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Washing Machine (High-End)

Washing Machine (High-End)

Overview

Modern high performance washing machines now have to be eco-friendly electric household appliances, providing modern technology advances that cleans clothes, whilst using less water, less power and are quieter in their operation. Higher specification products also have ion cleaning functions to eliminate odors and the trend towards multifunctional use is set to continue.

A modern washing machine requires a motor that can deliver high torque during the agitation portion of the wash cycle, high-speed rotation during the spin cycle, and a high degree of durability. As some models function not only as washers but as dryers as well, they must also incorporate inverter control technology for the drying function.

Renesas has a wide-ranging lineup of MCUs that enable our customers to develop products that satisfy these requirements. The products in the RX24T Group and the RX63T Group are ideal for use as motor control MCUs, and those in the RX130 Group (for capacitive touch) and the RL78/G13 Group are designed for system control. These MCUs meet a variety of requirements for washing machine control, including wide-range motor torque, rotation rate control, and load variation.

System Block Diagram (Operation Unit)

System Block Diagram (Control Unit)

Recommended Products

Block Semiconductor Device Recommended Product Name Features, etc.
Operation block Operation MCU
Touch key MCU
RX130 Group Touch key MCU
RL78/L1x Series
RL78/L13 Group
5 V operation, abundant lineup
Reset IC RNA519xx Series New Variable detection voltage
EEPROM
(data correction)
R1EX24xxx Series I 2 C bus interface *1
R1EX25xxx Series SPI bus interface *2
Control block Control MCU RX24T Group Built-in FPU, 2 motor control
RX63T Group Built-in FPU, 3 motor control
Sensor output Op-amp HA1630xxx Series General use CMOS op-amp, Low power
consumption
READ2302GSP Full range output, Low power consumption
μPC358, μUPC324 Low power consumption
comparator HA1631 Series General use CMOS op-amp, low power consumption
μPC393 Low power consumption
Valves TRIAC BCR1AM-12A , BCR08AM-14A Up to 60 W/AC 100 V to 120 V
Main motor TRIAC BCR8PM-12LG
BCR10PM-12LG
BCR8PM-14LG
Guaranteed maximum junction temperature of 150℃
Lid lock MOSFET H5N2510DS  
TRIAC BCR1AM-12A Up to 60 W/AC 100 V to 120 V
Inverter IGBT RJL60xx Series , RJH60DxSeries Parasitic Di high-speed trr type
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)
Power supply PFC IC R2A20112A Critical conduction mode interleaving
R2A20131 Continuous conduction mode single
MOSFET RJK60xx Series 500 V, 600 V tolerance
I/F for control MCU 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
Photocoupler
(high-speed)
PS91xx Series
(SOP)
PS93xx Series
(SDIP)
PS98xx Series
(Small SOP)
PS99xx Series
(LSDIP)
Digital output   
~15Mbps
Low supply current
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
*3 PWM: Pulse Width Modulation

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

 

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