Renesas has a broad lineup of microcontroller products suitable for microwave ovens. These include RL78/L1x Series of LCD MCUs, which are built around a high-performance CPU and integrate a PWM (Pulse Width Modulation) function for IGBT control and A/D converters to handle a variety of sensor inputs, and RX130 Group, which incorporates a touch detection circuit.

Microwave Oven (High-End)

System Block Diagram

Recommended Products
Block Semiconductor Device Recommended Product Name Features, etc.
System control MCU RL78/G13 Group General purpose 16-bit MCU
RL78/L13 Group On-chip LCD Display control function, 16-bit MCU
Touch key control MCU RX130 Group 32-bit microcontroller with Cpacitive Touch Sensor Unit
Power device TRIAC BCR1AM-12A
Compartment lamp
Gllil Heater
Power supply IC for power supply μPC1093, μPC1943/1944 Shunt regulator
PFC power supply PFC IC R2A20114B Continuous conduction mode interleaving
R2A20112A Critical conduction mode interleaving
Sensor output amplification, detection Op-amp READ2302GSP Full range Input/output , High slew rate
μPC4742, μPC4744 High slew rate
IGBT gate driver Photocoupler
(IGBT drive)
PS93xx Series
PS94xx Series
PS95xx Series
PS99xx Series
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
Related Software
Related Boards
Name Part No.
R2A20112A evaluation board * -
R2A20114B evaluation board * -

*:Please contact your sales representative or contact us directly.