Custom AC-DC Power Module

@chetanb382

Hello, We can develop your compact 170–265 VAC triple-output AC-DC supply in KiCad, using the provided reference circuit as the starting point. We will handle the schematic, component selection, flyback/transformer-related design review, protection, feedback, compact PCB layout, creepage/clearance and manufacturing outputs. We will provide the complete editable KiCad project files, including schematic, PCB layout, footprints, BOM and all required Gerber/drill files so you can manufacture the board through your preferred supplier. Please note that we cannot provide or ship the 3 physical prototype samples. However, we can provide the complete production-ready KiCad design package so you can have the prototypes manufactured locally. Timeline: 5-6 days Budget: ₹8,000 for the complete KiCad design and manufacturing files. Before starting, please confirm the required input range, output isolation arrangement, maximum board height and transformer/core constraints. You can also visit our profile and portfolio to review our electronics and PCB work. Regards, M&C Eng

@ostronik

Hi, Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI) and Mobile Application Development, delivering reliable, industrial-grade electronic and software solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development, Hardware Design, Mobile Application(Android & iOS), Prototyping, and Scalable Mass Production, with a strong focus on quality, performance, and cost efficiency. Core Expertise: • Microcontrollers: PIC, STM32, ESP Family, AVR. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer with optimized power design, isolation handling, and EMI/EMC compliance • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485 Mobile Application Capabilities: • Custom Android & iOS mobile applications for device control, monitoring, and data visualization • Real-time dashboards, cloud connectivity, and secure user authentication • Seamless integration between IoT platforms and mobile apps We have successfully transformed multiple concepts into market-ready electronic and mobile-enabled solutions. We would be glad to share a brief reference video. Let’s schedule a meeting to discuss your requirements in detail. Best Regards, Team OSTronik India

@HeyAbhinav

Proposed component approach: Primary stage: Infineon ICE3RBR4765JG or TI UCC28740-based flyback controller, subject to power and footprint optimization. Secondary regulation: TL431 with optocoupler feedback for stable isolated outputs, with Schottky rectifiers and LC filtering. 3.3V rail: Low-noise LDO or synchronous buck post-regulation, depending on transformer output and thermal budget. Protection: Input fuse, MOV, NTC/inrush limiting, TVS protection, current limiting, and thermal shutdown. Non-isolated 5V/100mA rail: Compact offline buck stage using TI UCC28880 or an equivalent suitable controller. I will optimize the transformer, switching frequency, and PCB layout for the 25 × 55 mm footprint, low standby consumption, EMI performance, and safe mains isolation. Deliverables include complete KiCad files, Gerbers, drill files, BOM, three samples, test data, and assembly documentation. I can review your attached reference circuit and finalize component selection after checking its topology, output loading, and mechanical constraints. Best regards, Abhinav

@HimanshuDhiman26

Hello, I have reviewed your project requirements and the provided reference AC-DC power supply circuit. I can assist with the KiCad schematic, PCB layout, BOM, Gerber/drill files and design documentation for the compact 25 × 55 mm power supply. I understand the required outputs: 3.3V / 500mA 5V / 300mA 5V / 100mA I will carefully verify the circuit before PCB design, including component ratings, PCB isolation, creepage/clearance, protection components, thermal considerations and compact placement. I would propose completing the design in stages: 1. Schematic & component verification 2. PCB layout and design review 3. BOM + Gerber + drill files 4. Design/test documentation Bid: ₹12,500 INR Delivery: 30-45 days Prototype manufacturing, components, shipping and specialized laboratory testing such as EMI/EMC or safety certification can be finalized separately depending on the required facilities and standards. Before starting, I would like to confirm three points: •Is the actual input requirement 170–265VAC? The reference schematic shows 195–265VAC. •Is the 5V/100mA output required to be non-isolated/line-referenced, or isolated as shown in the reference schematic? •Will the EE13 transformer/core and winding specifications be provided? I am ready to discuss the reference circuit and project requirements before starting the design. Regards, Himanshu Dhiman

@rohannahar5

I have completed couple of IoT projects where one of the project had a similar requirement which you are looking.

@nehavaddellu

Hi, ​I can design, layout, and deliver your compact 25mm × 55mm triple-output AC-DC power module, including 3 fully tested physical samples within your target specs. ​For the topology, I will utilize a primary off-line flyback controller driving a compact custom transformer for the isolated 3.3V/500mA and 5V/300mA rails (shared ground), combined with an integrated non-isolated buck regulator for the 5V/100mA line-referenced supply. The high-density KiCad layout will strictly maintain necessary creepage and clearance distances to meet consumer safety standards within the tight footprint. Protection features will include a primary MOV surge network, thermal shutdown, output OCP/OVP, and Pi-filtering to ensure low ripple and EMI compliance. Components will be selected for high reliability, global stock availability, and minimal overall BOM cost. ​Deliverables provided upon completion: ​Complete KiCad schematic and PCB layout files ​Production-ready manufacturing package (Gerbers, NC Drill, Pick-and-Place, BOM) ​3 fully assembled and bench-tested physical prototype samples ​Comprehensive bench test report covering efficiency, ripple voltage, and thermal behavior under load ​Complete assembly and bring-up documentation for in-house reproduction ​I am available to review your mechanical housing requirements and get started immediately. Looking forward to discussing the project further!