Fast charging safety protection method based on gallium nitride module

By generating port risk fingerprints and secure power corridors, the lack of finesse and differentiation in output control and anomaly handling during fast charging of gallium nitride modules is addressed. This enables fine-grained path constraints and targeted protection for the fast charging process, thereby improving operational stability and safety.

CN122068615BActive Publication Date: 2026-07-21GUANGDONG LDNIO ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG LDNIO ELECTRONICS TECH CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing gallium nitride module fast charging technology lacks refinement and differentiation in output control and anomaly handling, making it difficult to adapt to process safety management in complex fast charging scenarios.

Method used

By collecting port voltage and current change data, a port risk fingerprint is generated, the output voltage range and power ramp-up path are defined, a safe power corridor is generated, and the abnormal sources and risks of the fast charging process are identified and classified, and targeted protection and control are implemented.

Benefits of technology

It achieves refined path constraints and targeted protection control for the fast charging process, improving the operational stability and safety of gallium nitride modules under different connection states.

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Abstract

The application discloses a fast charging safety protection method based on a gallium nitride module, relates to the technical field of fast charging safety protection, and comprises the following steps: collecting port voltage change data and port current change data of a power receiving device at the moment of access, and performing trend identification and coupling relationship analysis on the transient change segment to generate a port risk fingerprint; limiting an output voltage range and a power climbing path based on the port risk fingerprint, and restraining high-voltage gear entering conditions and staying time, to generate a safety power corridor; and controlling the gallium nitride module to gradually increase power output according to the safety power corridor, and continuously keeping the running state within the allowed interval to obtain a running state in the corridor.
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