With new electric-car offerings from Tesla, Nissan and Chevrolet generating considerable buzz, the manufacturers find themselves facing obstacles as they acknowledge that clear answers to questions of how often and where to recharge aren’t yet available. The best solution, the Washington Post’s Joseph B. White contends, would be a consistent, easy-to-understand federal standard … [Read more...]
iPhone Antenna Design Absorbs EM Waves
Some of the reception problems with Apple’s iPhone 4 have been linked to the product’s antenna, which is an unusual design in that it circles the entire perimeter of the device. Phone makers typically try to place the antenna in places the user is less likely to touch in order to make a call. But with iPhone 4, unless you put a insulating cover around the antenna, the design … [Read more...]
The Truth About Cell Phones and Cancer
Christopher Wanjek, LiveScience's Bad Medicine Columnist wrote that Ronald Herberman, director of the University of Pittsburgh Cancer Institute, shocked just about all law-abiding scientists (abiding by laws of physics, that is) with his warning last week to his faculty and staff that cell phones might pose a cancer risk.This is troublesome, Wanjek wrote, because this time a … [Read more...]
Halogen-Free Embedded Capacitance Material
Design engineers in the electronics industry who are seeking ways to improve power integrity and reduce electromagnetic interference while meeting halogen-free requirements now have a new solution to meet their needs. The 3M Electronic Solutions Division now offers halogen-free* versions of its Embedded Capacitance Material. 3M’s ECM is a thin, capacitor laminate, which can be … [Read more...]
Military Frequencies Interfere with Consumer Electronics
Interference from radio transmissions from Navy equipment in coastal neighborhoods of San Diego is suspected of causing problems for people trying to operate wireless devices to unlock cars and open garage doors. While not taking responsibility for the trouble, local Navy officials released a statement acknowledging that some military devices operate on the same frequencies as … [Read more...]
Choosing the Right Chamber for Your Test Requirements
Martin Wiles, Vince Rodriguez, ETS-Lindgren Developments within standards community has led to new chamber validation procedures above 1 GHz and alternative test methods using FARs. INTRODUCTION Anechoic chambers are used today for performing EMC measurements according to a variety of published EMC standards. There are many different fields of application, including … [Read more...]
Consumer Report Warning on Lexus Rollover Continues Toyota Troubles
Toyota suspended sales of its 2010 Lexus GX 460 sport utility vehicle on Tuesday after Consumer Reports magazine warned buyers that the model had a dangerous handling problem that could lead to a rollover and possibly “serious injury or death.” On dozens of other S.U.V.s tested by the magazine, the electronic stability control system of the vehicles detected and quickly stopped … [Read more...]
Drive-by-Wire and Functional Safety Considerations
Drive-by-Wire and Functional Safety Considerations Dr. William Radasky, Metatech Corporation, Goleta, CA Introduction Over the past few months there have been hearings in the U.S. Congress concerning the safety of automobiles, with emphasis on mechanical failures and repairs. On the other hand, there have also been questions raised in general with respect to the rapid … [Read more...]
Soft Termination Capacitors Reduce Cracks Due to Board Bending
Murata Electronics North America recently introduced soft termination capacitors to reduce cracks caused by bending stress. Based on Murata’s leading GCM and GRM series of multi-layered ceramic capacitors (MLCCs), the new GCJ (for automotive applications and AEC-Q200 compliant) and GRJ (for consumer applications) are designed with an advanced conductive polymer layer, which … [Read more...]
ESD Protection Solutions for High Speed Data Ports
Alpha & Omega Semiconductor Inc. has announced a family of ultra low capacitance TVS diode products. The new product series are designed and optimized to provide robust ESD protection for high speed data ports commonly used in consumer and computing electronics products such as LCD TVs, BluRay players, personal computers, and cell phones.Read the data sheet for this … [Read more...]
- « Previous Page
- 1
- …
- 59
- 60
- 61
- 62
- 63
- …
- 68
- Next Page »
