Small circuit design

Over 35 years experience as an electronic design and PCB engineer, please see my profile for more details I wonder if you can supply more details. Is the current threshold level programmable and if so what would be its range. What will be the power source? I am trying to understand if a micro controller is required or just a simple comparator The current price and timescales are only place holders to allow me to communicate with you Best Regards Dave Lelievre Poole Dorset

Hello, I have been associated with Hardware design (Circuit / Electronics design), PCB design, PCB Manufacturing, Component procurement and PCB Assembling for over 7 years. I have used various CAD/EDA tools for PCB design. Would you prefer any specific EDA tool for PCB design (or) any tool is okay? I will provide the PCB Manufacturing, Component procurement & PCB Assembling service if you are interested. Thanks & Regards, Karthik

Dear Sir, We have completed several hardware and software project s using WiFi, Ethernet, USB, Bluetooth, GSM and RF using PIC, Atmel, TI ICs. Please see our profile for our past and current projects. We can do your project on Fix price. it will convenient to you and me. Total Project cost will be below $750, for PCB design, and Circuit Firmware, we will make this as small as possible. may be 10 - 20 mm Hope to join your project. Best regards, Lasantha Prasad

Hi, Have a Great Day. I can help you. I have expertise in developing such systems. What i guess you need microcontroller based system to detect the low current. This will be done using proper shunt having differential amplifier as a signal conditioner and a Microcontroller with built in ADC. The choice of setting Low current limit will also be acoomodated in firmware of microcontroller via 2 push switches. Choice of viewing the flow of current (AMP, Amp/Hr etc) can also be implemented using an LCD but size constraints are there. Please feel free to contact. Best Regards, Shahbaz.

Hello. I can design and test the prototype (hand made to be fast on track). Also you'll get the schematic, routed pcb, bill of materials, assemble and osscill. waveforms (Altium project and pdf documents too). Because you need to easy change the limit value we need to use a very simple small mcu. So you'll get the firmware too (source and executable). I prefer to work for fixed price nor hour. It will be 31 day to deliver, $800, 20% prepaid. Best Regards, Anton.

Hi, I can do your project using Arduino platform. Please explain exactly what is the function of the button that you want. And in what way it will be used. Because it affects the circuit diagram. Slavi .

I'm Electronic engineer and I would like to use my extensive Embedded system design and PCB design knowledge to do this projects . I'm so experienced with Arduino, PIC ,DSpics and expert with orcad, proteus,Ni multisim, PSpice , Matlab, .software. For more details you can go through my portfolio as well . thank you Chamika Gamage Electronic Engineer

Hello. I am a Veteran Embedded systems designer with over 9 years in the industry for developing solutions for Industrial Automation, Machine control and Data Acquisition. I have completed a number of Product designs with complete Schematics and PCBs made for Manufacturing, Assembly & Testing. Some of the projects i have done on freelancer and you can see in my profile. I design systems to comply with standards and specs. I have Altium designer (Summer 9) as well as Eagle at office and can design the board for you. I can provide Gerber files for PCB fabrication as well as Centroid, Paste and BOM files for assembly. For your project, i have already searched for the highlighted the major Parts (BOM) needed to complete your design based on your requirements. I have made an Excel sheet with calculations and come up with the required design parameters and based on these. Can provide same for discussion. Before that though, I have a few questions and need some details / clarifications before i can design a solution for you. Till then, my bid is an Indicative bid only. It will be best if we can probably hold an online discussion (preferably voice via skype) to discuss your requirements in detail so i may then come-up with the best possible solution for your needs. If you want, you may add me on skype where my id is the same as my freelancer profile name (TopGunPk). Look forward to hearing from you soon. Warm regards Zeeshan A. Noorwala Automation Engineering Solutions

Hello, My name is Alex. I am an electronics engineer. I have attached my CV bellow. Please have a look. The skills I have, I think are suited for making your project come to life. The solution I offer for realizing your project uses a small microcontroller. I shall develop also a current sensing method that is suited for your needs. But on this topic I need more information. I need to know exactly what the current thresholds are. I have worked previously with lithium batteries, so I am able to help you with this project. This is my CV: I have 8 years of product design in the automotive industry. I am an expert in: - Dc - Dc converters - Battery charging expert for Li, Ni, -As a Layouter I have 5 Years experience. I am an expert in : - Power Dissipation Calculation - EMC Rules - Impedance Calculation - Manufacturing Rules I have made Layout for ARM processor. Work also with BGA footprint. I have done projects even on 10 layer. So I know how to build a layer stack up. As Layout and Schematic software I am an expert in Eagle, PADs, Zuken. As Simulation software for the Schematic I used LTSpice.

hi... i can design your project in Altium Designer.. i ll provide to you schematics, PCB, BOM and gerber files im interesting your project, pls give me more details.. thanks..

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I am an Instrumentation & electronics engineer and done many projects on multisim based on power supply. I have one project submitted for international conference. So i think this project is too easy for me. I will definitely design such circuit in two days.

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Process of Transition PCB design testing if required Asset testing and implementation Support for 3 days

HI, Ready made circuit design available with same specs. kindly send me details so can send you the same for approval. Some modification needs to be done rest all circuit design is ready.

Hi, I am a professional microcontroller and electronics design consultant and have been working on equipment for the Oil and Gas industry that uses portable batteries. I have already developed circuits that can monitor current and voltage from Li-Ion or Lead acid Gel Cell batteries on voltages from 12V to 120V. I have also designed MOSFET full and half bridge motor controllers using DC voltages. I develop programs for Microchip® PIC and other microcontrollers using the C language. I can provide schematic circuit designs, PCB layout and also I can produce prototype pcb's, single or double sided. I can design using surface mount or conventional components, and since your design appears to require a small size then SMD would probably be the right choice. for you. I charge £25 hour for developments, and can provide update reports and full documentation as required. I am based in the North East of England but can travel to your location for meetings if required. I can liase with your using Skype or email. Thanks for reading Allen Brooks

Power Source management was successfully done in my All Terrain Robot. You can have a look at the video of the project in my portfolio. It would be great pleasure to work for you in my area of expertise.

Hello. I can help you. I am electronic designer. I have 5 years of experience designing and building prototypes of smart electronic systems. Contact me and we will have a solution for you.

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. WE ASSURE GUARANTEED SUCCESS. JUST TRY OUR SERVICES YOU WILL FIND IT. Best Regards Faizan Electronics Design Engineer

I am a electrical engineering student having vast experience in projects especially regarding embedded systems. Since I spend most of my time in projects, I am fully aware of many tips and solutions of various problems related to circuit design and embedded systems. Most of the projects I have done in 3 years are of micro controller. I have worked on PIC and 8051 micro controllers and programmed them in both assembly and C programming. I am also working on arduino platform for over a year. Currently I have full command over every module of PIC18 micro controllers. This can easily be displayed from my project reports I have attached in my portfolio. Your job seems very interesting for me. Even if I don't get this job I will definitely do it myself. I guarantee you my dedication. Thank you

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