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Design me a Product

$30-250 USD

En curso
Publicado hace más de 9 años

$30-250 USD

Pagado a la entrega
if amps in a circuit (120V 60Hz) > (selected amount, 0 to 15 amps, this will be variable and i will need to choose) then break the circuit, after 15 minutes complete the circuit, wait 20 seconds and repeat the process. when i say variable in my mind i'm thinking a knob i can turn. zero amps at the bottom and at least 15 on the top. i would like to have ten of these gizmo's built - can anyone help me with the design and give me a simple drawing and the source the parts - radio shack would be good and easy for me.
ID del proyecto: 6577758

Información sobre el proyecto

14 propuestas
Proyecto remoto
Activo hace 9 años

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14 freelancers están ofertando un promedio de $281 USD por este trabajo
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hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project. Please check my profile for my previous work experiences. let me know if you are interested in the bid so we can discuss the details further. regards
$650 USD en 15 días
4,6 (51 comentarios)
7,6
7,6
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Hi, I am an Electrical Engineer practicing for last 8 years in an R&D Organization. I have designed a number of products ranging from RF & Microwave circuits to digital circuits. i have experience in designing filters, couplers, LNAs, Amplifiers, antennas, sweep generators, function generators, VCOs, NCO and many more in the frequency range of DC to 2 GHz. i use ADS, HFSS, OrCAD, Eagle PCB and Altium for the design and development of the above mentioned products. I have designed circuits for Filters, Couplers, LNA, Amplifiers, Antennas, Bluetooth, WiFi, GSM, GPS, Sweep Generators, Function Generators, VCOs, NCOs, DDS, 555 timers, AM Modulators, Microcontrollers, EEPROM, Flash, Accelerometers, USB, RTC, Strain Guages, Opto-couplers etc. My area of expertise include also PCB Schematic and Layout Design, Antenna Design, PCB Prototyping and testing, Programming using LabWindows, LabVIEW and MATLAB, etc. Looking forward to discuss in detail. Regards
$250 USD en 7 días
4,9 (23 comentarios)
5,6
5,6
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Hi there. I bid the highest amount because I still don't have a complete grasp of what you're needing here. If the work is less than I assume, I can drop this bid to an appropriate level. Please correct me if I am wrong. You want a 120V 60Hz device that runs for 15 mins at a user selected amperage between 0 and 15 amps, shuts down for 20 seconds while you manually change the settings(or don't), repeat. What is the electrical load? Well, from what I know so far, you're going to need to order in some stuff to keep voltage stable while reducing amperage and not have heat issues. I know how to automate it with timers and relays, really it comes down to what you are looking for specifically and what your price range per unit is. Shoot me a message here, please. Thanks, -Ryan Kearney
$250 USD en 3 días
5,0 (5 comentarios)
3,6
3,6
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Hello, I can design you a schematic, and if required a PCB and possibly even create a prototype of the proposed PCB. It will most likely include a small voltage drop in the sensor-system, depending on the maximum project cost. Expensive could mean less than 100mV, cheapest could go up to 4VRMS (meaning 60W of heat at 15A current). There's even possibilities to trigger on RMS or peak current. My bid is based on a Circuit design and parts list (advised parts), I will simulate the design's extremes on paper to determine its reliability and then either supply a hand drawing or an Eagle Schematic File, as you prefer. For 'extra costs' the circuit can be transferred to a board design (Eagle PCB file), or even produced in prototype for 230VAC, 50Hz, tested and filmed. If the budget reaches to local production cost, it's even possible to construct ten full 120VAC 60Hz devices and send them, but as I am not without a 'day job' that could probably "break the bank". Looking forward to hearing from you, Robert van Leeuwen Asmyldof (findable for back-ground checks at the Dutch Chamber of Commerce and various online outlets)
$155 USD en 3 días
5,0 (1 comentario)
2,2
2,2
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Hello sir, i am Mostafa Mahmoud i am Student in the Production Engineering Department in Alexandria university (faculty of engineering). My service portfolio includes electronics design, Concept designing, Paper to CAD Conversion, 2D to 3D CAD conversion, Design & Development of system . i am using (sketch up , 3d-max , solid works) software for 3D & 2D works, Auto CAD for 2D works and can provide you accurate drawings & models in acceptable formats. my Skype : ( engmostafafreelancer1 ) Mostafa Mahmoud. thanks .
$311 USD en 7 días
0,0 (0 comentarios)
0,0
0,0
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Lets Discuss....................................................................................................................................
$111 USD en 3 días
0,0 (0 comentarios)
2,6
2,6
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A proposal has not yet been provided
$155 USD en 3 días
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$88 USD en 3 días
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$222 USD en 15 días
0,0 (0 comentarios)
0,0
0,0
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Proposal belum diberikan
$266 USD en 5 días
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$555 USD en 5 días
0,0 (0 comentarios)
0,0
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Sobre este cliente

Bandera de CAYMAN ISLANDS
Cayman Islands
0,0
0
Miembro desde oct 12, 2014

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