Induction cooking

Semiconductor solutions for energy efficient, high power, and feature-rich induction cooking applications with precise and safe heating control

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Overview

When designing induction cooking appliances, there are several key elements to consider. These include integrating energy efficiency, managing the diverse standards for safety and security, wireless connectivity, extended product lifetime, and smart features for an intuitive user experience. Infineon's advanced solutions are ready for your smart induction cooktop, induction rice cooker, or other induction technology and heating stove design.

Benefits

  • Energy efficient inverter power
  • Comprehensive product portfolio
  • Leader in efficient semiconductors
  • OPTIGA™ Trust powered security
  • Fast and easy wireless connectivity
  • Full functionality reference kit
  • Cutting edge PSOC™ microcontrollers
  • Advanced audio w/ MEMS microphones
  • Intuitive HMI designs enabled
  • High efficiency WBG solutions
  • Matter ready
  • AI/ML UI and UX unlocked

Block diagram

About

Energy-efficient induction technology

Featuring high efficiency, accurate control, intuitive UI, and smart connectivity, induction cooktops and heaters are a smart choice for modern kitchens. Appliances in this category can take many forms, from two- or four smart induction hob integrated into the kitchen countertop, to devices like induction rice cookers and induction water kettles that are usually more portable and can sit on the countertop itself. Infineon's solutions on this webpage are focused on induction cooktops and induction rice cookers specifically, but the solutions presented are applicable in most induction cooking and heating applications, such as tabletop smart induction cookers, induction heaters, induction coffee makers, and induction hot plates or hot pots.

No matter which type of induction technology for cooking or heating appliance you are designing, Infineon's solutions enable higher efficiency, flexible connectivity options, intuitive HMI, and artificial intelligence capability.

IGBTs for inverter power topologies

Inverter power is a crucial component, responsible for efficiently converting electrical energy into a high-frequency alternating current to power induction heating elements.

  • Our 650 V Reverse Conducting R6 IGBT family balances between power losses and EMI behavior, making it suitable for power efficient half-bridge resonant switching applications up to 75 kHz. The R6 devices feature improved performance, including lower VCEsat and diode forward voltage, reduced turn-off losses, and soft current turn-off waveforms, resulting in lower power dissipation, better thermal management, and easier EMI compliance.
  • Need a cost optimized solution for quasi-resonant topologies? Infineon's 1400 V Reverse Conducting R5L IGBTs are power semiconductor devices designed specially for induction cooking and heating, securing improved vertical design, edge termination, and narrower losses distribution vs. the existing Reverse Conducting R5 family. The devices feature low conduction and switching losses, high ruggedness, and increased breakdown voltage, providing benefits such as increased energy efficiency, improved reliability, and better design flexibility, especially in induction rice cookers and cost-optimized induction cooking tabletop units.
R6 & R5L reverse conducting IGBTs
WBG solutions for inverter power topologies

While IGBT-based induction cooking and heating is already the most efficient type of cooking and heating in the kitchen, future-proof WBG technology like Silicon Carbide (SiC) MOSFETs and Gallium Nitride (GaN) HEMTs can increase this efficiency even further, with higher peak output power and higher switching frequencies. 

Under typical temperature behavior in the Quasi-resonant/single-ended topology, Infineon's CoolSiC™ family of >=1200 V Silicon Carbide MOSFETs in the TO-247 package feature the best RDS(on) stability compared to IGBTs and GaN, allowing for higher power, higher switching frequency up to 40 KHz, and increased efficiency at 96.3%. 

In the half bridge topology, 650 V CoolSiC™ MOSFETs reduce the RDS(on) compared to IGBTs and provide the best temperature stability, with switching frequencies up to 200 or even 250 KHz, meaning more granular power delivery.

Infineon CoolGaN™ GaN HEMTs are offered in similar excellent RDS(on) options and can operate at even higher frequencies of up to 1 MHz. CoolGaN™ today uses modern TOLL & TOLT packages for easy assembly. 

The reduced RDS(on) options of CoolSiC™ and CoolGaN™ enable superior continous output power, best efficency, and consequently, reduced cooling requirements. 

CoolSiC™ MOSFETs
CoolGaN™ HEMTs
Inverter control solutions

For controlling the inverter and ensuring reliable operation, zero-crossing detection, safety monitoring, pan and material detection, and many more functions of modern induction cooktops, Infineon's PSOC™ MCU families offer a wide range of high quality options. 

