREMENT R4 1 K OPA_O R1 3 3 6 K RW1 10K OPA_N C1 0 104J SY S_I + C1 2 1uF / 16V CURRE NT R 14 100K R1 5 22K S 3 F84 B8 R f R 1 OP A _ N OP A _ P OP A _ O Gain = - R f / R1 Figure 2-6 Current Measurement Circuit In the IH cooker system, the current can go as hi[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-11 2.5 SYSTEM PROTECTION 2.5.1 SURGE PROTECTION Figure 2-5 shows the circuit diagram for surge p rotection. In this figure, Surge_P specifies the negative inp u t of Comparator 1. Also, reference voltage is internally set as 0.55VDD. When surge take s place, that is, V Surge_P >[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-12 2.5.4 TEMPERATURE PROTECTION Figure 2-7 shows the circuit diagram for temperature protection. C4 104 R5 10K RT 1 100K3950 IG B T _T +5V PAN _T a) Pan temper atur e pr ot ec t ion b) IGB T temper atur e pr ot ec t ion C2 5 104 R29 3K 1 2 CN5 T _PAN +5V Figure 2-7 Over-Temperatur[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-13 2.6 OTHER FUNCTIONS 2.6.1 PAN DETECTION Pan-on detection is executed every 2sec when the system is idle. It is useful whe n you press the Start key first and then put the pan on. In principle, even though the I GBT is turned on, there wi ll not be any oscillation before the pan[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00 2 HARDWARE IMPLEMENTATION 2-14 2.6.3 KEY AND DISPLAY CIRCUIT Figure 2-9 shows the circuit diagram for key and di splay. SEG8/ KS8 SEG4/ KS4 SEG5/ KS5 GR I D 4 GR I D 3 SEG1/ KS1 SEG2/ KS2 SEG3/ KS3 GR I D 7 GR I D 6 GR I D 5 5V GN D GR I D 4 SEG8/ KS8 K4 KEY K2 KEY K3 KEY K1 KEY K5 KEY K6 KEY K7 KEY K8 KEY K[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_R EV 0.00 3 SOFTWARE IMPLEMENTATION 3-1 3 SOFTW ARE IMPLEMENT A TION 3.1 STATE TRANSITION DIAGRAM Figure 3-1 shows the state transition diagram. This diagram illustrates the operation of IH cooker sy stem. Figure 3-1 State Transition Diagram After power is turned on manually, the system periodically ch ecks for pan s[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_R EV 0.00 3 SOFTWARE IMPLEMENTATION 3-2 3.2 SOFTWARE DIAGRAM Figure 3-2 shows the software diagram. Figure 3-2 Software Diagram NOTE: 1. [1] Pan remove detection [1] is done by current sensing. T he pan is judged to be removed when the current is lower than a preset threshold. 2. [2] Pan on detection [2] is done by p[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_R EV 0.00 3 SOFTWARE IMPLEMENTATION 3-3 Figure 3-3 shows the flow chart of CMP 1/2 interrupt serv ice routine. Due to the cooperation of IH-PWM and comparators integrated in S3F84B8, only a few jobs need to be done in the ISR. Start Clr pending bit Set P0.4(PWM) to input wi thout pull-up R PWMCON = 0 End Not mandator[...]

S3F84B8_ALL-IN-ONE IH COOKER_AN_R EV 0.00 3 SOFTWARE IMPLEMENTATION 3-4 3.3 INTERNAL RESOURCE ARRA NGEMENT AND CONFIGURATION Table 3-1 shows the internal resource arrangeme nt and configuration. Table 3-1 Internal Resource Ar rangement and Configuration Module Purpose Configuration Registers CMP0 Synchronization Non-inverting output Disable INT CMP[...]

S3F84B8_ALL-IN-ONE IH COOKER_ AN_REV 0.00 4 APPENDIX 4-1 4 APPENDIX 4.1 ERROR CODE Table 4-1 shows the error information al ong with the error type and its code on 7seg-LED. Table 4-1 Error Information Error Type Error code on 7seg-LED IGBT temperature sensor error E1 Pan temperature sensor error E2 Over voltage error E3 Under voltage error E4 IGBT[...]