Find Jobs
Hire Freelancers

Offline Flyback Converter Design with Current Output stage - UL/FCC Revision and Review

$750-1500 USD

已取消
已发布超过 3 年前

$750-1500 USD

货到付款
I have an offline flyback converter that functions, but needs some revisions. It's a 300W (250W usage) design with 85VAC to 280VAC input. Goes into a PFC stage, then flyback stage to isolate. Secondary side then has an avg. current mode buck that outputs to a high voltage high power LED array. I need someone to look at the design as-is and see if there are any standouts for UL/FCC approval. Additionally I'd like someone to help optimize and improve the design. Constraints are price and transformer selection. More details will be provided to the freelancers that ask and show that they have an understanding of offline power supply design.
项目 ID: 28217061

关于此项目

6提案
远程项目
活跃3 年前

想赚点钱吗?

在Freelancer上竞价的好处

设定您的预算和时间范围
为您的工作获得报酬
简要概述您的提案
免费注册和竞标工作
颁发给:
用户头像
Hello, I have PhD in power electronics with over 5 year of experience in consumer power electronic industry. I specialize in design optimization with lowcost BOM as you may be aware how cost competitive consumer power electronic industry is. I can definitely help you in this project. Please message me to discuss in detail. Thanks.
$1,200 USD 在10天之内
5.0 (9条评论)
4.7
4.7
6威客以平均价$1,158 USD来参与此工作竞价
用户头像
Best PCB Design Expert at your doorstep! Dear Client, We have an understanding of offline power supply design. We can help you optimize and improve the design for your project. We can Design with Current Output stage - UL/FCC Revision and Review 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 Flyback Converter based 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. Microcontrollers based circuit design – STM32, STM8S 2. Smart Products like Smart watch - GSM/GPRS/GPS 3. Wireless Products - BLE/WiFi- ESP32/ESP8266 4. Low Power Battery Products design – Rechargeable and Non chargeable 5. 85VAC, 280VAC, LED, FCC, UL, PFC 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? 4. Are there any other specific requirements besides the ones you mentioned 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
$1,000 USD 在2天之内
5.0 (37条评论)
7.3
7.3
用户头像
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, Plasma ARC power supplies, high frequency transformers design, solar grid tie transformers, Chargers for electrical vehicles, 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.
$1,500 USD 在30天之内
4.9 (61条评论)
6.9
6.9
用户头像
Hi. I am an professional electronic engineer with good experience in power supply circuit design. If you give me a chance of interview, I will show my previous workings for power circuit. Please let me know about your project in detail. Best regards, Andrii.
$1,500 USD 在5天之内
4.9 (40条评论)
6.6
6.6
用户头像
Dear Client, Please share me offline flyback converter and provide you revisions 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 Flyback Converter Design 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 array, PFC, 280VAC, 300W, FCC 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? 5. What are the user protections required for this project? 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
$1,000 USD 在2天之内
5.0 (4条评论)
5.2
5.2

关于客户

UNITED STATES的国旗
Colorado Springs, United States
5.0
2
会员自1月 27, 2013起

客户认证

谢谢!我们已通过电子邮件向您发送了索取免费积分的链接。
发送电子邮件时出现问题。请再试一次。
已注册用户 发布工作总数
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
加载预览
授予地理位置权限。
您的登录会话已过期而且您已经登出,请再次登录。