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inside the car, all integrated circuits “IC” have to be optimized to survive against severe external aggressions. The noise generated by each activity inside each IC must be low enough, to not disturb the environment. As known nowadays, DC-DC converters can significantly impact the Electromagnetic Compatibility “EMC” performances, and mainly the emission ones. Unfortunately, simulation with linear...
Inside the car, all integrated circuits “IC” have to be optimized to survive against severe external aggressions. The noise generated by each activity inside each IC must be low enough, to not disturb the environment. As known nowadays, DC-DC converters can significantly impact the Electromagnetic Compatibility “EMC” performances, and mainly the emission ones. Unfortunately, simulation with linear...
This paper presents an analysis of the high frequency disturbances from switching operation in a SoC (System on Chip) Buck converter for EMC (Electromagnetic Compatibility) performance improvement. The impact of key design parameters is handled with an analytic approach, allowing Conducted Emission (CE) spectrum prediction.
Often in automotive applications, a well optimized board with decoupling capacitors in proximity of the Integrated Circuit is used to improve EMC performances in system level. With increased safety concerns on mechanical vibrations that leads to lost interconnections of components, there is demand to have a complete solution inside the IC.
This work evaluates how reducing the conducted emission of battery line of an alternator regulator by reducing substrate majority carrier injection of a charge pump circuitry. The investigation shows the significant impact of substrate Nwell junction (PN junction) of poly poly capacitors on conducted emission on battery input /output during charge pumping. When Nwell layer of poly-poly capacitors...
In particular cases, system level stresses such as EMC stress (Direct Power Injection, Bulk Current Injection, and Radiated Field) and ESD gun stress are directly applied to the integrated circuits with no external protections [1]. Consequently, the integrated circuits have to be optimized to survive against severe external aggressions but also to ensure normal operations during the electromagnetic...
Integra ( R), a dermal replacement, is used as an immediate and temporary coverage for acute wounds, after which, autograft is used to reconstitute permanently the epidermal coverage. The fibrin sheet-cultured epithelium autograft (FS-CEA) could provide an effective alternative to the surgical procedure. To evaluate this hypothesis, we compared the association of Integra ( R)/FS-CE...
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