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Electrical Engineering Jobs

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Fixed-Price - Est. Budget: $ 15 Posted
Hello, Please visit these 2 URLs. 1) http://www.instructables.com/id/ARDUINO-ENERGY-METER/ 2) http://www.homemade-circuits.com/2013/03/simple-dc-ups-circuit-for-modemrouter.html Your job is to mix these 2 circuits. Changes you have to make: For link 1: use arduino nano instead of arduino uno. I dont want to use ethernet shield. All the values have to be put in csv file and sent through usb port to computer. For link 2: You need to optimize this circuit to 12V/5amp DC from solar panel input(controller will be present). Now the arduino nano present in link 1 have to measure the voltage,amp and wh for link 2 circuit: i) electricity used to charge the battery ii) electricity supply in case of power failure from mains (No solar input) iii) electricity supply directly to modem (from solar controller to modem) The link 1 meter should send the values of these 3 cases in every 1 sec. You need to send me all the required parts (in detail with the part number), arduino...

Hourly - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
I have embarked on a robotic TIG welding project, and I need help to develop a programmable power supply for the machine. I am no electrical engineer, but believe that I need a high-frequency IGBT-based inverter capable of approximating the performance of the Miller Maxstar 280 or Lincoln Electric Invertec V270-TP power supplies: - Input voltage: 415 V - Input: 20 A - Phase: 3 - Output mode: CC - Output range: 5 – 270 A - Output duty cycle: 100% at 170 A - High frequency arc start It is imperative that the power supply must be able to respond to commands from the welding machine to control the output current in the same manner as possible with either the Maxstar or Invertec units. That is, it must be capable of producing a current with a controllable ‘upstroke’, ‘pulse’, and ‘downstroke’. As I said; I do not come from an electrical background and require guidance on how to specify and design this power supply to bring my project into fruition. At this stage I am essentially...

Hourly - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
I would like best suggestions on how to "tap into" and read the magnetic flux transitions stored in 35-year-old QIC tapes. I've started with period-correct and fully-functioning reading hardware: The Wangtek 5099. The goal will be to create a modern interface device that connects to the Wangtek 5099, and functions much like David Gesswein's MFM Emulator, the Kryoflux, and the SuperCard Pro do for hard disks and floppy disks of the same time period. All of these modern devices will read the raw magnetic flux transitions from the magnetic media. Schematics and detailed pictures of the circuit boards for the Wangtek 5099 can be found on this page: http://bit.ly/1D8KfrM For reference on the existing modern devices I list above for comparison: MFM Emulator = http://www.pdp8online.com/mfm/mfm.shtml Kryoflux = http://www.kryoflux.com/ SuperCard Pro = http://www.cbmstuff.com/proddetail.php?prod=SCP If you are interested in this challenging opportunity, please make your bid....

Fixed-Price - Est. Budget: $ 300 Posted
I am looking for some experienced freelancers for Electrical Panel SLD and schematic diagram, There will have about 30 pages in each projects including SLD, Incoming and and outgoing CB control circuit and some motor Y-D, DOL starter wiring diagram. It could be either Autocad electrical or Eplan. Looks details in http://edesigntek.byethost4.com

Hourly - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I have a machine which its number of usage is limited by a chip DS2432. Once it reaches a certain number of usage, it's locked by this IC chip. I need someone to make me a device that can reset/ unlock this chip so I can use my machine without any restriction. I need a device like the one in this video. https://www.youtube.com/watch?v=FriTy770Ep8 Thx, Terry

Fixed-Price - Est. Budget: $ 500 Posted
Hi, We are looking for an experienced electronic engineer with experience in the medical electronics field to help us develop an EEG/ECG/EKG add on board for popular micro-computers. We also have future projects for the right engineer. Please only apply if you have experience with medical device design. Thanks

Hourly - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Are you an engineer or academic who's very familiar with EMC (electromagnetic compatibility) design and testing? Have you solved many EMC issues and come to learn the hard way about what works and what doesn't? I'm also looking for support staff who are competent electronic design engineers, skilled in researching application notes and textbooks. Support staff will help the EMC experts to gather and collate information into a concise resource. I'm recruiting a global team to help to create a course on design for EMI compliance and if you're an EMC 'expert' then I want to hear from you! Even if you haven't created any training course/seminar material before, I still want to hear from you. Creating content will involve collating and summarizing subjects from a combination of textbooks, app notes and your own experience. I've mapped out the modules and need help creating the content for each module. You'll be matched up with the modules that suit your experience the best....

Fixed-Price - Est. Budget: $ 2,000 Posted
You have to make Bluetooth Smart Card Reader, PCB scheme OR device itself. Smart Card Reader MUST communicate by BLUETOOTH. Reader will serve transaction for game centre. Preferred microcontroller with smart card interface and bluetooth chip. Than simpler than better. Please bid if you have some experience with it.