Recently, Shenzhen KSTAR Science and Technology Co., Ltd. (KSTAR) announced to deepen cooperation with Infineon China in KSTAR's high-power, high-frequency UPS systems. Infineon will provide a comprehensive portfolio of power semiconductor solutions, including its 1200V CoolSiC™ MOSFETs and diodes, 650V CoolSiC™ MOSFETs, and EiceDRIVER™ single-channel isolated gate drivers.

Having collaborated for over three decades,  KSTAR and Infineon have established a close cooperation on in UPS and photovoltaic (PV) inverter technologies. Being KSTAR’s key semiconductor supplier, Infineon has driven the evolution of power devices—from Insulated Gate Bipolar Transistors (IGBTs) to Silicon Carbide (SiC)-based solutions—thereby enhancing the application value of advanced power semiconductors in UPS systems. The collaboration has also expanded into the renewable energy sector, where Infineon's power modules are widely adopted in KSTAR's PV inverters, setting new benchmarks for power density and energy efficiency.  

Addressing Global Demand for Next-Gen Data Centers

As data centers worldwide rapidly transition toward higher efficiency and compact designs, demand for high-frequency, medium-to-high-power UPS systems continues to surge. Industry analysis indicates that with the proliferation of 5G, AI, and cloud computing, the global data center market is projected to exceed $15 billion by 2025. UPS systems, as critical power infrastructure, now face increasingly stringent requirements for efficiency, power density, and reliability. Traditional silicon-based devices, however, facing limitations in efficiency, thermal managementand size, posing challenges to industry progress. Against this backdrop, KSTAR and Infineon have deepened their collaboration to achieve a breakthrough in KSTAR's 100kVA online UPS system, delivering next-generation solutions that prioritize high frequency, high efficiency, and ultra-reliability.  

By leveraging Infineon’s full product portfolio, KSTAR has elevated its UPS power density to 37.95W/in³, reduced system volume by 39%, and achieved industry-leading efficiency levels of over 98% in online mode and 99% in HECO mode. These advancements position KSTAR as a key enabler of next-generation green data centers, offering power solutions that balance performance and sustainability. 

Customer-Centric Approach: Global Reach and Reliable Delivery

KSTAR places customer needs at the forefront. Through its close cooperation with Infineon, KSTAR ensures stable supply of core components, bolstering project delivery capabilities for clients worldwide. Currently, KSTAR’s UPS products serve over 180 countries and regions. According to Omdia and CCID Consulting reports, KSTAR ranks as the world’s fifth-largest UPS supplier and has maintained its position as China’s top-selling domestic UPS brand for 23 consecutive years.  

Executive Perspectives

Mr. Chen Jia, Vice President of KSTAR, stated: “KSTAR remains committed to pioneering reliability and energy efficiency in UPS technologies. Infineon’s CoolSiC™ MOSFETs, with their exceptional performance, have been instrumental in enabling the three core advancements of our UPS systems: high frequency, high efficiency, and high reliability. By integrating Infineon’s device-level innovations with KSTAR’s system-level architecture, this collaboration not only redefines the limits of power design but also accelerates the data center industry’s transition toward high-efficiency, low-carbon goals.”  

Mr. Yu Daihui, Senior Vice President of Infineon Technologies and Head of Industrial & Infrastructure for Greater China, commented:“Infineon continues to lead power technology innovation, offering end-to-end solutions from core devices to system-level designs for the UPS industry. Our cutting-edge CoolSiC™ MOSFETs, combined with isolated drivers, CoolMOS™, and thyristor modules, form a synergistic portfolio that pushes the boundaries of efficiency, density, and reliability. We are proud to empower partners like KSTAR in building next-generation UPS architectures.”

About KSTAR

Shenzhen KSTAR Science and Technology Co., Ltd. (SZSE: 002518), founded in 1993 and listed on the Shenzhen Stock Exchange in 2010, is a national leader in technological innovation. Recognized as a National Enterprise Technology Center, a National Software Key Enterprise, and a National Green Factory, KSTAR operates CNAS-accredited laboratories and TÜV Rheinland-witnessed testing facilities. For 32 years, KSTAR has specialized in R&D and manufacturing of UPS systems, precision air conditioners, micro-modules, batteries, PV inverters, energy storage solutions, and EV charging stations. Its UPS products rank fifth in global sales and are distributed across 180+ countries and regions.  

Learn more:http://www.kstar.com

About Infineon

Infineon Technologies AG is a global semiconductor leader in power systems and IoT. Infineon drives decarbonization and digitalization with its products and solutions. The Company had around 58,060 employees worldwide (end of September 2024) and generated revenue of about €15 billion in the 2024 fiscal year (ending 30 September). Infineon is listed on the Frankfurt Stock Exchange (ticker symbol: IFX) and in the USA on the OTCQX International over-the-counter market (ticker symbol: IFNNY).

Explore more: http://www.infineon.com 

News updates:https://www.infineon.com/cms/en/about-infineon/press/market-news/