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    Ground Penetrating Radar 6 ngày left
    ĐÃ XÁC THỰC

    build Ground Penetrating Radar

    $26 (Avg Bid)
    $26 Giá đặt trung bình
    1 lượt đặt giá

    First iteration prototypes of a multi-channel Audio mixer with Bluetooth needs redesign/ improvements for production. Schematics in Orcad and PCB layout in “boardmaker” (DOS). You would be required to redo circuit redesign and relayout. Reduce 3 boards to 2 , improve performance, reduce cost, and include production requirements for volume manufacture and test.

    $2995 (Avg Bid)
    $2995 Giá đặt trung bình
    21 lượt đặt giá

    We are looking for an electronic expert able to retrieve the Bill of Material, Gerber files and Electrical diagram from simple 1 layer PCBs for a total of 3 small boards of a microphone circuit. audio engineers are welcome, but also anybody able to master electronic circuits and PCB manufacturing.

    $201 (Avg Bid)
    $201 Giá đặt trung bình
    35 lượt đặt giá

    We are looking to create a "battery/phone hand warmer" protective phone case for smartphones. Ideally this protective cover will be made of a durable, heat resistant, and waterproof material. As shown on the attached file, an option is to have the cover use expandable bands that can stretch across 4" - 7" phone screens (not impacting the camera lens). We are also open to engine...

    $2204 (Avg Bid)
    $2204 Giá đặt trung bình
    13 lượt đặt giá
    Power DC-DC converter design 13 giờ left
    ĐÃ XÁC THỰC

    So the the project is to design power section and feedback section of a dc-dc converter with two versions. one is high power (~5.1kW) and low power (~1.36kW). The input is nominal 1 phase ac that will be converted to DC and will get roughly 325VDC keeping maximum possible tolerance. outputs are: 255 Volts DC @20 Amperes (5.1kW) 68 Volts DC @20 Amperes (1.36kW) The design has to be Microcontrolle...

    $177 (Avg Bid)
    $177 Giá đặt trung bình
    14 lượt đặt giá

    For the project:: it has to be simulated in multisim. Only to do the requirements for section 500 only. And calculations have to be detailed as well if you can write and explain each part of what you did in a word document in detail. Also commenting in the simulations for multisim. I am also going to attach the instructions it shouldn’t be too difficult to complete

    $207 (Avg Bid)
    $207 Giá đặt trung bình
    5 lượt đặt giá