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Air Conditioner (Mid-Range)
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Overview
The increasing use of air conditioning in both industrial and smaller domestic usage is driving the demand for reduced power consumption and smaller compressors units. And, the need to maintain a comfortable indoor temperature, means that fine-grained control based on multiple sensor inputs is required.
To help designers realize these functions Renesas provides an extensive line up of microcontrollers designed specifically for use in indoor and outdoor air conditioning units and for use in remote controls. The SH7125 Group, the V850E/Ix3 and RX62T are low pin count microcontrollers supporting vector control functions suitable for inverter control in outdoor units, the 78K0R/Kx3-L and the M16C/63 Group are designed for indoor units, and the 179K Series and the 38D2 Group of LCD MCUs are for use in remote controls. Renesas delivers solutions optimized to customer requirements.
System Block Diagram (Indoor Unit/Remote Controller)
System Block Diagram (Outdoor Unit)
Recommended Products
| Block | Semiconductor Device | Recommended Product Name | Features, etc. |
|---|---|---|---|
| Remote controller | MCU | 38D2 Group | LCD driver, low power consumption |
| 4559 Group, 455A Group | LCD driver, low power consumption, small package | ||
| µPD17932x | 8-bit MCU for use in remote control | ||
| Indoor unit | MCU | 3803H Group, 3803L Group | Timers, 5 V operation |
| 78K0R/Kx3-L, 78K0R/Kx3 | General Purpose 16-bit MCU | ||
| 78K0R/Ix3 | 20 MHz, 64 KB Flash, six-phase 16-bit PWM *3 | ||
| M16C/63 Group, M16C/64A Group, M16C/65 Group | Timers, 5 V operation, 16-bit CPU | ||
| R8C Family | Timers, 5 V operation, small package | ||
| EEPROM | R1EX24xxx Series | I2C bus interface *1 | |
| R1EX25xxx Series | SPI bus interface *2 | ||
| Outdoor unit | MCU | SH7125 Group | Three-phase PWM timer, 5V operation, enhanced A/D |
| RX62T Group | 100 MHz, 64-pin, Three-phase PWM timer, 5 V operation, enhanced A/D *3 | ||
| V850E/Ix3 | 64 MHz、256 KB Flash、six-phase 16-bit PWM *3 | ||
| Shunt regulator | HA17431 Series | Optimal for output voltage detection of outdoor unit power supply | |
| µPC1093, µPC1943/1944 | |||
| PFC (IGBT) | RJP60D0DPM | Optimal for partial switching systems, low VCE (sat), insulated package. | |
| EEPROM | R1EX24xxx Series | I2C bus interface *1 | |
| R1EX25xxx Series | SPI bus interface *2 | ||
| General use Surge absorption Circuit protection | Zener diode | HZMxNB Series | 3-terminal (1 device included) face-mount outline High ESD tolerance optimal for use in surge absorption |
| NNCDxxDA Series | High ESD tolerance optimal for use in surge absorption | ||
| RDxxS Series | 2-terminal face-mount outline | ||
| RKZxxKG Series | 2-terminal face-mount outline High ESD tolerance optimal for use in surge absorption | ||
| Switching diode | HSM2838C, HSM123 | 3-terminal (2 devices included) face-mount outline | |
| HSU119, HSC119 | 2-terminal face-mount outline | ||
| Schottky barrier diode | HRB0502A | 3-terminal face-mount outline (low VF) | |
| HRC0103C | 2-terminal face-mount outline (low leak current) Low IR optimal for use in circuit protection | ||
| HRV103B, RKR104BKH | 2-terminal face-mount small outline (Io = 1A) Low IR optimal for use in circuit protection | ||
| Discrete (inverter) | IGBT | RJH60D Series | Built-in FRD |
| MOSFET | RJL60 Series | Parasitic Di high-speed trr type | |
| Photocoupler (IGBT Drive) | PS9306(6p-SDIP) PS9506(8p-DIP) | High isolation voltage (5 kV r.m.s.), 0.6 A output High CMR (CMR = 25 kV) | |
| MCU peripheral | Sensor signal amplification CMOS op-amp | HA1630xxx Series | Low power consumption |
| Sensor signal amplification op-amp | µPC358 | ||
| Reset IC | RNA519xx Series | Variable detection voltage | |
| Signal interface in indoor/outdoor unit | Photocoupler (standard) | PS25xx Series PS27xx Series PS28xx Series | High isolation voltage (5 kV r.m.s.), 4p-DIP High isolation voltage (3.75 kV r.m.s.), 4p-SOP High isolation voltage (2.5 kV r.m.s.), 4p-SSOP |
| TRIAC Control | Photocoupler (standard) | PS25xx Series PS27xx Series PS28xx Series | High isolation voltage (5 kV r.m.s.), 4p-DIP High isolation voltage (3.75 kV r.m.s.), 4p-SOP High isolation voltage (2.5 kV r.m.s.), 4p-SSOP |
| Interface in PSC circuit | Photocoupler (IGBT drive) | PS9306 (6p-SDIP) PS9506 (8p-DIP) | High isolation voltage (5 kV r.m.s.), 0.6 A output High CMR (CMR = 25 kV) |
*1 I2C: Inter-Integrated Circuit
*2 SPI: Serial Peripheral Interface
*3 PWM: Pulse Width Modulation
Related Application Notes/Sample Code
| Name | Document No. |
|---|---|
| Power MOS FET application note | REJ05G0001-0200 |
| SH7080/SH7146/SH7125/SH7200 Series application note three-phase complementary PWM output |
REJ06B0474-0100 |
| V850E/Ix3 port functions setting example | U18241EJ |
| V850E/Ix3 interrupt functions setting example | U18736EJ |
| V850E/Ix3 A/D converters 0 and 1 functions setting example |
U18737EJ |
| V850E/Ix3 A/D converter 2 functions setting example | U13738EJ |
| V850E/Ix3 serial comminucation (CSIB) functions setting example | U18725EJ |
| V850E/Ix3 serial comminucation (I2C) functions setting example | U18726EJ |
| V850E/Ix3 serial comminucation (UARTA) functions setting example | U18723EJ |
| V850E/Ix3 serial comminucation (UARTB) functions setting example | U18724EJ |
| V850E/Ix3 DMA functions setting example | U18727EJ |
| V850E/Ix3 clock generator functions setting example | U18734EJ |
| V850E/Ix3 standby functions setting example | U18735EJ |
| V850E/Ix3 watchdog timer sample program functions | U18729EJ |
| V850E/Ix3 low-voltage detector (LVI) function setting example | U18739EJ |
| V850E/Ix3 timer M functions setting example | U18728EJ |
| V850E/Ix3 timer AA functions setting example | U18730EJ |
| V850E/Ix3 timer AB functions setting example | U18731EJ |
| V850E/Ix3 timer T functions setting example | U18732EJ |
| V850E/Ix3 6-phase PWM output control by timer AB, timer Q option, timer AA, A/D converters 0 and 1 | U18717EJ |
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