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Electronic Workbench Upwork freelancers typically receive a client rating of 3.95.

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Last updated: July 1, 2015

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  1. Aleksandar Savic

    Aleksandar Savic

    Electrical maintenance and project engineer

    Serbia - Last active: 5 months ago - Tests: 1 - Portfolio: 4

    Nobody knows enough to think that he does not need learning! Electrical project designing. Drawing electrical schematic. Developing Siemens Step 7, Fatek and other software for PLC. Developing WINCC, BEIJER and similar HMI software. AutoCAD 2D and 3D Microsoft Word and Excel. I work for money, but I really care about client satisfaction!

    $11.11 /hr
    0 hours
    0.00
  2. Salah Uddin

    Salah Uddin

    PDF Form, Acrobat, LiveCycle, WordPress, JavaScript, InDesign, XML

    Bangladesh - Last active: 1 month ago - Tests: 12 - Portfolio: 6

    I have worked with Electronic Form (Fillable PDF), LiveCycle Designer, Wordpress and Other CMS based Website with Content Development, Graphics Design, Data Processing, Format Layout with MS Office, Multimedia and Image Editing, Engineering Design etc. I developed my wide range of skills in using: # Adobe Acrobat Professional; # Adobe LiveCycle Designer; # Adobe InDesign & Fireworks; # Adobe Illustrator & Photoshop; # MS-Office application (Power Point , Excel, Word); # Any other work relating to Wordpress, E-Commerce software, Social Media, Auto CAD, Technical Support, Computer Networking and various Software Operation with different OS. My goals and interests are to keep up to date with new technologies, frequently improving my skill set and trying new things to ensure I get the acceptable solution for the job.

    Groups: Central Desktop, salesforce.com...

    $10.00 /hr
    333 hours
    5.00
  3. Muneeb M.

    Muneeb M.

    Electronic Engineer by profession, Excel and VBA Expert by choice!

    Pakistan - Last active: 08/11/2014 - Tests: 5 - Portfolio: 1

    A result-oriented individual with strong self-learning and creative problem-solving capabilities. I generate results with start-to-finish, nothing-to-chance style. I have excellent comprehension and retention abilities, and believe in complete understanding of my primary as well as peripheral tools and processes. A combined experience of about 16 years dealing with computers and their users. 4 years of programming experience in VB, VBA, C/C++, SPIN, Assembly. Well-versed in Microsoft tools (Excel, Word, PowerPoint, SharePoint, Windows and other nits and bits).

    $10.00 /hr
    80 hours
    5.00
  4. John lester S.

    John lester S.

    Senior Electronic Hardware Design Engineer

    Philippines - Last active: 2 days ago - Tests: 3 - Portfolio: 10

    More than 10 years of experience in circuit design and product development. Have long time experience in doing electrical and electronic schematics. Experienced in switching converter design such as flayback, boost, buck, forward, ITTF, LLC and others. Have experience in designing low to high power switch mode power supply from proto to mass production. Capable of doing detailed analysis such as worst case, design failure mode and effects analysis, monte carlo and reliability prediction to come up with a robust and high quality design. Have long experience in implementing customer requirements and designing circuit from scratch that best fit the specifications. Capable of leading people. Summary of Capabilities: 1. AC-DC power supply design, switching and linear, multiple outputs or single, trimmable or fixed 2. DC-DC power supply design 3. Offline AC-DC adapter design 4. Charger design with constant current and constant voltage, AC-DC 5. Charger design with constant current and constant voltage , DC-DC for Li-Ion, Li-Poly, LiFeP04, Lead acid and so on 6. LED lighting related applications 7. Solar panel energy harvesting and charging systems 8. Switching converters such as buck, boost, buck-boost, flyback, forward, LLC, half bridge etc 9. Amplifiers, filters, switch 10. MCU, DSP and digital circuits 11. Schematic and PCB using eagle 12. Simulations using LTSpice, Matlab, Simulink, Simetrix and Simplis 13. Design analysis and computations using Mathcad 14. Control system design, type 1,2,3 and PID using spice, SISO tool in Matlab or Simulink control design Projects: 1. 750 W AC-DC, efficiency 94% This is a three stage design consisting of power factor correction circuit (boost topology), buck pre-regualtor and main DC-DC (half bridge resonance). The supply has EMI filter on board and passed CE and FCC or ICES emission limits. This supply is compliant to line surge; can withstand 2.6kV and 1.3kV common mode and differential mode voltage spikes. It complies to ESD, EFT, ringwave, dips and interruptions and harmonics and of course conducted and radiated EMI. The design has an auxilliary circuit which is a flyback topology that provides power to the control and houskeeping circuits. The main controllers are digital signal controllers (DSC). Some features includes but not limited to: a) Current sharing, b) Startup short protection, c) Running Short Protection, d) Over voltage protection, e) Under voltage protection, f) Power limit, g) Higher power factor (close to unity), h) holdup of 20msec, i) over current protection, j) over temperature protection, k) output reporting, l) input reporting, m) higher accuracy 2. 500 W AC-DC, efficiency 92% Have the same features as above. This PSU is composed of two stage only; PFC and LLC resonant converter. 3. 360 W AC-DC, 90% efficiency, variable output This power supply has variable output voltage from 14.25V to 16.5V. Two stage design using PFC and LLC resonant converter. All the basic circuits in item number one are in place. All the international standards are also met. This power supply has a convection rating of 220W; meaning it can handle this power without a fan cooling. This is ideal for medical and other fanless applications. 4. 450 W AC-DC, 92% efficiency, multiple outputs This power supply has multiple outputs. It has 12V/21A, 5V/30A, 3.3V/10A and standby of 5V/4A. All the international standards are in place and has all the protections needed as item number 1 above. 5. 50W buck-boost design This is used for e-cigarrete. It can handle continuous 50W with variable output voltage of 1V to 10V. It is powered by a 3.7V rechargeable batttery. 6. AC-DC, 5W charger design with constant current and contant voltage 7. Charging circuit for solar panel applications 8. Lithium Ion Charger 32V input to 24V output with variable charge current 9. Energy saving standby circuit 10. Smart Junction boxes for automotive. This is the one controlling all the body electronics of an automobile. Such as headlights, foglights, wipers, mirrors, heated mirror, fans, etc.

