Design on overvoltage protection circuit for automotive power switching MOSFET

Haofan Yang; Qian Zhou; Min He; Dongyuan Zhai; Jiwu Lu

doi:10.1117/12.3030123

5 June 2024 Design on overvoltage protection circuit for automotive power switching MOSFET

Haofan Yang, Qian Zhou, Min He, Dongyuan Zhai, Jiwu Lu

Proceedings Volume 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024); 131633B (2024) https://doi.org/10.1117/12.3030123
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 2024, Xi'an, China

Abstract

The power MOSFET is a crucial component in power electronics technology, playing a key role in achieving efficient electricity transformation, power regulation and processing, as well as energy allocation. It is commonly employed as a switch in vehicle power applications. Power devices are particularly sensitive to fluctuations in supply voltage, especially when operating within a wide input voltage range and integrated into high-voltage power modules. Exceeding the rated upper limit of the input voltage can result in localized temperature rise, excessive power dissipation, and potentially lead to breakdown damage. This paper presents a novel over-voltage protection circuit for power semiconductor devices, utilizing multi-mode protection trigger technology. The proposed circuit is specifically designed for newly-developed power integrated circuits, offering improved anti-noise capability, faster response and recovery speed, and high hysteresis reliability to mitigate frequent triggering. Through simulation, the circuit is validated to ensure stable operation of the power MOSFET below the safety.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Haofan Yang, Qian Zhou, Min He, Dongyuan Zhai, and Jiwu Lu "Design on overvoltage protection circuit for automotive power switching MOSFET", Proc. SPIE 13163, Fourth International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2024), 131633B (5 June 2024); https://doi.org/10.1117/12.3030123

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KEYWORDS

Circuit switching

Field effect transistors

Design

Device simulation

Transistors

Resistors

Analog electronics

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