Introduction: Modern life exposes us all to an ever-increasing number of potential sources of electromagnetic interference (EMI) and patients with Implantable rhythm devices (IRD) like pacemakers, implantable cardioverter defibrillators or implantable loop recorders often ask about the use of microwave ovens, walking through airport metal detectors and the use of cellular phones. Electromagneti...

Conducted electromagnetic interference (EMI) is a major cause of concern in switch-mode power supplies (SMPSs) which commonly use standard pulsewidth modulation (PWM). In this paper, Sigma–Delta ( ) modulation is proposed as an alternative switching technique to reduce conducted EMI from an SMPS. The result of using modulation is a spread in the spectrum of the conducted emissions so that large...

This paper presents a new type of electromagnetic interference (EMI) measurement system. An EMI Camera LSI (EMcam) with a 12 × 4 on-chip 250 × 50 μm2 loop antenna matrix in 65 nm CMOS is developed. EMcam achieves both the 2D electric scanning and 60 μm-level spatial precision. The down-conversion architecture increases the bandwidth of EMcam and enables the measurement of EMI spectrum up to 3.3...

AIM To study in vitro influence of mechanochemically activated (MA) doxorubicin (DOXO) and electromagnetic irradiation (EMI) on human lung carcinoma A-549 cells. METHODS Solid state DOXO was MA by input energy 20 W/g during 5 min. Tumor cells were exposed to 40 MHz EMI with power density 2 W/cm(2) at temperature 37 degrees C. RESULTS Particles of MA DOXO have sizes 10 time smaller than offi...

We studied 80 subjects (63 M, 17 F; 23-82 yrs) and related lung computerized tomography (CT) density with age, height, spirometry, lung volumes, diffusing capacity and arterial blood gas tensions. These subjects demonstrated a wide range of physiological impairment (forced expiratory volume in one second (FEV1) 8-116% predicted; diffusing capacity (Kco) 15-139% predicted; arterial oxygen tensio...

Electro-mechanical impedance (EMI) sensing technique based on smart piezoelectric materials has emerged as a potential tool for the implementation of an online monitoring system for structural health monitoring. Many nondestructive methods have limited capabilities in monitoring of the rubber aging in a continuous manner. In this study, the feasibility of the EMI sensing technique for the onlin...

In this paper, an advanced ultra-fast, broadband time domain EMI measurement system is described. Measurements were performed in the 30–1000 MHz range. The digital signal processing of EMI measurements allows to emulate in real-time the modes of conventional analogous equipment, e.g. Peak-, Average-, RMSand Quasi-PeakDetector. With the presented time domain measurement system the measurement ti...

This paper proposes the process to predict and analyze the conducted electromagnetic interference (EMI) emission using the impedance mismatch approach. Five steps of this process are introduced and analyzed. The impedance mismatch criterion is proposed based on current and voltage waveforms in time domain. The impedance mismatch fixtures and EMI measured results show how the relationship of imp...

This paper describes an electromagnetic interference (EMI)resisting Bandgap voltage reference. Its basic topology is a Kuijk Bandgap with a PMOS pass device and an active load, improved to generate a low voltage output (441.3mV) via substituting BJT by MOSFET while preserving a low temperature coefficient (TC). A double differential pair and a power-supply independent bias jointly enhance the E...

2799 According to a recent worldwide survey, current rates of de novo pacemaker and implantable cardioverter-defibrillator (ICD) implantation are higher than those of previous years at >700 000 and >200 000 per year, respectively. Parallel to the growth in cardiovascular implantable electronic device (CIED) use, technological advances have led to new sources of electromagnetic radiation. Modern...