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5V Circuit Design: Timer & USB Charger

$10-30 USD

Completed
Posted over 3 years ago

$10-30 USD

Paid on delivery
I’d like help in designing a micro circuit with rechargeable battery that, with a switch or button push, will run a small load (>0.2A, 5V) for a duration of either 4 or 8 hours. The pictures below are from an off-the-shelf product that has the desired timer functions (this one has 2, 4, and 8 hour timer options). This (pictured) circuit has an IC, resistors and capacitors but no relay. The temperature functions of the upper part of this circuit are not needed.
Project ID: 26842254

About the project

12 proposals
Remote project
Active 4 yrs ago

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Hello there I am the final year student of Electrical Engineering having fresh and detailed information about rectifiers clippers clampers circuits which is the basic requirement of your circuit. I have made this project in my 3rd semester on PCB with the help of proteus. Kindly share some details so i can start my project rapidly.
$15 USD in 1 day
0.0 (0 reviews)
0.0
0.0
12 freelancers are bidding on average $29 USD for this job
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Hello, thank you for your job posting. I read your description about--5V Circuit Design: Timer & USB Charger I am a senior electrical engineer. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic, Atmega, FPGA, ARM, DSP, PLC and so on. And I can design the circuit by the Altium, Eagle, KiCAD, Allegro & OrCAD, PADs. I provide the services - Gerber files, Netlist generation, BOM generation and 3D Models of PCAD and ECAD. I am also good at AutoCAD, Solidworks. And I can simulate all circuits with Proteus, LT-spice, Matlab, Simulink, Multisim, and Labview as well. Due to my experience in firmware development, I will bring you the perfect result in time with high quality. I will also give you a detailed explanation of the process. Looking forward to hearing from you soon Thanks
$20 USD in 2 days
5.0 (77 reviews)
5.8
5.8
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Dear Client. I have just read your job description and your project is really interesting to me. I have many experiences working for 12+ years with Circuit design, PCB design, manufacturing functional prototyping with firmware programming and testing especially. Here are some of the experiences that I built ago. - Schematic and PCB design and Layout using Altium Designer, Eagle. - high-speed, flexible, Multi-Layer PCB design. - DDR, motor control, power converter, POE, UART, SPI, I2C, RF, BLE design - ARM, DSP, MCUs, Arduino, Raspberry pi experiences. I am sure I can complete it on time with high quality. If you hire me, I can start to work for your job immediately. I'll do my best for you. Thank you for your time. Best regards.
$20 USD in 3 days
5.0 (9 reviews)
4.2
4.2
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Hello, Hope this message finds you well, I checked your details and I believe that my experience is what you are looking 4. I have been working on similar projects for the past eight years, and I have the essential skills including; Electronics Microcontroller PCB Layout Circuit Design I will prove to be of great help to you. SEND MESSAGE/CHAT, so that discuss more on the details including budget and deadlines… Please REMEMBER to; Wash your hands frequently, Maintain social distancing, Avoid touching eyes, nose and mouth..., Practice respiratory hygiene, Stay home and if you feel unwell seek medical care early. Regards, BrainCenter Inc
$100 USD in 3 days
4.5 (7 reviews)
4.2
4.2
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hello dear project owner i am an electronic engineer. i have expereince in embedded system designing and pcb designing. i can do this in one day.
$25 USD in 2 days
5.0 (5 reviews)
3.1
3.1
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Hello, I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. I have done Diploma in Electronics and Communication Engineering and B Tech in Electrical and Electronics Engineering. I have 5 years of work experience in same field. Software knowledge : MS office, Google Docs, sheets & Slides, EAGLE, Protues, LT spices, arduino IDE, python, Design Spark, Fritzing, Ki-Cad and Etc. I look forward to hearing from you. Thank you.
$30 USD in 4 days
5.0 (9 reviews)
2.9
2.9
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Hello, I am an Electrical and Electronics Engineer and I completed my master's degree. I designed many electronic circuits and I have academic publications on this subject. You can also see this from my portfolio. Thanks to the electronic circuit design programs I can use, I can design the circuit. I can assist you in making the 5V charging circuit. I can make PCB with the features you want. If necessary, I can use a microcontroller. I can prepare the necessary design and software. I always guarantee free support if there is any problem when the project is over. We can proceed more easily by speaking. I work professionally. Thank you :)
$20 USD in 2 days
4.6 (6 reviews)
3.2
3.2
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Hello, I am an electronics and telecommunication engineer and I have solid background in power electronics. So far I have designed many SMPS, LLC or any other type of regulator circuits. I can help you with your project. Just let me know. Best regards
$20 USD in 7 days
2.7 (4 reviews)
2.9
2.9
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Hello, thank you for your job posting. I am a professional electronics engineer having more than 5 years of experience. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic, Atmega. And I can design the circuit by the Altium, Eagle, KiCAD, Allegro & OrCAD, PADs. I provide the services - Gerber files, Netlist generation, BOM generation and 3D Models of PCAD and ECAD. I am also good at AutoCAD. And I can simulate all circuits with Proteus, LT-spice, Matlab, Simulink, Multisim, and Labview as well. Due to my experience in firmware development, I will bring you the perfect result in time with high quality. I will also give you a detailed explanation of the process. Thanks
$15 USD in 7 days
4.6 (1 review)
0.4
0.4
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Hi There, I've reviewed your requirements.I have 4 years experince as electrical engineer. Client's idea + Programmer's good coding is the perfect result. As shown on my profile, I have a lot of experience. Please leave a message,so we can discuss the project in more detail as well negotiate a competitive budget. Thanks.
$20 USD in 1 day
0.0 (0 reviews)
0.0
0.0
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Hi, This is Mahi, for best PCB design I am the one you can trust. My design will be compact and simple. Feel free to contact me in the inbox for more. By the way, can check my profile to get a idea ! Mahi
$27 USD in 1 day
5.0 (1 review)
0.2
0.2

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Flag of UNITED STATES
Drexel Hill, United States
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