Abstract
Advanced automotive electronic-control technology has led to added electronic equipment in the vehicle. Frequencies and power have gradually increased in the vehicle, creating a denser atmosphere of electromagnetic waves. The automotive components tend to produce Electromagnetic Interference (EMI). This will greatly contribute to EMI in the vehicle, thus disturbing electrical/electronic equipment and possibly damaging electrical/electronic components. Implantable Cardioverter Defibrillator (ICD) monitor your heart rate with a battery-powered device placed under the skin. ICD is connected to heart using thin wires. An electric shock will be delivered if it detects an abnormal heart rhythm if your heart is wildly beating and too fast. These medical devices tend to malfunction when they are exposed to high levels of EMI radiation. Electromagnetic compatibility (EMC) regulations must be met by the automotive industry and individual vehicle manufacturers. Regulatory compliance to EMC standards and CISPR 25 for automotive application circuits must be met which are not achieved under certain circumstances. For medical devices like ICDS CISPR 22 standards must be met. The radiation from EMI is capable of causing pacemaker or ICD malfunctions, ICDs to send shocks that aren’t needed, and EMI can interfere with PA sensor readings. Here, two types of filtering techniques have been designed in order to mitigate the CM noise which affects performance of Electromagnetic Compatibility (EMC). The results were compared, and the effective filtering solution is identified to reduce the conducted emission due to common-mode noise for the range of frequency from 150 kHz to 18 GHz according to the standard. As per EMC standard CISPR 22, the RF inductor is depicted and investigated within 150 kHz–30 MHz frequency range. The capacitive and parasitic impedance are calculated and used in the simulation process. This allows us to reduce the noise by as much as 30 dB which is an efficient noise reduction.
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Sasipriya, S., Ruth Anita Shirley, D., Rincy, A.R., Sruthi, S., Yazhini, K. (2023). Effective EMI Reductıon in Medical Devices and Automotive Power Converters. In: Bindhu, V., Tavares, J.M.R.S., Vuppalapati, C. (eds) Proceedings of Fourth International Conference on Communication, Computing and Electronics Systems . Lecture Notes in Electrical Engineering, vol 977. Springer, Singapore. https://doi.org/10.1007/978-981-19-7753-4_38
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