The World‘s Best Performance IGBT Product That Responds to Energy Saving and High Performance of xEV
In this blog, let me introduce the superiority of Renesas power devices in the electric vehicle, the provision of value to customers, and the features of the Automotive IGBT product.
The traction motor of xEV (electric vehicle) has extremely high output power, and it is necessary to convert high power in the 100kW class from DC to AC by the inverter to control it. IGBTs are used as the power conversion switching devices that make up the inverter circuit. The IGBT performance is directly linked to the energy-saving and high performance of xEV, and lower power loss (high efficiency) is required in high power operation. Specifically, as shown in the figure, the on-voltage performance that determines the loss when the IGBT is energized and the switching performance that determines the loss when the IGBT switches on/off are important parameters. At the same time, it is very important to have high robustness (excellent short circuit withstand and RBSOA) for vehicle safety. However, in power devices, generally, there is a trade-off between low loss and high fracture capacity.
Figure 1. Performance required for power device (IGBT)
Renesas IGBT AEx series for traction motor control has evolved generations while breaking through this trade-off with innovative technology.
The miniaturization of the IGBT cell structure and Renesas unique high conductivity structure enable low on-voltage without sacrificing robustness, and the low gate capacitance structure realizes low switching loss.
Figure 2. Process technology evolution of AEx IGBT
From AE3 to AE5, Renesas continues to provide the market with products that have the highest level of low loss and high robustness in a timely manner.
Figure 3. Advantage of AEx IGBT
AE3 and AE4 are currently in mass production status and have been adopted by many customers worldwide and have been well received. AE5, which is under development as the next generation, is scheduled to release a working sample at the end of 2021, and many customers have already inquired about it and are considering adopting it. In the future, we are planning to develop a product lineup centered on AE5 according to the trends of xEV and customer needs, so please look forward to it.
This time, I introduced the lower power loss and high robustness, which are some of the features of the AEx series. In addition, there are other features that are of great benefit to customers, such as reduction of variation in characteristics and ease of control.
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