Electrical Engineering Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
We are specifically looking for someone with a background in LED lighting installations, electrical system audits and general experience in the industry. This job is for you to produce documents that provide details on the auditing, installation and implementation process of outdoor lighting systems, specifically street lights, cob lights, parking lot lights, track lights, automotive lights, light towers and grow lights. Upon application, please provide samples of your work and explain your work experience in the LED lighting industry. Thank you for your time.
Skills: Electrical engineering Electronics Mechanical Engineering Technical writing
Fixed-Price - Expert ($$$) - Est. Budget: $50 - Posted
Need to design the gate control circuitry for an Multilevel Modular Clamped Capacitor Converter. The gate circuit will be using HCPL 3120 optocouplers and need to know how many required. The optocouplers will need an input resistance into the device and an output circuit with the use of a capacitor in parallel with a separate power supply for the 3120s and also an output resistance , diode and another resistance so to calculate dead time and assure the MOSFETs charge properly and discharge quickly through the resistor. I would need a calculation of the resistors, diodes and capacitors needed for the circuit. I would also need a schematic of the connections required and how to be connected. Discuss with me for further information of what you need. I will send all the specs of the converter when discussed. Require full and correct operation. Need urgent completion, one day, no time wasters!!!
Skills: Electrical engineering Analog Electronics Digital Electronics Electrical Drawing
Fixed-Price - Intermediate ($$) - Est. Budget: $120 - Posted
PSIM Analysis of Series-Parallel Resonant Converter and Report The project is to design a boost converter circuit and analysis report, with high efficiencies. They need to have reasonably low costs of components for specification given. There should be accurate calculations of component parameters and reasons why the size of components was chosen for the circuit. There should be closed loop current and voltage control design (where necessary, with PI blocks, limiters, filters, comparators, voltage sensors, voltmeters, ammeters etc.) with reasons for block use and analysis on Control design. Please refer to the completion table attached for further clarity of requirements. The circuit should simulate correctly with minimal ripple and smooth outputs. Topologies provided as attachments. Use these specifications, Specification 1: P=1MW; Vin = 20kV; Vout=50kV. 2-5kHZ is an example of the switching frequency that can be used for this converter unless discussed other idea with myself . Design the converters for OPTIMUM efficiency and show calculation overall efficiency with Pin and Pout Values; also design for lowest losses with reason for use of components and how they increase efficiency of reduce losses. I'm trying to do an investigation looking at installed power in the semiconductors, size of passive components, evaluation of losses in semiconductors, losses in magnetic components and overall efficiency (so I need all these results with calculations, equations and reasons for use). Evaluation of losses in semiconductors should be done using the thermal modules in PSIM with an appropriate selection of components and parameters. Evaluation of magnetic losses should also be done! Save SimView figures of Gate Signals, Component Voltages, Input and Output Voltages , Component Currents, processed power against Installed Power and evaluation of losses (including magnetic losses) and provide notes and calculations of losses. Analysis describing the figures. I will need an analysis of each figure to describe it and show operation (discharging, charging, Discontinuous current mode, current mode etc. ) The advantages and disadvantages should be reported and the disadvantages compared to non resonant topologies should be specifically highlighted (costs etc.) Require files to be saved in PSIM 9.0. If you require reference papers for assistance, I can attach them as well. Need completion in 2 days, maximum. and a start as soon as possible. The figures should be saved in the analysis as printed files not screen shots as enlarging will reduce the quality of the image. There should be a psim file for each part of the report for the circuit if possible please. b) circuit_with_control.psimsch file, c) circuit_with_control_and_thermal_modules.psimsch file. No time wasters please!
Skills: Electrical engineering Electrical Drawing Electronic Design Electronics
Fixed-Price - Intermediate ($$) - Est. Budget: $80 - Posted
I would like to hire an Electrical Engineer or control Engineer who has a sound knowledge in control system. In order to complete this lab report, you need to be familiar with MATLAB. All the necessary information regarding the lab report is provided below: You need to write a report including few sections: 1) Introduction 2) Mathematical workout 3)working steps 4)MATLAB code description with image 5)Discussion 6)Conclusion (Briefly) 7)Reference
Skills: Electrical engineering MATLAB
Fixed-Price - Intermediate ($$) - Est. Budget: $35 - Posted
Mechatronics related question mostly are online,i want to change them from online so there is no plagiarism issues. few sample questions and other are in word document Show all work to receive full credit. Numerical answers should be rounded to 3 significant figures and must include proper units. 1). Circle one. 1.1) How many ports does a 5/2 valve have? (Circle one)(2pts): a)5 b)2 c)3 d)7 e)5 or 2 f)need more information to determine the number of ports 1.2) A rigid body is subject to 6 constraints, one of them redundant; therefore, the motion of the rigid body has(2pts): a)6 degrees of freedom b)5 degrees of freedom c)4 degrees of freedom d)3 degrees of freedom e)2 degrees of freedom f)1 degree of freedom g) 0 degrees of freedom
Skills: Electrical engineering Mechanical Engineering Mechatronics
Fixed-Price - Intermediate ($$) - Est. Budget: $350 - Posted
We are working on building IoT prototypes using various hardware and clouds platforms. We are looking for a experienced freelancers to speed up our process. You will work with our technical team with remote access. You may have to work on hardware platform from scratch and connect the hardware to cloud running some application on it. Application won't be too difficult. It can be discussed later. Hardware platforms we have are Raspberry Pi, Intel Edison, Linkit One, FRDM, CC3200. Options for cloud platforms are AWS, Azure, IBM Bluemix, Thingspeak, Sandbox etc. Programming languages we are looking forward are C, Python, Node.JS. You can even suggest platforms of your choice which can be helpful for building industry level applications. Please mention your experience with IoT in the proposal.
  • Number of freelancers needed: 3
Skills: Electrical engineering C Electronics Embedded Systems
Fixed Price Budget - Expert ($$$) - $50 to $100 - Posted
I do need someone to analyze frequencies captured on the ear and recorded something similar to those on the file attached. There are many more hours of recordings captured - this is only an excerpt. Analysis should include - frequency range, source identification and all details you can get. It should be in the form of a report. If successful this could turn to long term project as the company will be in need of such an employee. range is open. please apply only if you are sure you can offer good service 100 % success. I will send the file to the people who will apply. Please send me your email address.
Skills: Electrical engineering
Fixed-Price - Entry Level ($) - 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: Electrical engineering Computer-Aided Design Circuit Design Energy Engineering