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Circuit Design Jobs

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Fixed-Price - Est. Budget: $ 2,500 Posted
We need an electrical engineer to: 1) design a blue print; and 2) build an environmental monitor built to our specifications. It will have a micro controller, a wireless emitter, an IMU, temperature/humidity sensor, a barometric sensor and a GPS. We need the environmental monitor to be put together in an attractive outer shell, so this is more than just soldering the components to a mother board. We want an elegant final product in line with some concept drawing we will provide you with.
Fixed-Price - Est. Budget: $ 100 Posted
We are working on a prop taxi meter. We'd ideally be looking for a consultant and fabricator for a LED board that could work for our 9/9-9/12 shoot. As we understand, our prop would be a x7 digit LED (7 segment) panel which can read 99,999.99. We would be responsible for the fabrication of the housing for the electronics/technology involved. In addition to reading a 7 digit number, we would also like to: 1. Turn LED digits individually on and off (have the possibility of LED digits illuminated or dark at the same time) 2. Set any LED to any digit at any time 3. increase the fare on meter incrementally higher from custom set number (just like a real taxi-is this possible?) 4. We would like to keep our LED digits around the following dimensions- 1.125" x .5" We were curious how to approach these different functions and behaviors as well as which supplies would be needed? here are some examples of what we thought might work? https://www.sparkfun.com/products/12794 https://www.sparkfun.com/products/12794 https://www.sparkfun.com/products/11405 https://www.sparkfun.com/products/8546
Fixed-Price - Est. Budget: $ 250 Posted
You will develop the schematics (Gerber Files, BOM, and the Eagle Files) for a PCB for a component device. It is a singular function device with one chip. The main board, which it will need to fit into, and other reference component devices are all open hardware + open software. I will provide links to all of those files. You can use those existing diagrams and specifications to model this piece. The chip you are designing for has complete documentation as well, which I will provide. So, you will take existing schematics for existing PCB components as a starting guide, look at the specifications for the chip ( I will provide all the documentation), and you will design the component piece that includes that chip, and deliver the schematics files. If you have experience designing printed circuit boards (PCBs) this should not take you long.
Fixed-Price - Est. Budget: $ 100 Posted
Dear friends, Desigining and simulation (in matlab simulink) of solar power pumping system including PV panels, DC to DC converter, motor selection/ desiginig, MPTT controller etc. Our water requirement is 1740 gal/day, Pv panels should be designed for Somalia (Afgoa town: Latitude 2.0333° N and Longitude 45.3500°E). Type of motor is BLDC (Brushless DC Motor) or Induction motor 1. Complete report about the Designing and calculation of parameters of PV Panels, size of panels with calculation MPPT Controller, DC-DC Convertor, BLDC Motor. 2. Complete description about the behavior of graphs e. g. (i) At the output of PV Panels (ii) At the output of MPPT (iii) At the output of DC-DC Convertor (iv) BLDC Motor outputs like current, speed, voltage, power etc etc Best regards, Hashim Abdullahi Abdi
Fixed-Price - Est. Budget: $ 2,500 Posted
Car dashcams are increasingly popular and most also come with a parking mode. However most do not come with a good parking mode or battery backup. Further they are not specifically designed for particular cars. Goal is to design a dashvue product 1. Easily installable and with working parking mode 2. Central system that can act as battery/storage/control 3. Remote access and programmable Some products to look at are Blackvue, CelllinkB.
Fixed-Price - Est. Budget: $ 250 Posted
Project objetive is to package an LCD display module, 2 LED's, on/off switch, 2xAA batteries, battery terminals, and wiring into the constraints of an existing plastic prototype housing with removeable battery cover and make them fully operational for field testing. PCB design and IC programing for LCD module already completed. Also, looking for guidance on how to improve and industrialize for production. Freelancer must be located in Michigan in order to complete this project.
Fixed-Price - Est. Budget: $ 100 Posted
Design three types of universal LED bulb driver: 1.) Using minimal component to keep cost down (See "01.jpg" and "02.jpg" attachment ) 2.) Using integrated circuits for higher brighter/Life of LEDs(But cost must be low) 3.) Using some high end technology to keep Quality and life longer(You can also add extra features like light sensing technology and make it energy efficient) Input: 90-260v AC Output: Volts: Universal Amps: Configurable just by replacing transistors or any single component(No need to change design) Note: I do not want any current leakage/wastage (or as minimal as possible)
Fixed-Price - Est. Budget: $ 244 Posted
my project consists of 2 parts. 1.)the calculation and sizes of the laminations(noss v470) as well as the windings for 3 phase 220v 4 core 20kva alternator. 2.)i need a circuit designed for the alternator that automatically add an adjustable load the main load. the circuit must rectify the alternator winding and combine the to form a 240v single phase output. the out must the be inverted to 50 Hz .whether the phases must be combined before or after the frequency conversation i don't know.after this the 240v 50Hz goes to the load. from the load it must the come back to an artificial load. the size of the artificial load will change according to the output. the artificial load will always be the generated power being produced by the alternator at that time minus the main load at that time plus half of the resultant . for example if the generator is producing 6kw and the load is 2.2 the the resultant is 3.8kw. the artificial load must now be 3.8kw multiplied by 1.5. this only applies...
Fixed-Price - Est. Budget: $ {{ job.amount.amount | number:0 }} Open to Suggestion Hourly - Est. Time: {{ [job.duration, job.engagement].join(', ') }} - Posted
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