IH Rice Cooker (Low-End)
详情介绍
Overview
Low-end IH rice cookers are a popular category of electric home appliance designed to efficiently heat the cooking vessel to cook and produce tasty rice. In recent years there has been strong demand among both luxury and affordable products for eco-friendly models that boost efficiency through low power consumption. This requires fine-grained control.
The RL78/L13 Group and R8C/Lx Series MCUs from Renesas have an IH control timer (timer KB2 or timer RC) function with PWM suitable for IH control. They are designed to enable IH control using a simpler circuit configuration. IGBTs are used for IH drive, and TRIACs are used for body heater drive, cover heater drive, and fan motor drive.
System Block Diagram
Recommended Products
| Block | Semiconductor Device | Recommended Product Name | Features, etc. |
|---|---|---|---|
| Control MCU | MCU | RL78/L13 Group | 16-bit MCU, LCD Control, IH Control |
| R8C/LxC,LxM,LAxx Group | 16-bit MCU, LCD Control, IH Control | ||
| EEPROM | R1EX24xxx Series | I 2 C bus interface *1 | |
| R1EX25xxx Series | SPI bus interface *2 | ||
| Audio playback MCU |
MCU | RL78 Family , R8C Family | 16-bit MCU |
| MCU peripheral | Reset IC | RNA519xx Series | Variable detection voltage |
| CMOS op-amp | HA1630xxx Series | Small package, low power consumption | |
| Op-amp | μPC324 | ||
| Heater control | TRIAC | BCR08AM-12A | Up to 80 W/AC 200 V to 220 V |
| BCR1AM-12A | Up to 60 W/AC 100 V to 120 V | ||
| BCR1AM-12A | Up to 120 W/AC 200 V to 220 V | ||
| BCR2PM-12RE | Up to 120 W/AC 100 V to 120 V | ||
| IH | IGBT | RJH1BF6RDPK | TO-3P outline / 1100 V |
| Sensor | CMOS Op-amp | HA1630xxx Series | Small package, low power consumption |
| Op-amp | μPC324 | ||
| IGBT Gate Driver | Photocoupler (IGBT Drive) |
PS93xx Series (6/8p-SDIP) PS94xx Series (16p-SOP) PS95xx Series (8p-DIP) PS99xx Series (8p-LSDIP) |
High isolation voltage (5kV～7.5kVr.m.s.) 0.6～2.5A output High CMR (CMR≧50kV/μs) |
| TRIAC Control | Photocoupler (Standard) | PS23xx Series PS27xx Series PS28xx Series |
High isolation voltage (5kVr.m.s.), 4p-LSOP, Ta=115°C High isolation voltage (3.75kVr.m.s.), 4p-SOP, Ta=110°C High isolation voltage (2.5kVr.m.s.), 4p-SSOP, Ta=110°C |
*1 I 2 C: Inter-Integrated Circuit
*2 SPI: Serial Peripheral Interface
Related Application Notes/Sample Code
| Name | Document No. |
|---|---|
| LCD drive control circuit (external dividing resistor usage) |
REJ05B0996-0100 |
| Power MOS FET application note | REJ05G0001-0200 |
| R8C/38C Group Timer RC (PWM2 Mode) | R01AN0081EJ0100 |
Related Software
| Name | Document No. |
|---|---|
| M3S-S2-Tiny sound playback system * | - |
*: Please contact your sales representative or contact us directly.