ELECTRONICS: MicroPower Direct’s MPM-03S series is a family of single output, 3W switching power supplies. These low-cost modules include a universal ac input, full safety approvals, robust filtering and miniature DIP packaging. Six standard models operate from a universal input of 85 to 264V ac; providing tightly regulated single outputs of 3.3, 5, 9, 12, 15 or 24V dc. Standard features include universal 85 to 264V ac inputs, filtering to EN55022, input/output isolation of 3,000V ac and very low leakage current. All models are protected for over temperature and short-circuit faults. The MPM-03S has a Class II input (IEC61140). This means it can be used without an earth ground connection. The series, which is RoHS compliant, is packaged in an ultra-miniature DIP package. Each model is specified for operation over the wide operating temperature range of -25 to 71C (ambient).
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
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