Asahi Kasei Microdevices current sensors power Microchip ML arc fault detection design

• Asahi Kasei Microdevices’ CZ39 and CZ3K coreless current sensors were adopted in Microchip’s machine learning-based arc-fault detection reference design.
• Design uses a dsPIC33A digital signal controller to run signal processing and ML inference on-device for faster, local arc-fault decisions.
• AKM sensors provide 100 ns response time, supporting higher-fidelity current signatures used to train models and reduce false triggers.
• Work was supported by AKM Semiconductor in San Jose during configuration, development, validation of the current-sensing setup.
• Collaboration targets protection functions across power applications, with potential interest in higher-power-density data center architectures.

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