DENSO Develops Its First Inverter Using SiC
KARIYA, Japan (Mar. 31, 2023) – DENSO CORPORATION, a leading mobility supplier, announced it has developed its first-ever inverter with
KARIYA, Japan (Mar. 31, 2023) – DENSO CORPORATION, a leading mobility supplier, announced it has developed its first-ever inverter with silicon carbide (SiC) semiconductors.
During the conversion process, some energy is lost as heat. State-of-the-art silicon inverters operate at 98% efficiency, whereas SiC inverters can operate at about 99% over wide-ranging power levels and can produce optimal quality frequency. While the 1% increase in efficiency might seem small, it represents a 50% reduction in energy loss.
This topology is flexible and up to 98.5% efficient. SiC's higher voltage handling capabilities are ideal here. SiC manufacturer Infineon created a 1500V PV string inverter reference design that uses active neutral point clamped (ANPC) SiC MOSFET technology and operates at 48kHz.
A cruising test conducted under specific conditions by BEV using SiC semiconductor inverters demonstrated inverters with SiC power semiconductor reduce power loss less than half of ones with Si semiconductor. As a result, the energy efficiency of BEVs is improved and cruising range is extended.
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