PCB with 4 channels mosfet power switches

@MuhammadUzair16

Hi, I am an embedded systems engineer with over 16 years of experience designing compact PCB hardware for MCU-controlled power switching and consumer-grade products. I can create this KiCad board for the 4 output lines with SMD-only MOSFET switching on both conductors, PWM high=on control from the STM32 connector, suitable current sensing/control circuitry, input/output indicators, and the requested JST-SH and output pad placement within the 36 x 36 mm outline and 30.5 x 30.5 mm mounting pattern. My approach would be to first confirm the exact switching topology/current-limit behavior you want, then prepare the schematic, choose MOSFETs with proper margin for 5-13 V and 2 A operation, lay out the small board with practical thermal copper and clear connector/LED placement, and deliver the KiCad project with Gerbers, BOM, and assembly notes. A few quick points to confirm: should the current circuit provide measurement only to the STM32, or actively limit/shut down the selected output? Also, are the loads resistive, inductive, or mixed? Please contact me to discuss details.

@amelectronics

Hello, I can design this PCB professionally in Eagle CAD according to your requirements: • 4 independent MOSFET power-switch channels (switching both positive and negative lines) • Input voltage: 5V–13V DC • Maximum current: 2A per channel • PWM control inputs (S1–S4, HIGH = ON) • Current sensing/output for STM32 MCU • 1x JST-SH 1.0mm 7-pin connector (VIN/GND/CURR/S1/S2/S3/S4) • Green power LED • 4x Red output status LEDs • 2-layer PCB • All SMD components only (no DIP parts) • All components placed on a single side • PCB size: 36 x 36 mm • Mounting holes: 30.5 x 30.5 mm, Ø3 mm • JST connector on one edge, LEDs on second edge, output solder pads on opposite side Deliverables: ✔ Complete Eagle project files ✔ Schematic & PCB layout ✔ BOM (Bill of Materials) ✔ CPL/Pick-and-Place file ✔ Manufacturing-ready Gerber files You will receive everything required to place a direct order with PCB assembly manufacturers without any additional work. Feel free to share any preferred MOSFETs, current-sense requirements, or connector details, and I’ll optimize the design accordingly.

@mairajali11

As an Electrical/Electronics Engineer and Professional PCB Designer with 8+ years of experience which includes advanced exposure to KiCad, I believe I have the skillset you need for this project. Not only can I design and prototype your PCB, but my proficiency in STM32 microcontrollers proves valuable for interfacing it with your system. Combined with my extensive knowledge in Embedded Systems, Circuit Design, and Power Electronics, I can ensure efficient performance with the ability to handle a maximum current of 2 Amps. Furthermore, my portfolio showcases a strong track record in designing high-quality circuit boards using Eagle, Altium, KiCAD, and EasyEDA. So whether it's about maintaining compact dimensions or ensuring that no dip elements are used as you've requested, I guarantee adherence to the highest standards. Remember choosing me also means accessing the advantage of my additional skills such as MATLAB/SIMULINK & Python programming which come handy when dealing with real-time systems like your PWM control circuit. Plus, to top it all off, I am a Preferred Freelancer which puts me among the top 1% professionals in my field in terms of quality and reliability. Give me the chance and let's create something amazing together!

@engrusmanfaiz

Hello, I have extensive experience designing compact KiCad PCBs with MOSFET power switching and STM32 interfaces. I can design a 2-layer, single-sided assembly PCB within the 36 × 36 mm mechanical constraints. The board will include 4 PWM-controlled MOSFET output channels rated for up to 2 A each. A current-sense circuit will provide feedback to the external STM32 controller. All components will be SMD with no through-hole parts used. The JST-SH 7-pin connector, status LEDs, and output pads will be placed according to your layout requirements. Proper trace sizing, thermal management, and protection features will be incorporated. Deliverables include KiCad source files, schematic, PCB layout, BOM, and manufacturing files. Please confirm whether each channel requires switching of both positive and negative load lines or only one side.

