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A Class-D audio amplifier utilizing a fully adjustable 3-level Pulse Width Modulation (PWM) is presented. The amplifier is fully integrated in a 0.35um CMOS process, and is powered by a 3.3V power supply. The system includes an internal fully adjustable triangle-wave oscillator, which is used to generate the PWM carrier. Delivering an output power of 300mW is a differential bridge (7.5cm pMOS, 3cm
The paper discusses the key enabling mechanisms introduced by Web 2.0 technologies that can support Product Service Systems (PSSs) development teams in increasing the quality of early design decisions. The paper collects success stories and lessons learned from two empirical case studies in the aeronautical supply chain, and from a set of questionnaires forwarded to major automotive manufacturers,
Subud is one of hundreds mystical movements (aliran kebatinan) that increased significantly in post-war Indonesia. Along with other movements like Sumarah and Pangestu, Subud has attracted people from the West and is now spread in about eighty countries. Despite the fact that Subud leaders deny any relation to the Javanese mystical tradition, it is one of the tasks of this study to show that the g
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This paper presents an approach to teaching programming and abstract thinking to young learners using Scala and Kojo. Kojo is an open source IDE for the Scala programming language. The approach is based on Scala APIs for turtle graphics and functional pictures, a process of interactive exploration and discovery, and structured learning material that guides learners. The approach encourages playful
Född i Preußisch Stargard 1883 och avliden i Stockholm 1942 tillhör Saul en av de Sveriges musikaktörer som under första hälften på 1900-talet aktivt kämpade för att förmedla en kontinental musiksyn och att gestalta och utveckla det svenska musik- och framför allt körlivet enligt de nyaste trenderna söderifrån. Artikeln tar upp ett flertal intressanta aspekter om Sauls musikaliska verksamhet i Sve
It has become a necessity to use on-chip inductors in radio frequency integrated circuits. Particularly oscillators need inductors to archive high performance. In LC oscillators the quality factor of the inductor is critical to the phase noise performance, and since the self-resonance frequency of the inductor will limit the operating frequency and tuning range of the oscillator, careful optimizat
Den nya svenska filmen följer de senaste årens utveckling i den svenska filmkulturen. Oerhört mycket har hänt. Aldrig någonsin tidigare har svenskarna tittat så mycket på rörliga bilder. I boken ställs frågor om vithet, brott, främlingskap, sexualitet, funktionshinder och det rämnande folkhemmet i filmer om allt från Sverige under andra världskriget till den nya politiska samtiden i Millennium-tri
