Samsung S3F84B8 Manuel d'utilisateur télécharger pdf (Page 12)

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

4 8

EE-19

UF4007

VDD

VIPER12A

220 VAC

1N4007

10uF/50V

VIN

GND

VOUT

IC1

78L05

D7 UF4007

18V

100uF/25V

4.7uF/450V

102/1KV

100K/0.5W

C21

100uF/25V

C13

100uF/16V

AC_L

+5V

UF4007

AC_N

1N4007

104

1N4007

D4 UF4007

330uH

+18V

Figure 2-2 Power Supply Circuit

The power circuit contains a transformer, an SMPS primary switcher, and a +5V DC regulator. After passing

through a half-wave rectifier and an LC filter, the 220V AC power enters the primary side of transformer.

Thereafter, VIPER12 and 78L05 produce stable +18V DC power for the transistors and +5V DC power for the

MCU and other devices.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 24 25

S3F84B8 1
Important Notice 2
Revision History 3
Table of Contents 4
List of Figures 5
List of Tables 6
OVERVIEW OF IH COOKER (IHC) 7
1.2 KEY FEATURES OF S3F84B8 8
1.3 SYSTEM PRINCIPLE 9
2 HARDWARE IMPLEMENTATION 10
2.2 POWER SUPPLY 12
2.3 SYNCHRONIZATION CIRCUIT 13
2.4 POWER CONTROL 15
2-10 16
2.5 SYSTEM PROTECTION 17
2-12 18
2.6 OTHER FUNCTIONS 19
2-14 20
3 SOFTWARE IMPLEMENTATION 21
3.2 SOFTWARE DIAGRAM 22
4 APPENDIX 25

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