Looking for a power supply expert to fix my PSU

Hi, I am a Hardware Engineer with more than 5 years of experice in the whole production cycle of prototypes, from designing schematics and PCB to fabrication and validation. I have some experience in EMI/EMC debbuging, for I have had to struggle with some product certifications at the laboratory. EMC/EMI debbuging, sometimes called "electromagic", generally is about detecting the frecuencies which don't pass the standard and trying to attenuate them using filters, but of course there are many other aspects as PCB routing, shielding, cables, etc. If you agree, we can discuss furthers details and work together to solve your EMI problems. Thak you, Best regards.

Hello, I can see that the capacitors of AC-DC are missing and the value of the capacitor on the output step-down is too high. Can you share the layout? regards,

Best Power Supply Design Expert! ⭐ ⭐ ⭐ ⭐ ⭐ Dear Client, I have gone through the attached pdf and jpg file and will be able to execute this project for you. With over 30 years of experience in electronics design, circuitry, and PCB design, I am well-equipped to address the issues with your power supply unit (PSU) and assist in achieving CE certification for your room controller product. I am confident in my ability to bring a unique perspective to this endeavor. ✅I will propose practical solutions to rectify the identified issues. This may involve component selection, layout adjustments, or filtering techniques to ensure compliance with CE certification requirements. ✅I will carefully incorporate Schematic2 into the system, ensuring seamless integration with the ESP32-S3 and Display. ✅I'll meticulously examine the oscillograph records, specifically focusing on Channel 1 (VCC_IN), Channel 2 (+3.3V), and Channel 3 (VCC). ⭐Are there any specific performance benchmarks or criteria that the modified power supply? ⭐Can you provide more details about the specific issues or observations related to the I5 conducted radio frequency ? I am eager to collaborate remotely and apply my extensive experience to resolve the identified power supply issue, ensuring compliance with CE certification requirements. Looking forward to the opportunity to contribute to the success of your room controller project. Best Regards Hari Mohan

Hi. I have experience in schematic design +PCB layout. I have designed power supplies and battery backup system and ESP32 ,arduino , PICO custom boards with various sensors and actuators. Looking forward to your response to discuss more My Introduction: I have master degree in Mechatronics Engineering, have 7 years of Industrial experience in dealing with embedded system for IOT control / monitoring system designs all type of microcontrollers C/C++, Python programming like Arduino PIC STM 32 Esp32 ESP8266 Raspberry PI. Kindly contact me and we will discus the detail of task. Budget and time will be decided in chat.

I am a mechatronic engineer with more than 5 years experience in circuit and PCB design and I believe I can handle your task to perfection

Hello there and thank you for considering me for this job. I understand that you are looking for a power supply expert to assist you with a project and specifically need my expertise in power supply design and CE certification tests. I am available to work on this project remotely and support you for a solution to fix the identified problem. I have extensive knowledge in electrical engineering, circuit design, electronics and PCB layout which will be an asset for you in solving your problem. I have comprehensive experience in designing electronic circuits and PCB boards using latest electrical design tools such as proteus, eagle and Altium. My skillset includes power supply design which will be useful in solving your issue related to the PSU. I would be more than happy to discuss this project further if given the chance and look forward to hearing from you soon! Thank you again for considering me for this job and I wish you the best of luck!

Hello, my name is Adnan Gohar and I am an experienced and results-driven professional with a background in both corporate and entrepreneurial environments. As an expert in power supply design and CE certification tests, I have the skills necessary to assist you with your project. I understand the importance of having a functioning room controller when designing a home or office space, so I am available to work on this project remotely to provide support for a solution to fix the identified problem. With experience in power supply design, including SMR20.8/10111 and Datasheet SMR20.8/10111, as well as the schematic2 used with ESP32-S3 and Display connected to it, I am confident that I can provide exactly what you need to get your room controller up and running again properly.

