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Design an LED driver circuit with pulsed switch input

$30-250 AUD

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投稿日: 約3年前

$30-250 AUD

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I need an LED flash circuit to form part of a portable consumer product. It is powered by Lipo battery, but the main working voltage is 5V. There are two LEDs, which should be driven at a strict current between 2.5A and 3A. The forward voltage drop may vary (see datasheet attached) so the current will need to be controlled. The diodes are placed in parallel, so restrict the total current through both diodes to 5A-6A. The flash should be triggered by the STROBE pin, which is 3.3V when the flash should be on, and 0V when it should be off. A strict maximum of 15mA can be drawn through this pin. The pulses on this pin are up to 50ms in length. The response time of the diodes from off to on should be as short as possible. Deliverables: - Schematic - Document with theory of operation, explanation & calculations for utilised parts - Any components which cannot be sourced from the inventory list (attached) should be justified
プロジェクト ID: 29957775

プロジェクトについて

23個の提案
リモートプロジェクト
アクティブ 3年前

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この仕事に23人のフリーランサーが、平均$162 AUDで入札しています
ユーザーアバター
Best PCB Design Expert at your doorstep! Dear Client, We can provide Design an LED driver circuit with pulsed switch input as your requirements. We have gone through all pdfs which you shared . We couldn’t stop ourselves from bidding after going through the description as they are an exact match with our skill set and experience. We have experience in Design an LED driver circuit with pulsed switch input PCB design and know all the intricacies required to get the job done with perfection. With more than 15 Years of experience in PCB Design and Circuit Design in Altium, We can ensure you best quality work and before time delivery. Following is a brief list of expertise that we are carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc 7. LED flash circuit Please answer the following questions: 1 What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? Let’s have a quick discussion for 5 mins where we would formulate a plan of action of how we shall take this project to the horizons of success. Regards Avi Tech Experts Quality is never an Accident
$250 AUD 2日以内
5.0 (38 レビュー)
7.1
7.1
ユーザーアバター
Hi. I am an electronic engineer with good experience in LED driver circuit design. I have read your project details, so I am very confident in your project. I will keep good communication for further discussion. Best regards Andrii.
$140 AUD 2日以内
4.9 (39 レビュー)
6.6
6.6
ユーザーアバター
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, Keyboard, POE, UART, SPI, I2C, RF, BLE, LED lighting 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.
$200 AUD 7日以内
4.9 (29 レビュー)
6.0
6.0
ユーザーアバター
Hello, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems' design. I have designed couple of led lighting projects and I checked your requirements. I am sure that I can help you with your project. Just give me all the details and I will do my best to help you. Best regards
$200 AUD 7日以内
5.0 (28 レビュー)
5.2
5.2
ユーザーアバター
Dear Client, I will deliver an LED driver circuit with pulsed switch input in a quality and timely manner. I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in Design an LED driver circuit and could design it for you as per your requirements. I am having more than 15 years of experience in PCB Design, Circuit Design, Circuit simulation, IOT products development and building electronic products. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wifi, NFC, LoRa etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. GSM, GPS, GPRS 6. LED flash, switch After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? 4. What are the standards that the product would be complying to? Please try to answer these questions based on which I would be providing free of cost consultation. I am new to this site but I am an expert in electronics product development. Please message me so that I can formulate a success plan for this project. Waiting for your reply, Regards Hari Mohan Engineering for one is a magic for others
$180 AUD 2日以内
5.0 (3 レビュー)
5.1
5.1
ユーザーアバター