  • To suit smaller cooktops with two heating elements (hobs), Infineon offers the cost-optimized PSOC™ 4 family, with its Arm® Cortex®-M0 architecture, highly configurable I/O interface, and CapSense capability. 
  • For larger cooktop solutions with four heating elements, the modern PSOC™ C3M family with its dual Arm® Cortex®-M33 architecture is specifically designed for inverterization. These MCUs offer designers the choice between the more budget-friendly entry line and higher performance main line microcontrollers, both of which feature higher system efficiency, real time control, and robust safety features. This family also functions with the higher modulation frequencies enabled by WBG technologies. 
  • If you need increased flexibility with versatile use cases for four hob designs, the dual core PSOC™ 6 family of MCUs based on Arm® Cortex®-M4/M0+, like those used in the inverter control board of REF-SHA3K3IHWR5SYS, offer ultra-low power consumption, robust security features, capacitive sensing, and even connectivity.
PSOC™ 4 & 6 MCUs
PSOC™ Control C3M MCUs
Touch interface solutions

Don’t compromise on user experience. Integrate Infineon’s Human-Machine Interface (HMI) solutions for smart induction cooking designs. With an intuitive, multi-sensing design, and reliable properties, Infineon’s HMI solutions enable complex touch sensing interfaces resistant to liquids.

  • Designed to be fast and responsive, the CAPSENSE™-capable (capacitive touch) microcontrollers, such as PSOC™ 4, ensure a seamless user experience. Featuring world leading Signal-to-Noise ratio to enable resistance to liquids, 120 hz sample rate for fast and responsive inputs as well as ultra-low power standby current with deep sleep sensing functionality. PSOC™ 4 Multi-Sense MCUs are an excellent choice for your next HMI design. They are even used in our smart induction cooktop reference design, REF-SHA3K3IHWR5SYS.
  • Enabling Edge AI voice commands, the PSOC™ 6 and PSOC™ Edge MCUs further elevate the user experience, making cooking easier, faster, and more natural, especially when paired with Infineon's high SNR XENSIV™ MEMS microphones. 

Save HMI development time with the ModusToolbox™ IDE for all PSOC™ families, which is equipped with Software Development Kits (SDK), device drivers, and debugging and testing tools. 

PSOC™ MCU families
REF-SHA3K3IHWR5SYS Induction Cooking Reference Kit
Auxiliary power supply solutions

Infineon's CoolSET™ family of highly integrated power supply ICs provide energy efficiency through low standby power designs in the auxiliary power systems of induction cooking applications.

  • Low standby power can be achieved using 5th generation CoolSET™ auxiliary power supply ICs, reducing noise and energy consumption. Additionally, Infineon’s CoolSET™ family features high integration elements like input overvoltage, brownout, and over-power protection. Lower standby levels also reduce audible noise and makes the design more cost efficient.
  • Get started with the CoolSET™ family for auxiliary power by using Infineon’s PowerEsim simulation and calculation tool. This tool is compatible with fly back and buck DC-DC converters with all available CoolSET™ devices. As part of the inverter control board, the ready-to-use smart induction cooktop reference kit includes two CoolSET™ flyback auxiliary power supply controllers.

Infineon’s state-of-the-art auxiliary power solutions for smart induction cooktops provide highly efficient, reliable, and compact power conversion, while minimizing energy losses and heat generation.

CoolSET™ power supply Ics
Induction Cooking Reference Kit REF-SHA3K3IHWR5SYS

Energy-efficient induction technology

Featuring high efficiency, accurate control, intuitive UI, and smart connectivity, induction cooktops and heaters are a smart choice for modern kitchens. Appliances in this category can take many forms, from two- or four smart induction hob integrated into the kitchen countertop, to devices like induction rice cookers and induction water kettles that are usually more portable and can sit on the countertop itself. Infineon's solutions on this webpage are focused on induction cooktops and induction rice cookers specifically, but the solutions presented are applicable in most induction cooking and heating applications, such as tabletop smart induction cookers, induction heaters, induction coffee makers, and induction hot plates or hot pots.

No matter which type of induction technology for cooking or heating appliance you are designing, Infineon's solutions enable higher efficiency, flexible connectivity options, intuitive HMI, and artificial intelligence capability.

IGBTs for inverter power topologies

Inverter power is a crucial component, responsible for efficiently converting electrical energy into a high-frequency alternating current to power induction heating elements.

  • Our 650 V Reverse Conducting R6 IGBT family balances between power losses and EMI behavior, making it suitable for power efficient half-bridge resonant switching applications up to 75 kHz. The R6 devices feature improved performance, including lower VCEsat and diode forward voltage, reduced turn-off losses, and soft current turn-off waveforms, resulting in lower power dissipation, better thermal management, and easier EMI compliance.
  • Need a cost optimized solution for quasi-resonant topologies? Infineon's 1400 V Reverse Conducting R5L IGBTs are power semiconductor devices designed specially for induction cooking and heating, securing improved vertical design, edge termination, and narrower losses distribution vs. the existing Reverse Conducting R5 family. The devices feature low conduction and switching losses, high ruggedness, and increased breakdown voltage, providing benefits such as increased energy efficiency, improved reliability, and better design flexibility, especially in induction rice cookers and cost-optimized induction cooking tabletop units.
R6 & R5L reverse conducting IGBTs

WBG solutions for inverter power topologies

While IGBT-based induction cooking and heating is already the most efficient type of cooking and heating in the kitchen, future-proof WBG technology like Silicon Carbide (SiC) MOSFETs and Gallium Nitride (GaN) HEMTs can increase this efficiency even further, with higher peak output power and higher switching frequencies. 

