Air purifiers

Innovative sensors and efficient motor control solutions for improved air circulation and an intuitive user experience

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Overview

Breathing in fresh, clean air has never been more vital for our health — and the next generation of air purifiers lets you take air quality to a whole new level. Today, the best smart air purifiers boast intelligent features like voice control, apps that allow you to monitor particle levels, and the ability to schedule cleanings days in advance.

Benefits

  • Innovative sensors for air quality
  • Quiet motors
  • Improved air circulation
  • Intuitive user experience
  • Ability to schedule cleanings days
  • Monitoring particle levels
  • Efficient motors

Block diagram

About

Details about air purifiers

Air purifiers use a motor drive to operate a fan. This fan pulls in air, pushes it through multiple filter stages and UV-C light, and releases it back into the room. It takes time to filter all the air in a room, which is why these units usually operate continuously, making low energy consumption essential. And since they operate in living spaces, low noise and vibration are also significant. Sensors measure air quality, detect presence and recognize gestures. Connectivity to integrate the air purifier into a smart home remote control can be achieved through Wi-Fi while the user can interact with the device through a modern Human-Machine Interface (HMI).

Product portfolio for air purifiers

Our components and system solutions will bring more intelligence to modern air purifiers, letting them securely sense, control, and connect. CIPOS™ IPMs are the optimal solution for highly integrated fan motor drives, while discrete solutions are the best choice whenever the layout flexibility and thermal performance optimization are the major factors. They can all be combined with iMOTION™ products for dedicated motor control. For the auxiliary power supply, the CoolSET™ rounds up our power portfolio by offering increased robustness and performance. Infineon's Discrete IGBT products are designed for power factor correction and motor control, combined with 32-bit PSoC™ 6 Arm® Cortex®-M4 / M0+ microcontrollers for system control, AIROC™ Wi-Fi + Bluetooth® Combos, and XENSIV™ sensors to enable highly compact, robust, and reliable systems that consume less power and offer a rich user interface.

More about power devices
More about microcontrollers
More about AIROC™
More about sensors
Sensing the air quality

CO2 is a very good proxy for bad and stale air. It´s even a proxy for a high concentration of potential viruses. So, detecting when the air gets bad is important to automatically turn on the air purifier. Our XENSIV™ CO2 sensors not only offer a high precision CO2 reading, they are also easy to integrate into your air purifier.

More about XENSIV™ CO2 sensors
Smart air purifiers know if people are present and where they are

Knowing that someone is in the room can help to save energy by turning the air purifier off once the air is clean enough and nobody is in the room anymore. That can save a lot of energy. This can be done by a small radar sensor which can cover large distances. The same sensor can even provide information about where people are located. This allows the air purifier to turn into the right direction to provide just the right sections of the room with fresh and clean air. 

More about our XENSIV™ radar sensors
Cleaning the air - with UV-C light and negative ions

There are several ways to purify and clean the air. UV-C and negative ionization are two proven ways to do that. 

Infineon provides state-of-the art LED drivers for UV-C LEDs. 

Negative ionization can be implemented in a very efficient way by using Infineon´s SiC MOSFETs.

More about CoolSiC™ MOSFETs
More about our LED drivers
Integration with smart home platform

The next generation of air purifiers will be designed to become part of the smart home system. Matter is one of the new wireless standards to address interoperability between smart home product. Infineon is one of the leading suppliers to offer Matter over Wi-Fi solution.

Details about air purifiers

Air purifiers use a motor drive to operate a fan. This fan pulls in air, pushes it through multiple filter stages and UV-C light, and releases it back into the room. It takes time to filter all the air in a room, which is why these units usually operate continuously, making low energy consumption essential. And since they operate in living spaces, low noise and vibration are also significant. Sensors measure air quality, detect presence and recognize gestures. Connectivity to integrate the air purifier into a smart home remote control can be achieved through Wi-Fi while the user can interact with the device through a modern Human-Machine Interface (HMI).

Product portfolio for air purifiers

Our components and system solutions will bring more intelligence to modern air purifiers, letting them securely sense, control, and connect. CIPOS™ IPMs are the optimal solution for highly integrated fan motor drives, while discrete solutions are the best choice whenever the layout flexibility and thermal performance optimization are the major factors. They can all be combined with iMOTION™ products for dedicated motor control. For the auxiliary power supply, the CoolSET™ rounds up our power portfolio by offering increased robustness and performance. Infineon's Discrete IGBT products are designed for power factor correction and motor control, combined with 32-bit PSoC™ 6 Arm® Cortex®-M4 / M0+ microcontrollers for system control, AIROC™ Wi-Fi + Bluetooth® Combos, and XENSIV™ sensors to enable highly compact, robust, and reliable systems that consume less power and offer a rich user interface.

More about power devices
More about microcontrollers
More about AIROC™
More about sensors

Sensing the air quality

CO2 is a very good proxy for bad and stale air. It´s even a proxy for a high concentration of potential viruses. So, detecting when the air gets bad is important to automatically turn on the air purifier. Our XENSIV™ CO2 sensors not only offer a high precision CO2 reading, they are also easy to integrate into your air purifier.

More about XENSIV™ CO2 sensors

Smart air purifiers know if people are present and where they are

Knowing that someone is in the room can help to save energy by turning the air purifier off once the air is clean enough and nobody is in the room anymore. That can save a lot of energy. This can be done by a small radar sensor which can cover large distances. The same sensor can even provide information about where people are located. This allows the air purifier to turn into the right direction to provide just the right sections of the room with fresh and clean air. 

More about our XENSIV™ radar sensors

Cleaning the air - with UV-C light and negative ions

There are several ways to purify and clean the air. UV-C and negative ionization are two proven ways to do that. 

Infineon provides state-of-the art LED drivers for UV-C LEDs. 

Negative ionization can be implemented in a very efficient way by using Infineon´s SiC MOSFETs.

More about CoolSiC™ MOSFETs
More about our LED drivers

Integration with smart home platform

The next generation of air purifiers will be designed to become part of the smart home system. Matter is one of the new wireless standards to address interoperability between smart home product. Infineon is one of the leading suppliers to offer Matter over Wi-Fi solution.

Documents

Documents

Design resources

Developer community

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