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Electric Vehicles

Charger Application Notes

Electric bicycle charger is a charging device specially configured for the electric bicycle battery, commonly used switching power supply chargers are divided into two categories: half-bridge and single-excited, and single-excited is divided into two categories: forward-excited and flyback. Half-bridge type high cost, good performance, commonly used in the charger with negative pulse; single-excited type low cost, high market share, the current market chargers are mostly flyback type.

SJ MOSFET series products have faster switching speed, lower conduction loss, very low gate charge (Qg), which reduces the device's power loss, improve system efficiency, optimize the switching characteristics of the device, the device has better EMI performance in the system. At the same time, superjunction MOSFETs have good robustness and are a high efficiency and high reliability solution for chargers.

Line Diagram

PFC ：

SJ MOSFET：VDS=650V-700V Ron@10V（max）=260mΩ-680mΩ

Counter-excitation:

SJ MOSFET：VDS=650V-700V Ron@10V（max）=260mΩ-680mΩ

Controller Application Notes

In the electric vehicle market, the importance of the segment of light electric vehicles (electric two-wheelers, electric three-wheelers, electric scooters) is becoming more and more significant. As a mobility tool for people's daily life, light electric vehicles have the advantage of low investment and operation and maintenance costs, which meet the budget requirements of most consumers. At the same time, it is able to be recharged through the standard grid, and these features make it a short-distance mobility tool. In the coming years, the number of light-duty electric vehicles will grow in spurts. However, users' anxiety about range is also becoming more and more significant, and how to optimize system cost and efficiency has become an urgent challenge nowadays.

The Trench MOSFET series & Super Trench MOSFET series maximize high energy efficiency while maintaining reasonable power consumption, and comprehensively improve the switching and conduction characteristics of the devices. In particular, Super Trench technology gives you lower on-state losses and better switching characteristics, and now the second generation of SGT products offers more than 20% better overall performance than the first generation, giving you higher efficiency. At the same time, if cost is more important to you, you can also choose the Normal Trench MOSFET series to get a better price/performance ratio.

Line Diagram

Recommended Products

N-channel Trench MOSFET：

VDS=60V-100V Ron@10V（max）<8mΩ

N-channel SGT MOSFET：

VDS=60V-100V Ron@10V（max）<8mΩ

Converter Application Notes

The EV converter converts the high voltage power from the EV battery to the low voltage 12V power required by the system, which is usually a non-isolated step-down solution used in EVs. As the converter works in a relatively closed environment, heat generation is critical to system stability, thus requiring a high level of converter efficiency, and low losses in the power devices themselves are especially critical throughout system operation.

The Trench MOSFET series and Super Trench MOSFET series bring high efficiency to the extreme while maintaining reasonable power consumption, improving the switching and conduction characteristics of the devices, and improving the reverse recovery characteristics of the body diode. In particular, Super Trench has comprehensively improved the on-resistance temperature characteristics of the product, effectively controlling the device on-resistance increases with temperature, to 100V products, for example, compared to ordinary trench MOSFET products, Super Trench technology will be 175 degrees under the device on-resistance multiplication factor reduced from the original 2.29 to 2.09, thus significantly Super Trench MOSFET products will be more suitable for high temperature and harsh environment applications.

Line Diagram