Showing 1-25 of 524 resultsfor "Index Terms":electromagnetic interference (EMI) immunity
"Index Terms":electromagnetic interference (EMI) immunity
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Improvement of Surge Immunity by Using Transformer-isolation in an Active EMI Filter
2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI)
Year: 2019 | Conference Paper |
Cited by: Papers (4)
Improvement of surge immunity due to transformer-isolation in an active EMI filter (AEF) is investigated. The surge influence on active circuit parts is analyzed by experiments. Maximum peak voltage and pulse duration of the surge transient voltages transferred to active circuit parts of a current-sense current-compensation (CSCC) AEF are measured in the cases with direct capacitive co...Show More
Design of low-voltage CMOS amplifier with high EMI immunity
2014 IEEE International Conference on Electron Devices and Solid-State Circuits
Year: 2014 | Conference Paper |
Cited by: Papers (1)
A low-voltage bulk-driven amplifier with high electromagnetic interference (EMI) immunity is proposed. To improve EMI immunity of the bulk-driven amplifier, a partial positive feedback enhances its equivalent transconductance, an input voltage-drop structure modifies its DC nonlinearity, and a dual input-stage ensures the desired AC feature. Theoretical analysis and simulat...Show More
The purpose of this recommended practice is to provide an ad hoc test method to estimate the electromagnetic immunity of medical devices and help identify interference issues that might exist with critical medical devices as a result of emissions from RF transmitters increasingly used in health-care facilities, particularly by doctors, staff, patients, and visitors. RF transmitters include t...Show More
Numerical evaluation of EMI immunity of hard disk drive with multiple slots
2007 18th International Zurich Symposium on Electromagnetic Compatibility
Year: 2007 | Conference Paper |
The paper presents a simulation study of the electromagnetic far-field radiation from a hard disk drive (HDD) with multiple slots. The modeling is achieved by introducing appropriate compact models using a transmission line matrix (TLM) time-domain method. The slots are designed with different configurations in the hard disk drive, which simulates the physical system. The effect of the slots inter...Show More
This recommended practice establishes appropriate electromagnetic (EM) threat levels, protection methods, monitoring techniques, and test techniques for specific classes of computer equipment. This equipment is expected to be accessible to the public at ranges less than 100 meters, and the loss of operation of the equipment due to intentional electromagnetic interference (IEMI) is expected to caus...Show More
A balanced CMOS OpAmp with high EMI immunity
Boyapati Subrahmanyam;Devarshi Das;Maryam Shojaei Baghini;Jean-Michel Redoute
2014 International Symposium on Electromagnetic Compatibility
Year: 2014 | Conference Paper |
Cited by: Papers (4)
In this paper a balanced CMOS operational amplifier which has higher electromagnetic interference (EMI) immunity compared to a double differential amplifier and standard Miller operational amplifier, has been introduced. The proposed amplifier has better EMI immunity, from 1 MHz - 1 GHz, by keeping specifications such as gain, -3 dB bandwidth, phase margin, power supply rej...Show More
Enhancement of PCB Design for Radiated Immunity Compliance in Analog Signal Measurement
Ankit Virdi;Prafulla Salunkhe;Dhanesh Choudhary;Tanuja Mahadik
2018 15th International Conference on ElectroMagnetic Interference & Compatibility (INCEMIC)
Year: 2018 | Conference Paper |
Cited by: Papers (1)
As Electronic industry is progressing through the decades, electronic products tend to become increasingly complex. One of the major challenges in the industry today is to design products with Electromagnetic Compatibility (EMC) in the given size and cost. In order to ensure a certain product meets global norms related to Electromagnetic Interference (EMI) and EMC there are specific standard...Show More
Immunity Measurement and Modeling of an ADC Embedded in a Microcontroller Using RFIP Technique
This paper presents a comprehensive method for the integrated circuits (ICs) immunity characterization. The resistive RF injection probe (RFIP) method is used to study the immunity of an analog-to-digital converter (ADC) embedded in a microcontroller. The provided set of immunity parameters is then exploited to construct an immunity model of the ADC according to the Integra...Show More
A Two Stage Miller OpAmp with Low Voltage Cascode Current Source with High EMI Immunity
Shivdeep;Sahil Sharma;Subrahmanyam Boyapati;Devarshi Mrinal Das
2023 International Symposium on Electromagnetic Compatibility – EMC Europe
Year: 2023 | Conference Paper |
