Circuit Design Jobs

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Fixed-Price - Entry Level ($) - Est. Budget: $150 - Posted
This will be 2-3 days project involving entry level power engineering project, training problems will be given, and you will be given on the project on May 10, 2016 and have 2-3 days to finish the task. Project will include digital and electrical relays, motor protection, bus fault, coordinating Time dial curve, and over current analysis. All equivalent references and materials will be provided, Please make sure you can finish within project dead line. Project will be fairly simple, please apply if you are interested.
Skills: Circuit Design Computer-Aided Design Electrical engineering Energy Engineering
Fixed-Price - Intermediate ($$) - Est. Budget: $300 - Posted
Need to have circuit designs implemented into 84 pin Atmega 1508AS CPLD design. I would supply the circuits thats need to be implemented into the gate array and an image of the pinout assignments of where the circuit connections map to. This work was previously done on a 64 pin 1504AS in VHDL, however the coder didn't supply the source JEDEC files in PLD format but rather VHDL and we are unable to use those files to modify and transfer the code to the larger 1508AS. Coder has since stopped communicating and we now paid for a code which we can't use in a larger array chip. Would need the project redone and files supplied in JEDEC files with all Sources so that we can then have code that can be modified and transferred if ever needed in the future.
Skills: Circuit Design Embedded Systems Field-Programmable Gate Array (FPGA)
Fixed-Price - Intermediate ($$) - Est. Budget: $450 - Posted
Looking for experienced Embedded Software Engineer to make portable biometric device . Must be experienced in biometric devices , Embedded coding and pcb fabrication. Please note we are creating a portable biometric device which will not exceed 5X3cm size on 4 layer pcb. We have specification available for applicants to review upon request.
Skills: Circuit Design Electronics Embedded Systems Hardware Prototyping
Fixed Price Budget - Expert ($$$) - $200 to $300 - Posted
I need to efficiently drive a very small (< 5W) DC motor with power from a 240 Vac source. The nature of the 240 AC source is such that it will most likely be current limited to <= 100 mA. I have used the full-wave rectified output from the 240 Vac source to power very small loads (e.g., 65 - 95 Vac Ne lamps, which draw ~ 300 uAmps upon breakdown), and have good reason to suspect that no circuit will be able to draw more than 100 mA from the 240 Vac source. The Phase I goal is to design and deliver an AC - DC motor drive circuit that a) can be simulated with software, b) built here, and c) and quickly tested here. It is very likely that I will provide feedback to the designer (data, measurements, etc.) in order to iterate, or tailor, the circuit to improve its performance (delivered DC power, efficiency, and loss); this will be Phase II. The attached file is an example of a circuit that I found searching on the web, but I'm not an EE - I've simply included it in case it is of any value....
Skills: Circuit Design Analog Electronics Electrical engineering Electronic Design
Fixed Price Budget - Expert ($$$) - $2,000 to $3,000 - Posted
This design is a smart electrical plug of 6 layers PCB and have the following components: Cortex M4, BLE for meshing, 3G module, GPS, power circuit on board to convert 110/220V to 5V. Detect the current consumption on the electrical outlet. The task including making a 4 layers EVK board for firmware development. Components library will be provided.
Skills: Circuit Design Electrical engineering Embedded Systems PCB Design
Fixed-Price - Intermediate ($$) - Est. Budget: $1,000 - Posted
I wish to create a custom board which I will have manufactured which will do the following. 1) Bluetooth 2) Wifi 3) Camera 4) Amplifier and 3 watt Speaker I wish to put these capabilities in to an item. I need the main board to step down from an an incoming 110 power source and I need the board to be no more than 1 inch wide by 2 inches long. I basically want a board which will accomplish the following. Hook up to the bluetooth of a cell phone (iphone or android) and stream music to the speaker. I need the wifi to be able to remotely turn off the item through an app that a programmer will design I need the camera to be able to take pictures and send them through wifi or bluetooth (the app will handle those as well).
Skills: Circuit Design Electrical Drawing Electronic Design Electronics
Fixed-Price - Entry Level ($) - Est. Budget: $50 - Posted
I am looking for someone who would modify the schematics and PCB layout in the following reference design . The idea is to add external EEPROM/flash memory to the MCU, so you need to update the provided Altium schematics and PCB layout. You should be careful to leave some pins on the part in a defined state so the memory stays enabled and ready to communicate. You must guarantee that the solution will work for sure, so MCU will be able to communicate via SPI with external memory. I am opened for suggestions about which memory to choose, but I believe that S25FL256SAGNFI001 or N25Q256A13EF840E should be a good choice.
Skills: Circuit Design Electronic Design Electronics PCB Design