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Coil optimization design is the key technology of transcranial magnetic stimulation applications. In order to design the coils of different specifications, the optimization design and simulation system of transcranial magnetic stimulation coil was developed based on VB and Maxwell Ansoft. The software developed in this paper can be used to calculate inductance of the coil with different parameters,...
With substantial progress in Internet of things (IoT), new challenges of EMI on IoT (IoT-EMI) measurement have emerged. The IoT-EMI behaviors are complex and dependent on the target's interactions between hardware and software. A systematic method for IoT-EMI measurement should be developed. However, the characteristics of IoT-EMI are digitally-controlled, time-varying, and software-dependent and...
This paper studies software-related microcontroller's conducted electromagnetic interference (SW-cEMI) behaviors when microcontrollers are executing different programs of the same functionality. The SW-cEMI behaviors of different program types, clock sources, and programmable PLL settings are measured and observed. Two major trends of microcontrollers are used as devices under test. The result shows...
This paper presents a combined hardware–software mechanism for the detection of electromagnetic interference of a microcontroller (μC) in daily usage. This detection mechanism is based on the instability of phase-lock loop embedded in the target μC. It can detect the presence of EMI with higher sensitivity than polling the hardware status of the μC internal registers and thus provides a better detection...
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