نتایج جستجو برای: فیلتر emi
تعداد نتایج: 6209 فیلتر نتایج به سال:
In this report, the possibilities of reducing EMI in GALS systems are investigated and presented. Based on the special software tool for EMI analysis, several different abstract models of GALS circuits have been designed in order to extract a realistic pausable clock behavior. Based on the clock behavior, we have been able to analyze using our tool the current profile of each modeled system, bo...
This paper describes the relationship among damped oscillation, frequency-impedance characteristics (f-z characteristics) and conducted EMI occurring in induction cooking. The R-L-C equivalent circuit of induction pot is proposed. The relationship among ring, f-z characteristic and conducted EMI are verified by experiment. Finally, the reduction technique for damped oscillation is proposed usin...
Electromagnetic interference (EMI) includes any electromagnetic field signal that can be detected by device circuitry, with potentially serious consequences: incorrect sensing, pacing, device mode switching, and defibrillation. This is a unique case of extracardiac EMI by alternating current leakage from a submerged motor used to recycle chlorinated water, resulting in false rhythm detection an...
INTRODUCTION The aim of the study was to assess and classify incidents of electromagnetic interference (EMI) by second-generation and third-generation mobile phones on critical care medical equipment. METHODS EMI was assessed with two General Packet Radio Service (GPRS) signals (900 MHz, 2 W, two different time-slot occupations) and one Universal Mobile Telecommunications System (UMTS) signal...
اصطلاح تداخل الکترومغناطیسی (emi) به اختلال عملکرد یک سیستم مهندسی به علت تداخل الکترومغناطیسی در همان سیستم یا با سیستم های دیگر اشاره می کند. طراحی مدرن سیستم های الکتریکی نیازمند آن است که این سیستم ها با محیط الکترومغناطیسی اطراف خود سازگار باشند. طراحی باید به گونه ای باشد که این اغتشاشات کمترین ضربه را به عملکرد سیستم وارد آورد. تمامی چنین رخدادهایی را می توان به عنوان تداخل الکترومغناطیس...
The increasingly larger scale of integration in electronic systems has demanded a corresponding increase in the density of the power supplies of these systems. To some extent, this demand has been met by resorting to higher switching frequency power converters (-1 MHz). One of the major problems with high frequency switching converters is the generation of radio frequency signals which may inte...
OBJECTIVE Orientation Week is a series of events at the beginning of the university year that introduces incoming students to university life. It is also the period of the academic year when students consume more alcohol than at any other time. Recently, we demonstrated that alcohol consumption during Orientation Week was related to alcohol consumption during the academic year. The aim of the p...
External sources, either within or outside the hospital environment, may interfere with the appropriate function of pacemakers which are being implanted all around the world in current medical practice. The patient and the physician who is responsible for follow-up of the pacing systems may be confronted with some specific problems regarding the various types of electromagnetic interference (EM...
سازگاری الکترومغناطیسی در منابع تغذیه سوئیچینگ که خود از منابع نویز هستند، اهمیت ویژهای دارد. تداخل الکترومغناطیسی (EMI) به شکل هدایتی و یا تشعشعی به بخشهای حساس میرسد و در کار آنها اختلال میکند. از طرف دیگر، استانداردهای سازگاری الکترومغناطیسی، اجبار دیگری را در کاهش نویز مبدلهای سوئیچینگ ایجاد کرده است. بخش مهمی از نویز ناشی از جریان نویز مد مشترک عبوری از عناصر پارازیتی به سمت زمین مدار ...
Implantable rhythm device (IRD) is the generic name for the group of implantable devices used for diagnosis and treatment of cardiac arrhythmias. Devices in this category include cardiac pacemakers, implantable cardioverter defibrillators and implantable loop recorders. Since these devices have complex microelectronic circuitry and use electromagnetic waves for communication, they are susceptib...
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