Electrical engineering Jobs

87 were found based on your criteria

  • Fixed-Price – Est. Budget: $200.00 Posted
    Hi I am looking for someone to research and write a report answering the following questions: 1. What are the UV frequencies best suitable for surface sterilization? Are there differences between frequencies and effectiveness on different pathogens (bacteria, viruses, fungus etc? Here I am expecting a reasoning about different frequencies and their effects approx half page. 2. How much such UV light is needed to effectively disinfect a surface (dm2)? (how to measure?) 3. Can you find UV LEDs on ...
  • Fixed-Price – Est. Budget: $450.00 Posted
    I need an Electrical Design engineer ( with high Autocad drafting skills) to do an electrical design for a residential building for which the layout designs are downloadable from the following link: https://www.dropbox.com/s/ha58org6gb28a39/permis%2041-ach.dwg The electrical design is to include: - Lighting design - Power and load distribution design - Earthing and lightning protection - Low current system Design is to be made according to IEC standards and should include for all the above mentioned systems: - Layout drawings ...
  • Fixed-Price – Est. Budget: $40.00 Posted
    Hi Its basically an assignment in which, load analysis of a 26 Bus bars has to be done using two software's.One software to derive the solutions and the other one to verify them the software's that can be used are: 1. Matlab. 2. PScad. 3.Power Factory. Matlab can be used to verify the solutions and one of the other 2 can be used to derive the solutions initially. The solutions must be derived using either Gauss ...
  • Fixed-Price – Est. Budget: $100.00 Posted
    Looking for some assistance in the design of a Class B power amplifier. This is the final stage in a servo system. The power amplifier drives a motor whose coil resistance is typically less than 2 ohms and around 100 microhenry. The power amplifier is supplied typically with + and - 24V. It works but needs some tuning. So we're looking for someone with circuit simulation experience, and with experience optimizing power amplifier output stages.
  • Fixed-Price – Est. Budget: $50.00 Posted
    Hi, I have a PCB design with mistakes. I need very professional PCB designer that will fix the errors in our PCB. need to change one circuit, and to fix errors in BOM list and to check deeply that the PCB is correct according to the electrical circuit. This job is very very simple and easy for professionals. Please check the circuits. The sources and the job need to be done with Altium. Thanks Dan XU
  • Fixed-Price – Est. Budget: $5.00 Posted
    I'm exploring a new project that will require the development of a passive rfid tag capable of being read over a distance of between 5cm and 100cm by a mobile phone. The tag will be used in clothing and so needs to be water proof / heat resistant and wearable. I have found a tag by Fugitsu which looks ideal but I need the tag to be readable by a mobile phone not an independent tag reader (Fuji tag datasheet ...
  • Hourly – Less than 1 month – Less than 10 hrs/week – Posted
    I am designing a solar powered light consumer product, and would like your expertise to further development. It needs to be able to fully charge during the day by an inbuilt PV panel, and then run on that energy throughout the night. The size should be portable (i.e. fit inside a 150 cm^3 footprint), and the device must output bright light (around 1500 lumen). It should also be networkable through bluetooth and WiFi. The device should have a ...
  • Fixed-Price – Est. Budget: $100.00 Posted
    Hi, I am trying to bring out a project using Sim900 GSM module. I need to send data to server using POST method, and also having trouble with http protocols etc. I need someone experienced on this subject who know about this module to guide me about the problems that I counter. Working code examples with arduino will also be helpfull. Thanks