Electromagnetic Interference (EMI) at the input of an Operational Transconductance Amplifier (OTA) leads to a DC offset voltage at the output. The amount of EMI-induced offset depends on the frequency and amplitude of the interferer signal. Various phenomena are dominant at different frequencies, such as the asymmetric slew rate is responsible for offset induced at frequencies around t...Show More
Bulk-Driven CMOS Amplifier With High EMI Immunity
This paper presents a bulk-driven CMOS amplifier with high immunity to electromagnetic interference (EMI). The approach is based on a bulk-driven input stage of MOSFET, thereby providing a low-voltage realization of a gate-driven stage. The bulk-driven amplifier includes the positive feedback, an input voltage drop, and dual input-stage symmetrical topology to improve the equivalent tr...Show More
Characterizing the Electromagnetic Immunity of Operational Amplifiers based on EMIRR and DPI
2023 International Symposium on Electromagnetic Compatibility – EMC Europe
Year: 2023 | Conference Paper |
Cited by: Papers (1)
In order to develop robust and reliable electronic sensor systems that function properly even in environments with high electromagnetic pollution, it is important to use so-called EMI hardened operational amplifiers. This paper examines the conducted electromagnetic immunity of such operational amplifiers. Using examples of electromagnetic interference rejection ration (EMIRR) measurem...Show More
A robust CMOS miller OpAmp with high EMI-immunity
Subrahmanyam Boyapati;Jean-Michel Redouté;Maryam Shojaei Baghini
2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE
Year: 2017 | Conference Paper |
Cited by: Papers (6)
This paper presents a robust CMOS Miller operational amplifier (OpAmp) that has high immunity to electro-magnetic interference (EMI). The proposed robust CMOS Miller operational amplifier uses the modified replica Miller OpAmp concept with the source-buffered Miller OpAmp with source degeneration resistance in order to achieve high EMI immunity across a wide range of freque...Show More
Modeling and Design of A Compact Low Power Folded Cascode OpAmp With High EMI Immunity
Raviteja Kammari;Jagapathi Gundla;Subrahmanyam Boyapati;Vijaya Sankara Rao Pasupureddi
In this letter, the modeling and design of a low-power, compact folded cascode operational amplifier with high immunity to electromagnetic interference (EMI) is presented. The insights derived from the modeling of parameters $V_{gsi}$, $V_{sbi}$, and $V_{dsi}$ of the first-stage folded cascode OpAmp with channel length modulation are employed in designing the proposed compact folded ca...Show More
In this paper, we investigate the use of frequency modulated signals for immunity testing of integrated circuits. The aim is to predict their electromagnetic susceptibility based on realistic noise signals. These signals reflect the complexity and diversity of real electromagnetic disturbances. The approach uses both narrowband and broadband modulation signals during testing as an efficient ...Show More
An EMI-Immune PAM-4 Transmitter With Input Level Shifter in 130-nm BiCMOS Technology
Mohit Singh Choudhary;Sandeep Goyal;Naga Surya Anjan Kumar Pudi;Jean-Michel Redoute;Maryam Shojaei Baghini
This work presents a design of an electromagnetic interference (EMI)-immune pulse amplitude modulation-4 (PAM-4) transmitter. The traditional PAM-4 transmitters are prone to failing in the presence of EMI, which is experimentally verified. The proposed PAM-4 shows superior performance over the traditional PAM-4 transmitter, in the presence of EMI, by using an Input Level Shifter ...Show More
A Methodology to Emulate the Effect of EMI in Circuit Simulators for Wireline Communication Channel
Mohit Singh Choudhary;Naga Surya Anjan Kumar Pudi;Jean-Michel Redouté;Maryam Shojaei Baghini
This letter presents a methodology to model the effect of electromagnetic interference (EMI) on the wireline communication channels. The proposed simulation methodology incorporates the effect of EMI on the circuit during the design phase in EMI-sensitive applications. It allows simple and faster EMI simulations at the SPICE level which minimizes the post-fabrication failur...Show More
An instrumentation amplifier input circuit with a high immunity to EMI
2008 International Symposium on Electromagnetic Compatibility - EMC Europe
Year: 2008 | Conference Paper |
Cited by: Papers (6)
This paper presents an instrumentation amplifier input circuit exhibiting a high degree of immunity against conducted common-mode electromagnetic interferences (EMI) which are injected into its inputs. The proposed input circuit achieves a high common-mode EMI rejection by minimizing the impact of mismatch. A case study illustrates the theoretical analyses, and evaluates the supe...Show More
Comparing Simulated Impact of Single Frequency and Multitone EMI for an Integrated Circuit
Lokesh Devaraj;Qazi Mashaal Khan;Alastair R. Ruddle;Alistair P. Duffy
