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Recommendation: Power modules equipped with SiC MOSFETs and SiC SBDs
Compared with MOSFET, SiC perfectly solves the problem of difficult simultaneous implementation of high voltage and high frequency in silicon-based materials. Based on compatibility with high voltage and medium frequency, SiC MOSFET has become the optimal solution for electric vehicles, charging stations, and photovoltaic inverters (without considering cost) due to its high efficiency and small size;
Gallium nitride (GaN) and silicon carbide (SiC) power transistors, two types of compound semiconductor devices, have emerged as solutions. These devices compete with long-life silicon power lateral diffusion metal oxide semiconductor (LDMOS) MOSFETs and super junction MOSFETs. GaN and SiC devices are similar in some aspects, but there are also significant differences.
To prove that your choice of SiC as the preferred power semiconductor for switch mode design is correct, please consider the following prominent features. Compared to standard or super junction MOSFETs or even IGBTs, SiC devices can operate at higher voltages, frequencies, and temperatures. Most of the power loss of other devices does not exist in SiC devices, so the efficiency of SiC devices can reach over 90% in most applications. Initially, SiC devices were more expensive than other MOSFETs or IGBTs.
The SiC module loss reduction scheme mainly considers the following four aspects: adopting low voltage and low frequency design, optimizing the driver program, optimizing the structural design, and adopting low side resonance technology.
SiC MOSFET and Si IGBT are both indispensable products for the development of electronic products. SiC MOSFET and Si IGBT have many common characteristics and differences. Therefore, the following is a comparison of their product differences:
Single FET and MOSFET have a wide range of application prospects in switch circuits and power amplifiers, and the specific choice should be determined according to the specific application scenario and requirements.
