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$250-750 USD

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投稿日: 8年近く前

$250-750 USD

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I need a device that will turn on a 240 AC volt load for a set period of time. Either 4 hours or 8 hours. I should be able to manufacture it in quantities of 300-400 for less than 10USD. The load is inductive so some types of relay won't work. Required Workflow: 1. Device is plugged into the wall with a C13 plug into a female terminal on the box 2. Inductive load is plugged into the box with a C14 male pigtail 3. The box should have two buttons, one for 4 hours, one for 8 hours, 4. When either button is pressed the load is activated for the appropriate period of time, during this time an LED indicates that the load is active. 5. At the end of the time the light goes off and the load is deactivated Required Deliverables: 1. A device that can perform the workflow above, this must fit in a 3"x3"x4" box 2. Complete design files including CAD files (only for custom components like the enclosure) PCB design files, and a bill of material with vendors for each component 3. The complete assembly can't cost more than $10 including labor.
プロジェクト ID: 10676395

プロジェクトについて

29個の提案
リモートプロジェクト
アクティブ 8年前

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この仕事に29人のフリーランサーが、平均$650 USDで入札しています
ユーザーアバター
Hello, Greetings of the day, I read your requirements and found this project very interesting. I am very much interested to do this project for you. I understand your requirements and want to start this project as soon as you award me.I am a standard member here and a full time freelancer, so you can contact me anytime. to brief about me: I am mechanical design engineer by profession and graduate in mechanical engineering with PG in CAD/CAM, ANSYS & Solidworks. I have worked many project in softwares like CATIA V5, 3Dmax, Creo, revit, AutoCAD and many more. As i have engineering background with five years of industrial experience i am very much familiar to do this kind of job. I have preferred freelancer badge, you can see next to my profile name. You can check my profile and portfolio:- https://www.freelancer.com/u/ashrafshekh.html My bid is negotiable and it depends on the required deliverable. Looking forward to hear from you & feel free to contact me Thanks & regards Ashraf Shaikh
$736 USD 10日以内
4.9 (90 レビュー)
7.5
7.5
ユーザーアバター
Hello dear I have experience in designing electronics circuits and can help you. I will make your project practically on breadboard and will provide you circuit, code and PCB design. I will design your project using very very low cost. If you wish we can discuss in chat.
$800 USD 30日以内
4.8 (60 レビュー)
6.9
6.9
ユーザーアバター
Hello, Have a great day. We are startup company offering services for developing Electronic devices. We will deliver you 2 units of well fabricated prototypes. Please feel free to contact us. Best Regards, Shahbaz. Please note: We can also produce the required devices at affordable rates may be under $7.00 (USD Seven only).
$1,000 USD 25日以内
4.6 (60 レビュー)
7.1
7.1
ユーザーアバター
Hi, I have plenty of experience with similar projects. I can execute this project in less possible time. Looking Forward, Khawaja
$526 USD 10日以内
4.8 (77 レビュー)
6.8
6.8
ユーザーアバター
Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent high frequency transformers design, circuits design, Regulated power supplies design with universal input to DC output, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.
$777 USD 15日以内
4.9 (56 レビュー)
6.7
6.7
ユーザーアバター
hi i am an electrical engineer. i have vast experience related to circuit design and pcb layout. i have done many embedded system projects. i have experience regarding pcb design. let me know if you are interested. we can discuss further on chat.
$900 USD 15日以内
4.8 (32 レビュー)
6.4
6.4
ユーザーアバター
This is really an interesting job and can be done nicely. To me this job should be done using a microcontroller along with solid state switching instead of using relay. Solid state relay will have no wear and tear over time and the load can be turned on at zero crossing of the AC signal. A simple microcontroller like PIC12F675 can add flexibility in design and reliability. Timing will be accurate and everything can be software upgradable in case if you need different timing rather than fixed 4 or 8 hours. I can only assist you in getting the electronic part manufactured, but for enclosure design you need find someone else for the mechanical design. I will incorporate the physical design of the PCB as your enclosure design. My bid includes, designing schematic, designing of PCB and the firmware development in case if you plan to go with a microcontroller. I will also assist you in getting these manufactured if you need from China for cheaper price. The mentioned size is adequate for it or may be even smaller when final plan is discussed. Please let me know the usability of this product as well as the load that you will be connecting in to this device. Thanks and I look forward to hear from you. Regards... Roy
$749 USD 20日以内
5.0 (56 レビュー)
6.1
6.1
ユーザーアバター
Hi i am interested to this project. I am familiar with electronics, PIC microcontroller as well as PCB design by Eagle. Thanks.