2021 13th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)
Year: 2022 | Conference Paper |
Cited by: Papers (2)
The electromagnetic immunity characteristics for integrated circuits are currently verified using tests involving single-frequency continuous wave disturbances. In real operational environments, however, systems may be exposed to simultaneous interference sources at multiple frequencies. Simulation results obtained for the electromagnetic susceptibility of a simple voltage-controlled oscilla...Show More
Electromagnetic Immunity of the Overtemperature Protection of Smart Power High Side Switches
2024 International Symposium on Electromagnetic Compatibility – EMC Europe
Year: 2024 | Conference Paper |
Cited by: Papers (1)
In this study, we investigate how combined effects of overtemperature and electromagnetic interference (EMI) impact automotive smart power high-side switches. We focus on the overtemperature protection function and evaluate its electromagnetic immunity using both measurements and simulations. We modify the direct power injection (DPI) characterization method by adding a heating element...Show More
Comprehensive Study of EMI Effects on Wireline Transceiver Systems: A review of silicon-proven techniques
Mohit Singh Choudhary;Jean Michel Redoute;Maryam Shojaei Baghini
2024 14th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)
Year: 2024 | Conference Paper |
This research paper provides an extensive examination of electromagnetic interference (EMI) in wireline transceiver systems. Wireline transceiver circuits are particularly susceptible to undesired electromagnetic waves in their environment. The paper delves into a mathematical approach for incorporating EMI into circuit simulation tools. Additionally, it explores the impact of EMI::...Show More
Effects of Ionizing Radiation on the EMI-Induced Offset Voltage of Operational Amplifiers
Nikolaus Czepl;Dominik Zupan;Alicja Michalowska-Forsyth;Bernd Deutschmann
2024 14th International Workshop on the Electromagnetic Compatibility of Integrated Circuits (EMC Compo)
Year: 2024 | Conference Paper |
Cited by: Papers (1)
In this work, we investigate the impact of ionising radiation on the robustness towards electromagnetic interference (EMI) of operational amplifiers (OpAmps). Therefore we irradiate two OpAmps, one including a standard differential input stage structure, the other OpAmp featuring a second cross-coupled double differential input pair added to the standard input stage structure. We perform mea...Show More
A Generic EMI-Immune Technique for Differential Amplifiers With Single-Ended Output
Anjan Kumar Pudi N.S.;Jean-Michel Redouté;Maryam Shojaei Baghini
This paper presents a unique methodology to calculate the filtering capacitances of the OpAmp already reported in the literature. The methodology aims to show that there is an optimal solution that can be used to increase the electromagnetic interference (EMI) immunity of any OpAmp for a wide range of frequencies. By using this proposed methodology, an OpAmp structure that reduces the ...Show More
Effects of an External Multi-Harmonic EMI Excitation on the Transmission Bit Error Rates of a Redundant Channel Under Plane Wave Illumination
Hassan Tirmizi;Jonas Lannoo;Dries Vanoost;Guy A. E. Vandenbosch;Davy Pissoort
2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE
Year: 2020 | Conference Paper |
Cited by: Papers (3)
In this paper, the effects of an external electromagnetic excitation comprising of various harmonics on a redundant communication channel are analysed and studied in detail. The geometry under study is subjected to strong incident plane waves with random angles of incidence and polarizations. The effects of a multi-harmonic Electromagnetic Interference (EMI) on the functional transmission si...Show More
Very fast methodology for the simulation of CMOS combinatorial circuits including noise
2008 International Symposium on Electromagnetic Compatibility - EMC Europe
Year: 2008 | Conference Paper |
Cited by: Papers (2)
The noise immunity of digital CMOS designs is considered as one of the reasons for its huge success. However, low power design has become necessary to cope with the power demand and shrinking device sizes. At the same time, the electromagnetic compatibility requirements have become more and more stringent, with the result that Electromagnetic Interference (EMI) can be considered as a s...Show More
Kuijk Bandgap Voltage Reference With High Immunity to EMI
This brief evaluates the effect of conducted electromagnetic interference (EMI) that is injected in the power supply of a classic Kuijk bandgap reference voltage circuit. Two modified Kuijk bandgap topologies with high immunity to EMI are introduced and compared to the original structure. Measurements of a test IC confirm the theoretical analyses.Show More
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