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The following page content corresponds to the products formerly marketed by NEC Electronics

Applications > System Applications > Digital Home Electronics > Consumer Electronics and Entertainment >

Inverter-controlled air conditioners


Today's inverter air conditioners must be more power-efficient and have systems with better control. They also
require highly accurate sensor input and high-speed processing performance to achieve maintenance-free and other fine control.

Our microcontrollers for inverter control are suitable for meeting such needs.

Inverter-controlled air conditioners


Functional block diagram of Inverter-controlled air conditioners

Functional block diagram of Inverter-controlled air conditioners

Recommended device

Microcontroller for outdoor unit control


Product Name/Alias Features
V850E/IF3,
V850E/IG3 		32-bit All Flash microcontroller: two-channel 3-phase motor control timer, 64 MHz operation, 80 or 100 pins
V850ES/IE2 32-bit All Flash microcontroller: one-channel 3-phase motor control timer, 20 MHz operation, 64 pins
V850ES/IK1 32-bit microcontroller: one-channel 3-phase motor control timer,32 MHz operation, 64 pins


Microcontroller for indoor unit and remote control


Product Name/Alias Features
78K0R/Ix3 16-bit All Flash microcontroller: one-channel 3-phase motor control timer, 20 MHz operation, 30 to 64 pins
78K0R/Kx3 16-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a reset circuit and on-chip oscillator; high-performance CPU core, 64 to 144 pins
78K0/Kx2 8-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a reset circuit and on-chip oscillator; 20 MHz operation, low power consumption, 30 to 80 pins
78K0/Lx3 8-bit All Flash microcontroller: wealth of on-chip peripheral functions such as a segment LCD, reset circuit, and oscillator; low power consumption, 48 to 80 pins


Microcontroller for remote control


Product Name/Alias Features
µPD17932x 8-bit microcontroller: on-chip LCD and power-on clear (POC) circuit,52 pins


Power supply IC


Product Name/Alias Features
µPC29xxHF 1A 3-pin regulator, low VDIF, TO-220 insulated-type package


Photocoupler for driving fan motors


Product Name/Alias Features
PS8xxx/PS9xxx High-speed IC output of 1 Mbps/10 Mbps; SO5, SO8, SDIP packages


Photocoupler for feedback circuit of power supply


Product Name/Alias Features
PS25xx/PS27xx/PS28xx Transistor output


MOSFET


Product Name/Alias Features
P-ch+N-ch
complementary MOSFETs 		P-ch + N-ch single-package product suitable for fan motor H-bridge driving, 30, 40, or 60V withstanding voltage; 8-pin SOP package