Under typical temperature behavior in the Quasi-resonant/single-ended topology, Infineon's CoolSiC™ family of >=1200 V Silicon Carbide MOSFETs in the TO-247 package feature the best RDS(on) stability compared to IGBTs and GaN, allowing for higher power, higher switching frequency up to 40 KHz, and increased efficiency at 96.3%. 

In the half bridge topology, 650 V CoolSiC™ MOSFETs reduce the RDS(on) compared to IGBTs and provide the best temperature stability, with switching frequencies up to 200 or even 250 KHz, meaning more granular power delivery.

Infineon CoolGaN™ GaN HEMTs are offered in similar excellent RDS(on) options and can operate at even higher frequencies of up to 1 MHz. CoolGaN™ today uses modern TOLL & TOLT packages for easy assembly. 

The reduced RDS(on) options of CoolSiC™ and CoolGaN™ enable superior continous output power, best efficency, and consequently, reduced cooling requirements. 

CoolSiC™ MOSFETs
CoolGaN™ HEMTs

Inverter control solutions

For controlling the inverter and ensuring reliable operation, zero-crossing detection, safety monitoring, pan and material detection, and many more functions of modern induction cooktops, Infineon's PSOC™ MCU families offer a wide range of high quality options. 

  • To suit smaller cooktops with two heating elements (hobs), Infineon offers the cost-optimized PSOC™ 4 family, with its Arm® Cortex®-M0 architecture, highly configurable I/O interface, and CapSense capability. 
  • For larger cooktop solutions with four heating elements, the modern PSOC™ C3M family with its dual Arm® Cortex®-M33 architecture is specifically designed for inverterization. These MCUs offer designers the choice between the more budget-friendly entry line and higher performance main line microcontrollers, both of which feature higher system efficiency, real time control, and robust safety features. This family also functions with the higher modulation frequencies enabled by WBG technologies. 
  • If you need increased flexibility with versatile use cases for four hob designs, the dual core PSOC™ 6 family of MCUs based on Arm® Cortex®-M4/M0+, like those used in the inverter control board of REF-SHA3K3IHWR5SYS, offer ultra-low power consumption, robust security features, capacitive sensing, and even connectivity.
PSOC™ 4 & 6 MCUs
PSOC™ Control C3M MCUs

Touch interface solutions

Don’t compromise on user experience. Integrate Infineon’s Human-Machine Interface (HMI) solutions for smart induction cooking designs. With an intuitive, multi-sensing design, and reliable properties, Infineon’s HMI solutions enable complex touch sensing interfaces resistant to liquids.

  • Designed to be fast and responsive, the CAPSENSE™-capable (capacitive touch) microcontrollers, such as PSOC™ 4, ensure a seamless user experience. Featuring world leading Signal-to-Noise ratio to enable resistance to liquids, 120 hz sample rate for fast and responsive inputs as well as ultra-low power standby current with deep sleep sensing functionality. PSOC™ 4 Multi-Sense MCUs are an excellent choice for your next HMI design. They are even used in our smart induction cooktop reference design, REF-SHA3K3IHWR5SYS.
  • Enabling Edge AI voice commands, the PSOC™ 6 and PSOC™ Edge MCUs further elevate the user experience, making cooking easier, faster, and more natural, especially when paired with Infineon's high SNR XENSIV™ MEMS microphones. 

Save HMI development time with the ModusToolbox™ IDE for all PSOC™ families, which is equipped with Software Development Kits (SDK), device drivers, and debugging and testing tools. 

PSOC™ MCU families
REF-SHA3K3IHWR5SYS Induction Cooking Reference Kit

Auxiliary power supply solutions

Infineon's CoolSET™ family of highly integrated power supply ICs provide energy efficiency through low standby power designs in the auxiliary power systems of induction cooking applications.

  • Low standby power can be achieved using 5th generation CoolSET™ auxiliary power supply ICs, reducing noise and energy consumption. Additionally, Infineon’s CoolSET™ family features high integration elements like input overvoltage, brownout, and over-power protection. Lower standby levels also reduce audible noise and makes the design more cost efficient.
  • Get started with the CoolSET™ family for auxiliary power by using Infineon’s PowerEsim simulation and calculation tool. This tool is compatible with fly back and buck DC-DC converters with all available CoolSET™ devices. As part of the inverter control board, the ready-to-use smart induction cooktop reference kit includes two CoolSET™ flyback auxiliary power supply controllers.

Infineon’s state-of-the-art auxiliary power solutions for smart induction cooktops provide highly efficient, reliable, and compact power conversion, while minimizing energy losses and heat generation.

CoolSET™ power supply Ics
Induction Cooking Reference Kit REF-SHA3K3IHWR5SYS

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Documents

Design resources

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