Dear Client, After looking at the datasheet and application note of schematic and Power Supply, I would like to share my experience and suggestions for ensuring precision in measurement and interfacing. I have 10+ years of experience in Power Supply Design, I've reviewed your attached documents, including the schematic and datasheets. I can swiftly identify the heart of the matter: the "I5 conducted radio frequency" failure in your CE certification requirements. I propose a thorough analysis of the current schematic and a strategic adjustment in the power supply circuitry, potentially involving better shielding and filtering components. To know more about my expertise, please visit: ✅https://www.freelancer.in/u/electronicsdone Now, let's move forward with essential questions: ⭐Could you share the anticipated production volume for the room controllers? ⭐Do you have specific size constraints for the power supply module? I'm eager to collaborate and provide the expertise you need to successfully overcome this hurdle. Please feel free to message me at your earliest convenience. Time is of the essence, and I'm ready to embark on this project with you. Looking forward to working together Kind Regards Avi Gupta Quality is never an accident

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Hello Client. I have reading the I5 test report and, your product not pass for product's resistance to radio frequency interference. It typically relates to the product's power consumption and how it responds when exposed to radio frequency interference through conductors and cables. I think the issue come from the power module you're use. I think with my experience I can consultant to use the suitable module. Pls kindly chat with me. Many thanks.

Hi, Hope you are doing well. Just read Your project description Looking for a power supply expert to fix my PSU. I am a goal oriented person and qualified for the profession, fully working on AutoCAD drawing ,elevation, solid work, Revit ,FBX ,Unity, Render also interior and exterior design, and also making 2d,3d modelling and animating. I have done many project-related engineering, Solid work, CAD/CAM, product designing, CFD & FEA simulation. I think you will be extremely pleased when you will see the scope of my work wherein I have used parametric and associate dimension in CAD systems. Please contact me so that we can discuss more details on the project. Thanks

I have more than 6 years’ experience in embedded hardware designing, multilayer PCB layout with “Altium designer” and “KiCad”. My specialty lies on ARM Based embedded system design with EMC standard. I have experience working alongside with international company, at Sweden and Australia. Kindly refer to example of my work done :)

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I am writing to express my genuine enthusiasm for your power supply project. With extensive experience in Power Supply Design and a proven track record of resolving complex issues similar to the one you've described, I am confident in my ability to assist you in achieving CE certification for your room controller. **Expertise:** 1. **Power Supply Design:** I specialize in designing efficient and reliable power supply systems. I have carefully reviewed the documents you provided, including the schematics and oscillograph records, and I am well-equipped to analyze and enhance the existing design. 2. **CE Certification:** I understand the stringent requirements for CE certification, particularly in the context of conducted radio frequency (I5). My expertise in power supply design aligns perfectly with the needs of your project. **Approach:** 1. **Comprehensive Analysis:** I will meticulously review the provided documents, focusing on the areas related to the CE certification failure. This includes a detailed examination of the schematics, oscillograph records, and the conducted radio frequency report. Thank you for considering my proposal.

Hi there, i am an experienced electronics engineer, i design demultiplexing circuits and power systems, you can take a look at my portfolio for my past works. I know how to implement your esp project.I am online 24hrs and fluent in English, i look forward to hearing from you. Cheers, Michael.

Are you looking Design, development service and Manufacturing. Best place VYUTPAD Techchnologies Who We Are VYUTPAD Techchnologies: we specialize in turning ideas into real-time visibility for electronic solution. With 12years of experience in the electronics industry, we have honed our skills to provide comprehensive support throughout the product development lifecycle (Requirement to delivery) What We Offer: ?Power Electronics ?Product Development ?EMI/EMC Compliance ?Boar Bring up ?Module Testing ?Design Excellence ?Prototyping and Testing ?Manufacturing Support ?Quality Assurance Are you ready to turn your Electronic Product ideas into reality? Contact VYUTPAD Techchnologies today and let us be your partner in Electronic Product Development and Manufacturing success. End User: We are looking for a power supply expert to assist us with a project. The specific expertise we need is Power Supply Design, and we have prepared a schematic for the project. We would like an engineer who is available to work on this project remotely and support us for a solution to fix the identified problem. Thank you for considering us for this job!