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 pr18V DC and +5V DC to the system.
Three out of four comparators are used in this solution: one for synchronization circuit and other two for surge
protection and IGBT over-voltage protection.
Table 2-1
shows the pin assignment while using S3F84B8 in IH cooker system.
Table 2-1 S3F84B8 pin assignment in IH cooker system
Pin No.
Pin 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
Buzzer and Fan control
6 P0.4/PWM O
IGBT
control
9 P1.0/CMP0_P I
10 P1.1/CMP0_N I
Synchronization control
11
P1.2/CMP1_N
I
IGBT over-voltage protection
16 P2.4/CMP2_N I
Surge
protection
17
P2.5/ADC5
I
System voltage measurement input
12
P2.0/ADC0
I
IGBT temperature sensor input
19
P2.7/ADC7
I
Pan temperature sensor input
18
P2.6/ADC6
I
Amplified current signal input
14
P2.2/OPA_N
I
System current measurement input
15
P2.3/OPA_O
O
Operational Amplifier output
