集成自举驱动的旁路分流辅助方案

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Abstract In the application of floating ground drive of server power supply, the drive integrated circuit (IC) basically replaces the drive line built by discrete devices. Under special working conditions, it is found that the continuous high transient impulse current will cause the internal bootstrap diode of the IC to burn out and open the circuit, resulting in abnormal driving and power supply damage. Therefore, the use of partial drive IC may not be applicable under special conditions. This paper analyzes the abnormal problem of the drive IC for the artificial intelligence (AI) server power supply under harsh conditions. On the basis of the drive IC, the bypass shunt auxiliary diode circuit is added to ensure the normal operation of various drive ICs under harsh conditions, and further improve the overall stability of the system and the diversity of material substitution.

Key words： integrated drive bootstrap diode Boot current transient spike current

Received: 19 October 2023

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	Articles by authors
	QIAN Qiuxiao
	GUO Rui
	QIAN Qiuliang

Cite this article:

QIAN Qiuxiao,GUO Rui,QIAN Qiuliang. Integrated bootstrap drive bypass shunt auxiliary scheme[J]. Electrical Engineering, 2024, 25(1): 56-60.

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http://dqjs.cesmedia.cn/EN/Y2024/V25/I1/56

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