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Electronics Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $200 - Posted
I have autocad file matching and drawings for a commercial space. I need to confirm that the LED spot lights and LED linears being installed are able to be put on one only 2 circuits. Can the LED spot lights and LED linear lights voltage load on edit image 2875 be handled by 2 circuits and 4 switches. They are; AC120V 8W led spot lights and 24Vdc linear lighting 40feet are 2.5W Here is link to specs of linear lighting http://www.purelighting.com/products/tl.5-2wdc.php If the load can be handled I need the file that I have to be edited to reflect the way the work has been done in regard to drawings 2876 I have the panel schedule, JPGS of the drawings, and auto cad file matching 2875. The main issue here is the electrical inspector wants the correct drawing showing circuit works(see attached IMG_2889). So I have to do a revision because the approved city plans are not what is actually done in the location. Approved city plans have: Time clock 5 circuits due to circuits going to J boxes throughout. additional light outlets and emergency lighting. The way the work was actually done: 2 circuits for LED spot lights and LED linear lighting. one for front half of unit one for rear half of unit. and switches controlling separately half/half of spot lights and half/half of led lighting
Skills: Electronics AutoCAD Autodesk Autocad Civil3D Computer-Aided Design
Hourly - Intermediate ($$) - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
To be part of the team, individual needs to have experiences in the following subjects: - Computer science (Artificial Intelligence, Computational linguistics) - Engineering (Acoustical, Automotive, Chemical, Control, Electrical, Electronics, Mechanical, Mechatronics, Microelectronics, Nano, Optical, Software) - Psychology (Cognitive, Behavioral) - Physics (Dynamics, Kinematics) The project will be divided to several teams for different components, and should be familiar with terms such as: - Muscle group (Creating 850 muscles equivalent to a human body; 42 facial muscles equivalent to a human face) - Artificial / Synthetic, Sensors Skin (measure, stretches, senses, feel); Associated humidity sensores, eletroresistive heater and stretchable multi-electrode arrays, strain, pressure and temperature sensores - Exoskeletons - Hybrid fuel cells (Rechargeable Hydrogen Fuel Cell, Polymer Exchange Membrane Fuel Cells) Additional consideration on the safefy, lifetime cycle, weight, heat dissipation, form factor and cost Flexible arm & hand movements (At least 24 joints with 20 degrees of movement freedom for hand construction) - Zero Movement Point (ZMP), Dynamic-balancing and Passive-dynamics - Environmental interaction and navigation (extremely intuitive interface allow communication through speech, gesture and facial expression); Speech recognition; Synthetic voices; Facial expression; Social intelligence Information within the technical, design and blueprint document must be a working solution, and will be verify against subject matter expert from Stamford University, Bao Research Group, C3 Nano, MIT and etc.
  • Number of freelancers needed: 30
Skills: Electronics 3D Modeling Artificial Intelligence Chemical Engineering
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Dear freelancer , what i want that some one will start with me online classes how I can start record via pic18 or pic24 over MIkroc , in wav format and how to manage to get minimum current consumption, what the trick we can use , and how we can change sample rate no need for pcb design , all work will be done over development kit such as easy pic 7 from mikroe also no need for microphone preamp , I will normal line from you PC for now regards to you all
Skills: Electronics C Electrical engineering PCB Design
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, 30+ hrs/week - Posted
Similar to a smart-watch, I would like to have a circuit board designed which would include a biometric chip (heart rate, body temperature, etc), a pedometer (accelerometer or something similar), and a Bluetooth low energy chip all within the size of a circle 1.5 inches wide. I would also like the height of this electrical board to not be taller than 0.25 inches. If it needs to be slightly taller to support the chips then that's fine, too. I need this to work for 20 hours, so energy consumption is very important. Essentially this project is done if we've found the proper biometric chip, BLE chip, microprocessor, pedometer (or accelerometer), extremely thin battery, and battery charging mechanism, so that I can have the printed circuit board created. Requirements: 1 - Must be as small as possible, and have a circular form factor 2 - Must be able to communicate over BLE with a smartphone (app is not part of this project) 3 - Must last 20 hours. 4 - Must work when pressed against a person's arm, just like a smartwatch (apple watch, moto 360, etc). Thank you!
Skills: Electronic Design Biotechnology Bluetooth Electrical engineering
Fixed-Price - Entry Level ($) - Est. Budget: $100 - Posted
Write technical articles related to electrical and electronics engineering course/subjects. It may include tutorials, innovations, DIY content, latest gadgets, theory, analysis, deisgn and so on. ... It may include tutorials, innovations, DIY content, latest gadgets, theory, analysis, deisgn and so on. You must be familiar with electrical or electronics engineering subjects to deliver a good article.
Skills: Analog Electronics Article Writing Blog Writing Circuit Design
Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
Hello: I am working on wireless electricity transfer. Attached is a circuit for a conventional induction heater. Basically what this circuit does is, it takes the voltage values from both ends of the Work Coil and compares these voltage values and then starts charging the 330n capacitor at a certain time that the voltage load on the power mosfets (FGA20N120FTD) are almost zero when the gates of the mosfets are open. This protects the mosfets from over voltage and overheating. The only problem with this circuit is that the on time of the [V(n002)actual] is too long for my system. I would like to reduce this on time to a value similar to [V(n002) modified] as shown in the simulation-2.pdf diagram. I was thinking about adding an off delay using a combination of a small value capacitor and a transistor but could not figure it out. I would like someone to modify this circuit for me. I have the Ltspice model of this circuit if it is needed. I also would like to keep this circuit as simple as possible.
Skills: Electronics Circuit Design Electrical engineering
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