Results 181 to 190 of about 436 (206)

Clock dithering for electromagnetic compliance using spread spectrum phase modulation

1999 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC. First Edition (Cat. No.99CH36278), 2003
As more electronic systems operate at higher frequencies and bandwidths, they tend to emit more electromagnetic interference (EMI). Due to lack of shielding, portable systems such as notebook computers have come under increasing pressure to comply with strict EMI emission regulations, such as FCC and CISPR.
null Yongsam Moon, null Deog-Kyoon Jeong, null Gyudong Kim   +2 more
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Modeling of an electromagnetically actuated spindle system considering bidirectional bearing compliance

SPIE Proceedings, 2005
An active spindle system with an Electro-Magnetic Actuator (EMA) is developed for micromachining. The process of developing controllers for this mechatronic system requires reasonable models that expose the important dynamic effects without being excessively complicated.
Su Zhao, Tae-hwa Kim, Wan-soo Kim, Sun-kyu Lee   +3 more
openaire   +1 more source

Electronic Circuit Design for Electromagnetic Compliance through Problem-Based Learning

i-manager's Journal on Circuits and Systems, 2014
Recent regulations have demanded that electronics manufacturing companies control emissions from their products and the susceptibility of their products for Emissions from other products. In addition, unexpected product failure and the ever-present demands of technology are also forcing the electronics industry to face the need to maintain Electrical ...
Gisli Thorsteinsson, Thomas Page
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Low Cost Development Strategy for Pre-Compliance Electromagnetic Compatibility (EMC) Tests with a Transverse Electromagnetic (TEM) Cell

SAE Technical Paper Series, 2012
<div class="section abstract"><div class="htmlview paragraph">During development of electronic products, several measurements are performed to ensure the electromagnetic disturbances are in such levels permitted by costumer requirements. Normally these tests are performed in certified laboratories.
Rodrigo Barbosa Bronzeri, Ayres P. Andrade Filho, Edson Nascimento, Joao L. de C. Meira   +3 more
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Testing for compliance under absorption-based electromagnetic exposure standards

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1988
Early guidelines and regulations concerning the exposure of personnel to radio frequency (RF) and microwave radiation were based on field intensity (or power density) limits. During the 1970s, however, specific absorption rate (SAR) was consistently shown to be a better index for describing RF and microwave bioeffects, and SAR has become the basis for ...
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Electromagnetic radiation compliance under the use of green cell breathing and hybrid network approaches in LTE

2013 IEEE 24th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC Workshops), 2013
The purpose of this paper is to study the effects on electromagnetic field levels of the green cell breathing technique in mobile networks. Although a great number of papers dedicated to QoS, radio issues and energy savings of the cell breathing algorithms have already been proposed, to the best of our knowledge, none has analyzed the effect on ...
Suarez Rivera, Luis Alberto, Nuaymi, Loutfi, Person, Christian, Bonnin, Jean-Marie   +3 more
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Lithium Ion Cell/Batteries Electromagnetic Field Reduction in Phones for Hearing Aids Compliance

ECS Meeting Abstracts, 2016
The Hearing Aid Compatibility Act of 1988 (HAC Act) requires that the Federal Communications Commission (FCC) ensure that telephones sold/used in the US and its territories are hearing aid compatible. “T-HAC” (Tele-coil Hearing Aid Compatibility) requirements are to ensure that inductive (magnetic) coupling from cell phone does not interfere with the
Hossein Maleki, Jason N Howard, Jerry A Hallmark   +2 more
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Assessing The Need To Introduce Electromagnetic Compliance And Interference In Engineering Technology Programs

1999 Annual Conference Proceedings
Comment: 6 ...
Albert Lozano-Nieto, Willie Ofosu
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FEATURES OF TESTING OF RADIO NETWORK NODES 5G FOR COMPLIANCE WITH THE STANDARDS OF INTERSYSTEM ELECTROMAGNETIC COMPATIBILITY

Электросвязь, 2020
Рассматривается проблема проведения измерений с целью обеспечения электромагнитной совместимости (ЭМС) сетей 5G NR. Анализируются принятая последовательность внедрения новой технологии радиосвязи, а также специфика предусмотренного для нее частотного плана и ее физического уровня, которые определяют важнейшие особенности измерений в обеспечение ...
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RF Transmitter Design for Compliance with Human Electromagnetic Exposure Standards

1998
This paper deals with the general guidelines for evaluating compliance of RF transmitter facilities with human exposure standards. Electromagnetic field prediction methods are given, as well as the methods for compliance improvement.
Modlic, Borivoj, Šarolić, Antonio
openaire   +1 more source