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Design flash light circuit

$30-250 USD

Closed
Posted over 7 years ago

$30-250 USD

Paid on delivery
This project is to design a circuit board to control a flashlight. The circuit board will be responsible for charging the lithium polymer battery and control the brightness of the LED. This circuit must incorporate a micro-USB port, lithium polymer battery protection, and allow for 3 different lighting intensities. The rough bounding box size for this circuit is 36 X 12.5 X 4 mm. A momentary switch will be used to cycle through the power modes. Thank you!
Project ID: 12747683

About the project

18 proposals
Remote project
Active 7 yrs ago

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18 freelancers are bidding on average $148 USD for this job
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hi sir I am an expert electronics engineer with more than 6 years of experience . I have read the details and I am sure I can do it for you. please have a look at my profile I assure you quality work and on time delivery waiting for your reply to start regards
$150 USD in 5 days
4.8 (163 reviews)
7.4
7.4
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I am an Electrical Engineer having specialization in Electronics and Control, teaching in Electrical Department at FAST National University Pakistan. I am also persuing my MS degree in Electrical Engineering with specialization in CONTROL. I have taught the followings courses, and also done many projects related to these subjects as well as related to consumer electronics products. 1. Control System Design & Modelling (Continuous, Discrete, Linear, Non-Linear, Optimal, Fuzzy Logic + Matlab & Simulink) 2. Digital System/Logic Design (Verilog, VHDL, Logisim) 3. Micro-controllers (8051, Arduino, PIC) 4. Power Electronics (PSIM, MATLAB, PSpice) 5. Control of Electric Machine Drives 6. Circuit Analysis and Designe etc 7. PCB Design (Proteous + Ultiboard + Altium Designer) I assure you, if you assign your project to me, you surely gonna work with me in future. Note: I also provide the solution of mechanical engineering related projects.
$150 USD in 3 days
4.8 (236 reviews)
7.1
7.1
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Hello. I'm an electrical engineer / PCB designer. You may check my qualification in the profile. Your project is interesting for me . We can discuss any details in the chat. Will do my best.
$150 USD in 7 days
5.0 (95 reviews)
6.6
6.6
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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 high frequency transformers 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.
$444 USD in 20 days
4.8 (51 reviews)
6.5
6.5
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Hello dear I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit, code and PCB design along with gerber files. I will design your project using extra cheap and reliable components that will be beneficial for you if you are planning to make a commercial product.I also have experience in bluetooth modules and android apps development. I can also develop android app for you that will be able to control your project and you will be able to monitor your data. If you wish we can discuss in chat.
$150 USD in 7 days
5.0 (14 reviews)
5.5
5.5
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I will do this. Please provide me all the instructions regarding this so that I can start it.
$166 USD in 1 day
4.9 (28 reviews)
5.3
5.3
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Hello, I have several years design experience developing circuits and boards for various applications. These include spectrometer readout systems, analytical instruments, USB isolators, Microcontroller boards, Modular Conveyor systems, DC/DC converters, etc. I use Eagle 6.5 for schematics and layout, LTSpice for simulation. I have also developed chemical processing and distribution equipment, medical devices, factory automation systems,and others. The bid will be for a prototype board design you can test and for the final modifications required to fully adapt the board to your final housing. The time is for the initial PCB design. Modifications will depend on what kinds. I will need some final target cost figures at production quantities, battery size, etc. If you need me to provide the test PCB, let me know. Those costs (and time) will be extra. Let me know if I can be of assistance. Best regards, Stuart Borden.
$250 USD in 7 days
5.0 (6 reviews)
4.3
4.3
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hello i am an electrical engineering student, 4th year live in egypt , i can do this circuit, i did things similar to it , but nowadays have exams , if you can wait , i will finish at 22 and start working for you
$89 USD in 7 days
5.0 (9 reviews)
3.4
3.4
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I have work in different ARM architecture like v4/v4T(ARM7), Raspberry Pi, Anduino Nano,uno,mega Different Xilinx FPGA architecture(7 Series FPGAs,Kintex-7,Zynq-7000)
$55 USD in 3 days
4.9 (2 reviews)
2.9
2.9
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Hello, i can help you with your interesting project. i am EXPERT in PCB design, so i can do in ONE WEEK. write me, if you are interested. Regards. Carlos Maita
$50 USD in 7 days
4.1 (3 reviews)
3.5
3.5
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Hi, We have done similar projects for industries, please share the LED, battery and mechanical details. About us: We have 10 years of experience in Product development for Defense, Industrial projects. Micro-controllers we can work on PIC, STM32 and AVR and also we have all the development kit and instruments available with us. For PCB design we use KICAD v4. And for GUI C# / LABVIEW will be used. Thanks and Regards, Santosh
$250 USD in 5 days
5.0 (2 reviews)
1.8
1.8
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Haven read the job description carefully; I assure you that I can get the project done and delivered on time even within the stipulated budget. As an experienced Engineer, I have been able to fix the challenges in my field of work. Am a detail-oriented, high-energy Chemical Engineering graduate with keen problem-solving and analytical skills as evidenced by the ability to provide analysis and recommendations to improve plant operations. I have strong interpersonal, planning, and organizational skills as demonstrated in chemical engineering internships and have contributed independently, or as part of a team, to coordinate and manage products ranging from floor layout designs and thermodynamic calculations to the reproduction of obsolete parts. Excellent performance records and personal reviews in three previous co-op positions To obtain an internship in software engineering, preferably in object-oriented development, Using real problem-solving, critical thinking, and communication skills. Moreover, I bid at an affordable price in relationship to the affixed budget, in other words, my price is always fair to welcome employers, and samples that are very similar to your project are available if you wish to see. To hire me directly, you can meet with: https://www.freelancer.com/u/dannygist.html
$30 USD in 2 days
5.0 (2 reviews)
1.4
1.4
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I am new to the website so you can not see my rating or review, but I can assure you that if you work with me then you will always like to work with me for such kind of projects.
$30 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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Hello. I have experience on designing electronics circuits for medical applications and power electronics. This include circuit design, schematics simulation, PCB design using Altium, and MCU programing, Atmel MCU's particularly. I have built three-phase inverters, DC-DC converters, three-phase rectifiers on the Power electronics area. On medical devices I have built a respiratory flow sensor that connects to a smartphone/tablet and parse data. By the side of the smartphone, I developed an Android App, that shows the parsed data on screen on a Data-Time graph.
$30 USD in 5 days
0.0 (0 reviews)
0.0
0.0

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Member since Jan 7, 2017

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