Air Conditioners

Air conditioners were the first major home appliance to use inverter control. Key semiconductor devices used for inverter control of a compressor motor include microcontrollers, insulated gate bipolar transistors (IGBTs) and photocouplers. Microcontrollers provide overall system control, pulse-width-modulation (PWM) generation and system protection functions. IGBTs and photocouplers reside in the inverter driver circuit and its interface, respectively. These days, more and more air conditioners feature a self-cleaning capability and a vector-controlled compressor motor for energy saving. Power factor correction (PFC) ICs or IGBTs are used in the power supply circuit to keep harmonics in the input current below the IEC limit.

Block Diagram

The block diagram of Air Conditioners

Product Introduction

Microcontrollers
  • MCUs for main control
  • MCUs for motor control
  • MCUs for remote control
General-Purpose Linear ICs
  • Indoor Fan Motor
    • Motor Controllers / Drivers
    • IPDs
  • Outdoor Fan Motor
    • Motor Controllers / Drivers
    • IPDs
  • Indoor Louver Motor
    • Motor Controllers / Drivers
  • Indoor Filter Cleaner Motor 1, 2
    • Motor Controllers / Drivers
  • Outdoor PFC Control
    • PFC (IC)
Optical Semiconductor Devices
  • Outdoor IGBT / MOSFET Driver
    • Photocouplers
  • Two- / four-way valve
    • Photocouplers
Transistors
  • Compressor driver
    • IGBT
  • Outdoor PFC Circuit
    • IGBTs
  • Outdoor Fan motor
Diodes
  • General-Purpose Surge Absorption and Circuit Protection
    • Zener Diodes
    • ESD Protection Diodes
    • Switching Diodes
    • Schottky Barrier Diodes
Sensors
  • Louver open/close detection
    • Digital-output Magnetic sensors

* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.

New products

New products of Air Conditioners on one year in the past.

2.3mm thin SO6L package gate driver coupler: TLP5701, TLP5702

The package photograph of 2.3mm thin SO6L package gate driver coupler:  TLP5701, TLP5702.

We have commercialized thin SO6L package gate driver couplers TLP5701 and TLP5702, capable of driving small capacity IGBT and power MOSFET directly. The output power of TLP5701 is 0.6A, and that of TLP5702 is 2.5A. (27 Mar, 2014)
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Low Input Current-Type Transistor Couplers: TLP182, TLP183, TLP292, TLP293

The package photograph of low input current-type transistor couplers: TLP182, TLP183, TLP292, TLP293.

The TLP182 and TLP183 are low input current-type transistor output photocoupler utilizing the SO6 package. We are also releasing the TLP292 and TLP293, which utilize the smaller SO4 package. (19 Jul, 2013)
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Contacts

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