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Analog Input Design changes

$10-30 USD

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Dibuat lebih dari 9 tahun yang lalu

$10-30 USD

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We have a circuit for a 4 to 20mA input. This circuit is not as linear as we require. We need someone to take a quick look at the design and give some recommendations. We have also had a number fail, so we may need better high voltage protection.
ID Proyek: 6381243

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19 proposal
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Aktif 10 tahun yang lalu

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I love solving complex problems of analgoue electronics, and I'm really good at this, I think. I have a lot of experience with ultra-precision voltage and current sources design. I can look at a project both as a whole and focus on the details. Also, I am convinced that I have the ability to correct other people's designs, because I can improve the necessary details only, without changing the correct parts, even though it does not agree with my vision of such design. In this job, I expect you giving me schematic and describing what is wrong with it, and what are you expectations are. I probably ask some questions, and send back improved circuit diagram.
$35 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
19 freelancer menawar dengan rata-rata $44 USD untuk pekerjaan ini
Avatar Pengguna
Over 35 years experience as an electronic design and PCB engineer, please see my profile for more details I have had a lot of recent experience with 4 to 20mA circuits, please send me more details of your setup (including circuits etc, and the problems you are having. The current price and timescales are only place holders to allow me to communicate with you Best Regards Dave Lelievre
$30 USD dalam 1 hari
5,0 (11 ulasan)
5,5
5,5
Avatar Pengguna
Hi, I have done a lot of work in measurement and sensor interfacing and may be able to assist you. Please send more information about the design and the required performance. Kind regards Marc
$55 USD dalam 3 hari
5,0 (15 ulasan)
5,2
5,2
Avatar Pengguna
I work with electronics circuits (digital, analog, mixed and of power) and embedded products with microcontrollers since 1996 . I developed circuits and products for big companies and also for individual people - I do not make a distinction, all jobs are important to me. The electronics was my love since I was child and became my profession. I've Ph.D. in Electronic Engineering and BSc in Physics, however I'm a humble person and I accepted suggestions. I use my knowledge, experience from previous works and ideas to work on your project. An important thing is that work as freelancer is my only work, so I work on the projects assigned to me on full time - this isn't my secondary job. I am ready to answer any question you may have. I hope you choose me. After hired we can stablish a full communication using email or Skype. Regards, Leonardo Takahata
$25 USD dalam 1 hari
4,8 (7 ulasan)
4,1
4,1
Avatar Pengguna
hi, i am an electrical engineer and i have an experience in designing analog electronics and microcontroller based embedded systems. please contact me to share the details of your project. thanks, Rizwan
$35 USD dalam 1 hari
4,7 (4 ulasan)
3,4
3,4
Avatar Pengguna
A proposal has not yet been provided
$100 USD dalam 1 hari
5,0 (7 ulasan)
3,3
3,3
Avatar Pengguna
If you are interested on my bid please send the circuit, Very unexpected problem as across a resistor of 250E(say) the voltage is always linear . Adi
$25 USD dalam 1 hari
5,0 (3 ulasan)
3,0
3,0
Avatar Pengguna
Please send me your requirements and the schematic! I have 8 years experience as an electrical engineer. Have a nice day!
$35 USD dalam 1 hari
4,7 (3 ulasan)
2,2
2,2
Avatar Pengguna
Hi, We are a team of electronics&embedded engineer with more than 10 years of experience in designing and developing various digital and embedded systems... We have done a lot of projects in electronics. Also we conduct many workshops on electronics..As a part of our training program we developed Arduino/PIC based Programming boards and driver boards for sensors. Since we help engineering students to complete their academic projects, we have experienced with a lot of sensors, components, PCBs etc. So we can assure you that this project can be done 100%perfect....:-) Please check our completed projects...:-) Kindly let us know more details about this project and we can complete it together...:-) Thank You
$55 USD dalam 1 hari
5,0 (1 ulasan)
1,3
1,3
Avatar Pengguna
A proposal has not yet been provided
$25 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I have work experience in embeded electronics and PCB design with 4 years. I will be help you. please sent to me your circuit. thanks.
$25 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
Greetings, We are a group of electronic engineers here in Karachi Pakistan working on various electronics projects. We have experience in developing pharmaceutical temperature and humidity logging sensor modules using DS18B20 and SHT75 digital sensors. These sensors are used in GSK, GETZ pharma, ROCHE pharma, WYETH pharma, Johnson & Johnson, Novartis, Sanofi Aventis, Merck. We have provided our services to our online clients on elance and they are satisfied with our work. We deal in the following basic technologies of electronic design and development. 1- Analog Electronics 2- Digital Electronics 3- PCB layout Design 4- Circuit Design 5- Circuit Analysis and simulation 6- Instrumentation 7- Industrial control 8- Electronic Sensors 9- Micro-controllers based Circuit Design and Programming 10- MATLAB PROTEUS MULTISIM PSPICE ALTIUM ORCAD PIC BASIC PRO We provide great services in very reasonable price. Your satisfaction is our highest priority. Best Regards Faizan Electronics Design Engineer
$25 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I am Hardware engineer having 14 years experience in Digital/Analog circuit design, analysis, testing. My Qaulification is Master of Engineer from BITS, Pilani, India. I done many projects successfully based on analog circuits for consumer, medical and aviation fields. I also working as a freelancer expert consultant for design reviews and suggestions for aviation company in Bangalore. I can review and suggest the design faults and improvements seamlessly Regards anumolu
$30 USD dalam 1 hari
0,0 (0 ulasan)
2,4
2,4
Avatar Pengguna
I have 8 yrs EE design experience in every electronics consumer product, like Mobile phone, DECT phone, BT Headset, and any wireless audio as well.
$35 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I have 10 years of experience in the field of power electronics. I have designed the product like UPS, Static Transfer Switch, Gan Device converter, Electronic Ballast and Charger etc. I have also worked on parallel redundancy system where failure of circuit is very important. Thanks & Regards, Bindish Thakkar +919535184159
$111 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I am an electronic engineer and i have a deep intrest in circuit designing, troubleshooting and PCB designing. So you can trust me. I will try my best to fuulfil your requirements.
$25 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I'm expert on analog circuits for industrial control interfaces. Please send the schematic and if it's simple issue I can answer for FREE
$25 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0
Avatar Pengguna
I have experience in debugging analog designs. I have been working as an electrical engineer for nearly 5 years. I primarily work in the Aerospace market doing power electronics and mixed signal design where signal conditioning is a must. I understand the need for voltage protection. Many of our discrete signals are nominally 28V with transients voltages often up to around 100V.
$55 USD dalam 1 hari
0,0 (0 ulasan)
0,0
0,0

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Bendera UNITED KINGDOM
Gawley's Gate, United Kingdom
5,0
51
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Anggota sejak Mei 26, 2013

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