Electrical Engineering Jobs

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Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
The concept is to create a single PCB computer like: http://www.hardkernel.com/main/products/prdt_info.php?g_code=G143703355573 The difference is that we would like to base our product on top of the Artik10: http://static.artik.io/files/ARTIK-10ProductBrief.pdf Why ? We choose the Artik10 because it's backed by Samsung and contains a security module (we need TPM functionality). Most of the preliminary job will be to interconnect the Artik10 with peripherals such as: - Ethernet - 2xUSB - Serial (UART) - HDMI - DC (Power) - RTC + Battery - GPIO Key factors: - Clean design - Small board dimensions (height, weight, depth) - ESD protection Looking only for designers with proved experience. Advantage to those familiar with manufacturing.
Skills: Electrical engineering PCB Design
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Require design digital logic controlled H bridge supply Voltage 1800V and 20 Amps. Small from factor design essential. Loads are resistive ONLY, supply is from a charged capacitor 100uf/2000V. let me know if you have experience in this field. Apply only if you know how to manage Fets, IGBT or SCR at such high Voltages and know how to manage high side and low side of H bridges with high and low side drivers or other opto drivers.
Skills: Electrical engineering Electronic Design
Fixed-Price - Intermediate ($$) - Est. Budget: $1,000 - Posted
Develop a flexible level sensor that will provide a precise resistance output based on the location of a magnetic field along the length of the sensor (circuit board). This design will not use reed switches. Ig interested, we would like to sign a Non-Disclosure agreement prior to sending product specifications.
Skills: Electrical engineering Mechanical Engineering PCB Design
Hourly - Intermediate ($$) - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Looking for someone well versed in off grid systems. I manage several off grid homes that have: PV Panels, inverter, batteries, backup generator. I need someone who is well versed in both the calculations of running the system and who is familiar (or could be easily) with the schneider equipment. We often have questions and I would want to hire you and keep the contract open for when we need some light consulting. For example, my current question is this. We have 8 batteries, Deka 8L16 model. Where would we set the low battery cut out voltage so that we only draw the batteries down by 10%. How about to draw them down 30%? In that example, you would need to find the deka specs, do the calculation, and give us the answer. We are forever having questions like that with these houses...
Skills: Electrical engineering
Fixed-Price - Intermediate ($$) - Est. Budget: $75 - Posted
Hi there, I need an EXPERT in CONTROL SYSTEMS he has a good experience in these topics ( System modeling , Time response, Stability and steady-state error, Root locus, Controller design by root locus, Controller design by root locus, PID control, Nyquist stability criterion, Frequency response,Controller design by frequency response) To do a practical report please. I want it within 4 days ( by Saturday 28 May 12pm GMT)
Skills: Electrical engineering MATLAB Microcontroller Design
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
We are looking for a highly skilled person who can help us with the completion of the development of an micro inverter. We are a company based in Sweden who has developed a micro inverter for PV panels. Now we need help with the last part to finish the project. We have all necessary documentation and data that will be needed. This job will require both electronic design and some software development, likely C or similar language. Please contact us for more detailed information. **EDIT** This job contains 0% development of server side programming or web interfaces.
Skills: Electrical engineering C C++ Electronic Design
Hourly - Intermediate ($$) - Est. Time: 3 to 6 months, 10-30 hrs/week - Posted
We are looking for an electrical engineer to help design a simple LED lighting display like railway station such as: d-led-grow-light-bar Two different PCB's (Aluminum LED PCB) will need to be designed with different color spectrums. All LED's should be from CREE (UV LED will need to be from Lite-On). PCB A: 3.5W 740nm Far Red 3.08W 385nm UV 3W 465nm Royal Blue 3W 485nm Blue PCB B: 3.5W 740nm Far Red 3.08W 385nm UV 3W 630nm Red 3w 615nm Red-Orange Once awarded we will provide exact detail on total numbers of LED's, ratio, layout, dimensions, etc... The project deliverables include: - PCB Design including power connectors - Electrical Design including LED Driver (ie Meanwell) - Once completed we would like to hand over the documentation package for PCBA to our supplier
Skills: Electrical engineering Electronic Design Electronics
Hourly - Expert ($$$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
You will be making: A custom schematic for a bluetooth speaker I am currently using a PCB from another device to run my prototype for a new product. I need a new PCB designed before I can secure manufacturability for my new product. I need the design of the current PCB changed in several ways, and its schematic made so that I can have the layout and assembly done for me by nearby clients.
Skills: Electrical engineering Electrical Drawing Electronic Design