Samsung's first MOSFET-based refrigerator inverter design uses Infineon's 600V CoolMOS™ PFD7

Samsung's first MOSFET-based refrigerator inverter design uses Infineon's 600 V CoolMOS™ PFD7

Infineon Technologies AG has supplied Samsung Electronics Co., Ltd. with power products that offer the highest energy efficiency and lowest noise. These power devices have been integrated into Samsung's latest single-door (RR23A2J3XWX, RR23A2G3WDX) and double-door (RF18A5101SR) inverter refrigerators. Inverter is an emerging trend in contemporary inverter design that uses DC to AC conversion. Compared to traditional on/off control, inverters allow product applications to run more quietly and smoothly, while also reducing average power consumption.

To meet Samsung's requirements for improved efficiency, lower system costs and reduced noise, Digi Touch Cool™ and Curd Maestro™ use a variety of Infineon power solutions: EiceDRIVER™ gate driver IC, CoolSET™ Gen 5 IC for AC/DC conversion, and 600 V CoolMOS™ PFD7 for driving compressor motors. This is the first time that Samsung's refrigerators use discrete devices in the compressor motor drive design instead of power modules.

The 600 V CoolMOS PFD7 super junction MOSFET integrates a superior reverse fast recovery body diode, which improves the device's reverse recovery performance and provides the industry's fastest reverse recovery time (trr), making it an ideal choice for home appliance motor drive designs. Compared with module-based drive designs, the use of MOSFETs can better reduce losses, especially under light load conditions, and the efficiency can be increased by 1.7%. Not only that, this innovative approach also enables heat sink-free system design, reducing costs by 10%, while also extending the service life of the refrigerator.

“Until now, the vast majority of home appliances have been designed as modules,” said Stefan Obersriebnig, Vice President of High Voltage Products at Infineon Technologies’ Power and Sensor Systems division. “We are pleased that Infineon’s leading MOSFET technology can help Samsung achieve higher efficiency levels at lower system costs in home appliances.”

About Infineon Technologies

Infineon Technologies AG is a world-leading semiconductor technology company that makes people's lives more convenient, safer and environmentally friendly. Infineon's microelectronic products and solutions will lead you to a better future. In fiscal year 2020 (ending September 30), the company's sales reached 8.5 billion euros and it has approximately 46,700 employees worldwide. In April 2020, Infineon officially completed the acquisition of Cypress Semiconductor, successfully becoming one of the top ten semiconductor manufacturers in the world.

Infineon Technologies China

Infineon Technologies AG officially entered the Chinese mainland market in 1995. Since the establishment of its first company in Wuxi in October 1995, Infineon's business has achieved very rapid growth. With about 2,000 employees in China, Infineon has become an important driving force for the development of Infineon's global business. Infineon has established a complete industrial chain in China covering R&D, production, sales, marketing, technical support, etc., and has carried out in-depth cooperation with leading domestic enterprises and universities in sales, technology R&D, talent training and other aspects.