    $20.00 /hr
    11 hours
    4.40
  5. Muhammad farhan S.

    Muhammad farhan S.

    Research Writer & Developer

    Pakistan - Last active: 27 days ago - Tests: 2 - Portfolio: 6

    I am qualified in electronics, graduated in Political Science and mastered in Sociology. I am adept at technical writing, research and development of various social and technical projects for un-wired world. Developed contents for CNET, Amazon, buy.com and wallmart, various military Mags, and Sociopolitical think tanks. I'm a Spread Spectrum you Need.

    $5.56 /hr
    0 hours
    4.49
  6. Muhammad O.

    Muhammad O.

    Embedded System Engineer

    Pakistan - Last active: 25 days ago - Tests: 3

    Coding in C for all types of microcontrollers (8-bit ~ 32 bit), 1. PIC microcontroller: PIC16, PIC18, dsPic 2. ATMEL microcontroller:8051, ATMega and AVR. 3. Renesas: RX62N. 4. Arduino Sketches IDE used 1. PIC : MPLAB and MikroC 2. ATMEL 8051: Keil uVision 3. Atmega AVR: CodeVisionAVR, Atmel Studio 4. Renesas : IAR and HEW. 5. Arduino Simulation in PROTEUS for PIC and Atmel controllers. As an embedded system engineer I can help you code for your microcontroller based project in C. You can consult me in any phase of your project. I can suggest design improvements and document your project as well. Skills: 1. Embedded firmware development. 2. PCB designing. 3. Testing and debugging the prototype. 4. Project Documentation

    $20.00 /hr
    0 hours
    0.00
  7. edward ngugi

    edward ngugi

    expert electronics technician.

    Kenya - Last active: 3 days ago - Portfolio: 1

    i am good at my work and keep time. i have more than 10 years experience and am happy to do my work.. i did electronics starting off with analogue electronics and have been doing complex repairs on electronics appliances and have done many pcb designs.. i am a quick thinker and able to solve problems with minimal supervision and accurately.. i like new challenges and i will offer myself to my employees to work hard and to invent new electronics solutions to the ever need of that in this first growing universe.. i am an expert in domestic electronics but open and ready to learn on industrial electronics which is not so much different as the concept is almost similar.. i can trouble shoot and do repairs on radios,TVs,amplifiers,speakers,ovens, and many more appliances..

    $20.00 /hr
    0 hours
    0.00
  8. Abdul Malik Shally

    Abdul Malik Shally

    BSc. Medical billing and collection executive. Claim Analyst.

    Sri Lanka - Last active: 05/27/2014 - Tests: 4 - Portfolio: 1

    I am a science graduate and I am working for medical billing company as a Medical Biller and AR specialist, I have vast experience in the different field of medical billing. Such as • Claims Billing, • Submissions, if it is required submit claims through online and make sure claims get paid on time. Such as OHCA and Medicaid claims. • Payment posting, • Follow-up with insurance companies for all types of claims and make the necessary correction for denied claims. • Prepare late file claim's appeals. • Expert in following PMS, such as eCW and Advanced MD. During my experience, I have developed medical billing knowledge. I understand and serve as the professional mediator between US Healthcare providers and insurance companies. I take responsibility for Revenue Cycle Management of the providers and healthcare centers. Also I strictly follow HIPPA. I am also very quick learner to understand and work on any new systems that is needed as per client requirements.

    $8.89 /hr
    151 hours
    4.73
  9. Salman Ahmed

    Salman Ahmed

    Mr

    Pakistan - Last active: 09/02/2013 - Tests: 12 - Portfolio: 3

    Challenging position with a dynamic group that will permit me to utilize the skill developed through working experience. Being hardworking and dynamic I would like to move into a progressive and larger corporation, where I can use my professional and academic skills enhancing the company as well as my own growth. In this connection I would like to present myself for your esteemed organization. Use my Skills and education into the organization for prosperity of organization. To learn and work hard in a professional environment with experience for improving the organization’s progress in a way that I can extent my career development and move on to the bright and prospective future

    $5.56 /hr
    0 hours
    4.74