$555 USD 15日以内
4.9 (96 レビュー)
5.9
5.9
ユーザーアバター
A proposal has not yet been provided
$1,333 USD 40日以内
4.8 (6 レビュー)
4.6
4.6
ユーザーアバター
I will deliver you a product with with following specifications, 1. Auto detect if load presents 2. turn the plugged load on when press a time button (either 4hr or 8hr) 3. While in operation it is not responding to buttons 4. While in operation it will indicated by a LED (Green or Red) 5. When time is up LED will turn off and load will turn off 6. C13 and C14 plug bases will be used for power supply and connect the load If this is matching with your requirement please let me know that I will send you the time plan
$722 USD 20日以内
4.4 (1 レビュー)
3.9
3.9
ユーザーアバター
Hi I can do that circuit for you. I will prefer to use a standard off the shelf enclosure for this, as this will be much easier for you to buy directly from a supplier located at US or elsewhere. The only thing I need you to clarify is that if you're OK to use a mini transfo for powering the circuit, as by using a "live powering" circuit will not have the required by regulations isolation, and since this device has buttons that the final user will have to press, it might not be 100% safe, although the buttons themselves provides some isolation. That said, I do prefer to use an isolation transformer for better safety reasons. Production cost including it will be kept inside your 10USD ceiling. I assume that cost doesn't include the enclosure needed, but only all the electronics parts & board ready made to be fitted in the box. Or not? Please specify. for further info / clarifications please contact me. Best regards Sotiris Papadimitriou
$350 USD 15日以内
5.0 (1 レビュー)
3.0
3.0
ユーザーアバター
i noted the additional information about the project, Hi, i can help you design the required electronic device for you, i am experienced and skillful and can give a compete model with rendering to give it a realistic look to view how it will be when manufactured. leave me a message and we discuss more on it, thanks
$273 USD 3日以内
0.0 (0 レビュー)
2.4
2.4
ユーザーアバター
My name is Mike and I’m from UK. I work with individual clients and also provide outsourcing services for a number of UK and USA based agencies. Your project description sounds interesting to me and I do have skills & experience that is required to complete this project. I can show you some examples of my work. Please contact me to discuss your project.
$555 USD 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
A proposal has not yet been provided
$555 USD 7日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I can complete all the demands in your project requirements.
$300 USD 12日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
Hi I have a similar product bit heavier then this but I can tailor it to get the desired product I can send the eagle file in chat if youd like
$350 USD 10日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I have 4+ years experience in PCB design. I can handle both schematic and PCB layout design from scratch to an end. I am familiar with IPC 7351 standards for footprint creation. Having familiar with standard CAD Packages such as Cadence Allegro, Altium, Gerber generation by CAM350. Having good knowledge and experience in high speed design, Analog and mixed signal designs. Also familiar with design for manufacturing, assembly and testing. This will reduce the delivery time of your pcb. Having experience in thermal analysis so that I can do it to your design also to check whether the pcb is thermally stable. If you wish to have a prototype board and testing before standard production, I can do support for this as I have good contacts with pcb manufacturers in all over India. I will also support you for the costing details for the entire assembly including PCB manufacturing, Assembling, Testing, Components. I think your product falls under home automation category and it might be like a smart switch. So, I would like to say that I have experience in designing the home automation products. I am waiting for you to hire me.
$750 USD 12日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I run an R&D team in the field of IT and electronics. I also have production capabilities in my facility. Exactly what you need.
$555 USD 15日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I am a motivated engineer and I already know how to solve your problem. My method will require only a couple discrete electronic components. This will allow for very cheap production. I am also proficient in CAD and will make an exterior for your product. Finally, I am willing to do this project for a very minimal price. This is because engineering is a passion of mine and a very large incentive of money is simply not necessary. If you are interested in my services, send me a chat message and we can discuss your project in further detail. Thanks.
$250 USD 5日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I have Experience in the design of PCBs and microcontroller programming, I worked with 8051 and freescale microcontrollers, as so, I fit properly for the job.
$738 USD 30日以内
0.0 (0 レビュー)
0.0
0.0

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メンバー登録日:6月 3, 2016

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