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build an electronic driver

$30-250 USD

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İlan edilme: yaklaşık 6 yıl önce

$30-250 USD

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Dear, FreeLancer. My name is Romani S., messaging you from Egypt. Me and my friends are looking to build an Electric motorcycle which is powered by a 7.5 KW three phase AC motor. The power source that we do have is 3.7 V(DC) lithium batteries. We do wonder if you can help us with a driver that we can use to convert the the DC source to a 3 phase AC source with the tool to change to motor speed. Thanks in advanced Romani S. Elkommos
Proje No: 16339143

Proje hakkında

12 teklif
Uzaktan proje
Son aktiviteden bu yana geçen zaman 6 yıl önce

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Hi romani Im from egypt also, and can design that circuit, please tell what the value of dc voltage and ampere. Looking forward to do work with you, i can prototype also Hope to hear from you Relevant Skills and Experience Engineering, pcb layout, prototype
$200 USD 20 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
12 freelancer bu proje için ortalama $467 USD teklif veriyor
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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 welding power supplies design, high frequency transformers design, solar grid tie transformers, electrical vehicles design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, 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 very good experience to design high voltage power supplies up to 50KV for capacitor charging power supplies using soft switching topologies. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.
$2.777 USD 40 gün içinde
4,9 (59 değerlendirme)
6,7
6,7
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Hi sir, We have designed battery management systems for hybrid vehicles, it is not just a dc to ac conversion project. It is to to make complete dc and then ac conversion project with autonomous hybrid vehicle battery management system. Lets talk to us on this project. Regards, Ahmad
$1.000 USD 3 gün içinde
4,7 (36 değerlendirme)
6,0
6,0
Kullanıcı Avatarı
I am electrical engineer .I have lot of experience working with various employers globally. Can I do Circuit Analysis and design, Power System Analysis,DC/AC machines Electrical Distribution , translation and technical writer .i use Autocad,Matlab,Revit,Plc simulator, Pspice,word and excel.
$100 USD 7 gün içinde
4,9 (17 değerlendirme)
3,5
3,5
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Hi Romani S. I can help to choose something from ready made drivers, looks to me like there is no sense to built it from scratch, plenty of such things are produced. May be some little additions will be needed, like converting position of a bike handle into PWM signal if some converter from RC toys used. I have some knowledge/experience it those matters. Would need to know: 1. Motors kV and max. speed needed. 2. Is some ready made battery used (then it's voltage) or 3.7 V cells can be combined as needed to get the voltage required. I'm an electronic engineer with 5 years of experience in 3D modelling using SolidWorks. Good technical background. Best regards Anatolii
$111 USD 4 gün içinde
4,1 (3 değerlendirme)
3,5
3,5
Kullanıcı Avatarı
I already read the description. Your idea is feasible. But not optimized. I think a better way is use a DC motor and used battery direct power it.
$250 USD 10 gün içinde
2,2 (8 değerlendirme)
5,2
5,2
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Hello, I want to apply for your project. I have BS in Electronic engineering. I use Altium Designer 17. Please check my portfolio with some of my latest projects. Looking forward for your answer.
$166 USD 7 gün içinde
5,0 (2 değerlendirme)
1,9
1,9
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plc and arduino programmer and prototyping i have my father company in our region .....New Lancer we able to do hardware and software
$222 USD 3 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
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A proposal has not yet been provided
$111 USD 5 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
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A proposal has not yet been provided
$166 USD 7 gün içinde
0,0 (0 değerlendirme)
0,0
0,0
Kullanıcı Avatarı
A proposal has not yet been provided
$250 USD 21 gün içinde
0,0 (0 değerlendirme)
0,0
0,0

Müşteri hakkında

   UNITED STATES bayrağı
Los angeles, United States
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Ödeme yöntemi onaylandı
Ağu 23, 2015 tarihinden bu yana üye

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