Sökning: "Johan Engstrand"

Hittade 3 uppsatser innehållade orden Johan Engstrand.

  1. 1. Consumer purchasing behavior during the economic uncertainty of 2020-2023: : A study on the drivers influencing Swedish grocery shopping behavior

    Kandidat-uppsats, Jönköping University

    Författare :Johan Engstrand; Emmy Koste; William Berenfors; [2023]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 2. A 3D-printed Fat-IBC-enabled prosthetic arm : Communication protocol and data representation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Johan Engstrand; [2020]
    Nyckelord :prosthetic arm; bionic arm; 3D-printing; intra-body communication; ibc; fat tissue; fat-ibc; arduino; xbee; 802.15.4; cobs; cobs r; packet loss; serial transmission; armprotes; 3D-utskrift; intrakroppslig kommunikation; fettvävnad; paketförlust; seriell överföring;

    Sammanfattning : The aim of this thesis is to optimize the design of the Fat-IBC-based communication of a novel neuroprosthetic system in which a brain-machine interface is used to control a prosthetic arm. Fat-based intra-body communication (Fat-IBC) uses the fat tissue inside the body of the bearer as a transmission medium for low-power microwaves. LÄS MER

  4. 3. Simulation and Construction of a Half-Bridge Class D Audio Amplifier

    Kandidat-uppsats, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Johan Engstrand; Niklas Kavathatzopoulos; Jonathan Nordenholm; [2018]
    Nyckelord :amplifier; class D; half-bridge; simulation; LTspice; KiCad; förstärkare; klass D; halvbrygga;

    Sammanfattning : Usage of class D audio amplifiers has become increasingly widespread in recent years, mainly due to their high efficiency, which can reach almost 100 %. Class D amplifiers can also be compact, making them suitable for mobile applications. In contrast, the most efficient conventional amplifiers such as class B can reach a maximum efficiency of 78. LÄS MER