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Trailing edge dimmer using IGBT and zero cross detection

$10-200 USD

Cerrado
Publicado hace más de 8 años

$10-200 USD

Pagado a la entrega
Hello, I'm designing a universal dimmer for 230 volts led lamps (4w to 100w). Currently I'm using a pic microcontroller and an IGBT. The fact is I have achieved to create a trailing edge dimmer + zero cross detection using an optocoupler but I cannot avoid lamp flickering. The mcu is programmed using CCS. I need someone able to solve this problem and show it working on a protoboard. I will provide the current schematic and the list of components used until now. IMPORTANT: I achieved to simulate the correct working using simulation tools. I need proof of working on a protoboard. Not virtual simulations. I will not release any initial payment. The total payment will be done when testing of the proposal solution, succeed. Thank you in advance!
ID del proyecto: 9270196

Información sobre el proyecto

19 propuestas
Proyecto remoto
Activo hace 8 años

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19 freelancers están ofertando un promedio de $186 USD por este trabajo
Avatar del usuario
hi i am an electrical engineer. i have strong skill set related to pic micro controllers and their programming. i have worked on many embedded. i can do this project for you. let me know if you are interested and we will discuss the details.
$222 USD en 4 días
4,9 (32 comentarios)
6,5
6,5
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I have over 35 years experience as an electronic design engineer, please see my profile for more details The current price and timescales are only place holders to allow me to communicate with you Please provide current schematic, BOM and C code to allow me to review Best Regards Dave Lelievre
$116 USD en 1 día
4,9 (26 comentarios)
6,4
6,4
Avatar del usuario
I have 3, years experience in embedded field . I have already completed dimmer circuit using optocoupler ic and avr controller . I can give you the output within a time limit you want.
$222 USD en 7 días
4,8 (6 comentarios)
4,6
4,6
Avatar del usuario
Hi! Im an electrical and electronic masters student studying in UWE. I have the experience of coding in C/C++/Assembly/Arduino/PIC C/MikroC/MATLAB for more than three years. I also have the knowledge and experience of ELECTRICAL AND ELECTRONICS circuit analysis and design. I also have experience in embedded systems using microcontrollers like PIC, ATMEL, ARDUINO and most of the other types. I have done BCS (British computer society) diploma level so I have the knowledge on PHP/HTML5/mySQL for website development. I have completed many freelancer assignments successfully. If you are interested in hiring me, please send me a message. I have made a lot of reports in the recent past. I have good experience in using Microsoft office softwares like Word, Excel and Powerpoint. I can write reports of any length without mistakes. Thank you!
$100 USD en 1 día
4,7 (28 comentarios)
4,8
4,8
Avatar del usuario
Hi. I have a ready solution that will solve your problem. But it based on ATMega328p (Arduini Pro Mini). How many channels do you need? If you are interested, tomorrow I'll take a video of it's work. Hope we'll have a good cooperation. Have a nice day.
$111 USD en 2 días
5,0 (1 comentario)
4,1
4,1
Avatar del usuario
Hola, It is dimmer for LED lamps powered directly from 230Vac (without any AC/DC converters)? I was worked few years ago for company that manufacturing LED lamps and I think I may solve Your problems, or told that they can't be solved (there aren't so many LED lamp drivers that work properly with dimmers) Show me the schematic and I see what can be done. Best regards, Mateusz Liszczyk
$222 USD en 10 días
4,7 (5 comentarios)
4,3
4,3
Avatar del usuario
Hi, I read your ad and I would wish to contribute to the outcome of your work effectively, as an electronics engineer, especially control systems, instrumentation and power electronics. I can use proteus ISIS to show that the solution works. Please take a look at my portfolio to get an idea of my background and skills. I f you agree, more details could be exchanged by chat. Best regards.
$88 USD en 3 días
4,7 (9 comentarios)
3,9
3,9
Avatar del usuario
Dear Customer I have read your project specific requirement for trailing edge dimmer using IGBT and zero cross detection. Now a days I am already working on similar projects which you are looking for. Our Skills:- Embedded System:- Microcontrollers/Development Platforms ARM Cortex based microcontrollers, PIC 18 and 16 series, 8051 and its derivatives, MSP430, Arduino, Raspberry Pi, Beaglebone Balck, PLC programming Operating Systems and Libraries FreeRTOS, Embedded Linux, etc. IDEs and Toolboxes Kiel Microvision, CCS, MPLab, Visual Studio, etc. Programming Languages Embedded C, Assembly, VHDL PCB Designing Altium Designer Studio Computer Vision/Image Processing OpenCV, MATLAB Our team includes graduates in Electronic & Communication, Instrumentation & Control Engineering with experiences more than 10 years. We guarantee 100% dedication to your project and we will continue to work on it until you are completely satisfied with what we work portfolio projects that you are free to peruse through at your discretion. “I would love to hear from you” You are most welcome to contact me any time 24/7 for discuss/ask any query on skype or chat. Thanks & Regards, Sudhir Giri Skype ID : draftingeng
$200 USD en 5 días
4,7 (4 comentarios)
3,9
3,9
Avatar del usuario
I curently design lighting controls. Triac dimmers and currently working with an IGBT dimmer. I have professionally designed a large number of dimmers over the past 30 years and have considerable experience in solving lighting problems. It is unrealistic to expect anybody to build your circuit and solve your problem for $200. The problem may be the circuit itself, it may be the zero cross detector or it may be the way the cpu is dealing with the zero cross and outputting the drive. Reviewing somebodys code could take up to 3 days or longer, remember we have no idea what your code is. I am able to provide guideance on what to look for, and what you may need to do to fix the problem, but this also depends on your own skills and what test equipment you have. I currently have many Triac dimmers and also a working IGBT Dimmer, driven by a CPU which does not flicker however it is not based on a PIC. I can work on a consultancy basis, but cannot guarantee that you will fix your problem within the timescale or budget as you probably realise, you may have been struggling with this for a fair time. Expecting a solution in a day or two may not be possible or practical. Happy to chat to discuss,
$222 USD en 10 días
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$116 USD en 1 día
0,0 (0 comentarios)
0,0
0,0
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Hi I am an electrical engineer and I am ready for your job. It is a pleasure to do a small job for you. Please contact to discuss more. My Regards
$116 USD en 1 día
0,0 (0 comentarios)
0,0
0,0
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Hi Sir, I made a similar circuit using a TRIAC, and there was no flickering problem. I used a PIC24H, writing FW in Assembly and zero crossing optocouplers. In my case, I used electronic Neon lights, which have a slow response, similar to incandescent lamps. In the case of LED lamps, the response is very fast. I need to know the waveform, the voltage and frequency of the power line, some information about the LED lamps and the process used for dimming. It could be that a simple filter solve your problem but maybe you have to change the optocoupler. I hope you choose to work with me. Best regards, Andrea
$111 USD en 15 días
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$116 USD en 1 día
0,0 (0 comentarios)
0,0
0,0
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A proposal has not yet been provided
$116 USD en 2 días
0,0 (0 comentarios)
0,0
0,0
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I'm a electronic designer with a big experience on projects using pic microcontroller as well as controlling high power loads using them.
$616 USD en 20 días
0,0 (0 comentarios)
0,0
0,0

Sobre este cliente

Bandera de SPAIN
IRUN, Spain
5,0
9
Forma de pago verificada
Miembro desde jun 4, 2012

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