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This paper proposes a measurement-based method to estimate application (APP) specific EMI on a device running a time-sharing multi-tasking operating system (OS). The proposed method includes a near-field measurement technique for APP-specific EMI and an algorithm which can estimate system EMI with any different APPs execution sequences. Because of the task-scheduling feature, the execution order of...
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...
Electronic products are now essential to daily lives. Although power-saving are well known for consumers, electromagnetic compatibility (EMC) issues are the most critical issues which determine the pass/fail criteria of electronic products coming into the market. Since modern software can control almost any device hardware features and EMC is just one of them, software is capable of controlling it...
This paper studies the impact of EMC on a programmable PLL feature of both FPGA-based IC and PIC series microcontroller (μC). We use ACTEL FPGA IC the target IC and design the testing board according to IEC standard. By using the TEM-CELL method to measure the electromagnetic radiation from the circuit board, different PLL EMC behaviors of the PIC μC with the FPGA-based design are compared. Generally,...
Although the ICEMC measurement standards at present provides a test program guideline for system under test to simplify the EMC test, papers are suggested that different programs running on such systems do have their EMC effects. This paper proposes an efficient and flexible methodology to simulate irregular and long time instruction current waveform. This methodology is based on ICEM model and is...
Other papers have suggested that different application programs running on a digital system have their own EMC effects. This paper proposes two efficient and flexible techniques to improve the simulation efficiency of techniques instruction current waveform proposed by our laboratory. Experimental results show the efficiency is improved while the simulation quality remains the same.
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