Hi, I see that you need some assistant in I am expert and having 5 years of experience in simulations using MATLAB and SIMULINK in many fields including Electronics, Communication, Control System, Signal Processing and Mathematics etc.I can help you with anything related to Electrical engineering. Udemy / Skillshare Certified: Simulations and Coding using Matlab/Simulink: 1) Linear Algebra, Calculus and Numerical Methods with coding 2) Electrical Power System Design And Simulation 3) Digital Signal Processing 4)Control System Design and Simulation 5) Image Processing 6) communication systems design and simulation I can provide services: 1 Image classification, Machine Learning, and such other stuff 2 Image processing in Matlab including medical Image Processing 3 GUI (Graphical User Interface) 4 Paper presentation 5 Computer vision 6 Speech and audio processing in Matlab 7 Brain signal processing 8 Digital signal processing in Matlab, I'll be cheerful in case you can trust in me to assist you with this endeavor. You can enlist me straightforwardly through this connection. Below is my profile, you can check my past works and review. https://www.freelancer.com/u/mzdesmag?w=f
$140 AUD 3日以内
4.7 (13 レビュー)
5.1
5.1
ユーザーアバター
Hello I have experience in various of Electronic Product design including : LED driver circuit. If you need a design completing or someone with electronics knowledge to sound ideas off, please do get in touch and I'd be happy to talk through your job. Cheers Srdan
$100 AUD 7日以内
5.0 (7 レビュー)
4.6
4.6
ユーザーアバター
Hello. Seems like the main challenge is to design a current stabilizing circuit with a low voltage drop on it, about 1.6 V (difference between 5 V power supply and the max voltage drop on LED). Still not so difficult, I have a vast experience in analog circuits, including LEDs. If you contact me so I know you consider hiring me, I would try to design it and let you know results - components needed, any additional components beyond the list provided, etc. Then if you decide to hire me I provide schematic and detailed explanation/calculations. And I would need to know the ambient temperature range, otherwise assume probably +15...+40 deg C. I'm an electronic engineer with about 25 years of experience, also about 7 years of experience in 3D modelling using SolidWorks. Experience with Arduino and ESP32 controllers. Good technical background. Experience in 3D printing, manufacturing drawings. Best regards Anatolii
$200 AUD 3日以内
5.0 (2 レビュー)
4.4
4.4
ユーザーアバター
Operation at 2.5A-3.0A may not be possible with LEDs in the F4 bin. Which Vf bin are you planning on using? What is the minimum pulse width? Regards, Jim
$175 AUD 5日以内
5.0 (14 レビュー)
4.4
4.4
ユーザーアバター
Hi there, I am a senior electronics engineer. I have enough experience in Circuit Design, PCB design and Microcontroller. I have understood the project description, i am 100% sure i can complete your task. Please let me discuss about your project in more detail. I will keep good communication for discussing. Best regards Zhanet
$200 AUD 7日以内
5.0 (5 レビュー)
4.1
4.1
ユーザーアバター
I read LED flash project. I can this task. I have experience power electronic( buck, boost, flyback, battery charge/discharge protection, motor control circuit, inverter, BLDC motor control(FOC)), analog electronic and digital electronic. I use professional Keil UVision, Atollic TrueStudio, Altium designer, Kicad, EasyEDA, LTSpice and PSpice. I have pcb design and embedded software experience in defense, space and medical fields. If you want quality design, i need time. Please send me massage.
$220 AUD 10日以内
5.0 (3 レビュー)
2.5
2.5
ユーザーアバター
I have make your internet of things (IOT) platform because I have 2 years experience in this field so pls contact me
$200 AUD 5日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I have experience in building projects related to lighting and high-power LED lamps. Also I can prototype if needed
$200 AUD 14日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
I watched your project. for maximum performance and long battery life. We need to use high frequency switching circuits for this project. I have a lot of experience in designing switching circuits for LED I will do as well on this project as you expected thank you
$200 AUD 2日以内
0.0 (0 レビュー)
0.0
0.0
ユーザーアバター
highly skilled Mechatronics Engineer and has a big experience in such circuit design. Made a lighting system for an electric car project before ( Apex Racing Team )
$30 AUD 1日以内
0.0 (0 レビュー)
0.0
0.0

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AUSTRALIAのフラグ
Woolloongabba, Australia
5.0
2
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メンバー登録日:4月 6, 2015

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