@Adeel2k14

Hello, I can design this PCB in KiCad according to your specifications. I have extensive experience in PCB design, including MOSFET power switching circuits, current sensing, STM32 interfacing, power electronics, and compact multilayer layouts. I will deliver a fully manufacturable KiCad project with proper component selection, PCB layout, DRC/ERC checks, and production files. I have previously designed STM32-based control boards, energy monitoring systems, ESP32 hardware, and mixed-signal embedded electronics. I can optimize the design to fit within the 36×36 mm size requirement while maintaining reliable operation. Looking forward to discussing the project.

@ahsanfreelancer7

Hi, Hope you are well. It sounds like a great job and aligns with where I'd like to take my career. I'm eager to learn more. I have experience over the past fifteen years as a PCB Design Engineer at Global Engineering services and RWR Private Ltd. You can visit my freelancer profile page; https://www.freelancer.com/u/ahsanfreelancer7 I’ve been consistently committed to Specific goals, skills or traits the new job entails. Could we schedule some time to discuss about opportunity in more detail? I’d welcome the opportunity to learn more about the role and share how my skills and experiences would benefit you. I’m available to talk at any time. I look forward to speaking with you. Best, AHSAN ULLAH

@jimsufficiency

Hi, I’m an Embedded Systems and PCB Design Engineer with 6+ years of experience in power electronics, STM32-based systems, and compact KiCad PCB design. I can design the complete 2-layer PCB with four MOSFET-switched outputs, current-sense circuitry for STM32 monitoring, PWM-controlled switching, status LEDs, and the required JST-SH connector while meeting your mechanical constraints (36 × 36 mm board, 30.5 × 30.5 mm mounting pattern). Deliverables: • KiCad schematic and PCB files • 2-layer PCB with all components on one side • Current measurement output for external STM32 ADC • Manufacturing-ready Gerbers, drill files, and BOM • DRC/ERC-clean design • Design notes and pinout documentation I have experience designing compact high-current control boards, MOSFET drivers, and embedded power-management circuits. Timeline: 3–5 days I can start immediately and would be happy to discuss current-sensing accuracy requirements and whether low-side or high-side current measurement is preferred. Best regards, Jesutofunmi Embedded Systems & PCB Design Engineer

@leonidye

Hi, I will design a 4-channel MOSFET power switch PCB using KiCad, tailored to your mechanical layout and connector requirements. I have extensive experience in compact PCB design, MOSFET switching circuits, PWM-controlled power outputs, current sensing, STM32-compatible interfaces, LED indicators, and SMT-focused board layouts. For this project, I will design four output channels—controlled by PWM signals from an external STM32—that switch both the positive and negative lines. The design will also include current monitoring capabilities and ensure stable operation within a 5–13V power range. As requested, I will place a JST-SH 1.0mm 7-pin connector and power/status LEDs along one edge of the PCB, with solder pads for the four power outputs positioned on the opposite side. The design will adhere to the following specifications: a 36 × 36 mm form factor, 30.5 × 30.5 mm mounting hole spacing, 3 mm hole diameter, SMT-specific component selection, and appropriate trace widths to support a maximum current of 2A per active line. The final deliverables will include the KiCad schematic, PCB layout, Gerber files, drill files, a Bill of Materials (BOM), and basic design reference materials for connecting to an external STM32 MCU. Regards,

@engrhassanwali

Hello, I have seen your project details. I need to discuss more technical detail. You can inbox me for further discussion

@jitendracf

Hello, I can help you design this compact 4-channel MOSFET power switch board in KiCad and deliver manufacturing-ready files. I have 14+ years of experience in embedded hardware design, PCB layout, power electronics, and STM32-based systems. I regularly design compact mixed-signal boards with MOSFET switching, current sensing, PWM control, and production-ready layouts for assembly. For this project, I can: - Design a 36 × 36 mm PCB with 30.5 × 30.5 mm mounting pattern - Implement 4 independent high/low-side switched outputs (positive and negative line switching) - Add current measurement circuitry with analog output for your STM32 MCU - Integrate the JST-SH 1.0 mm 7-pin connector as specified - Place LEDs and connectors according to your mechanical requirements - Use only SMD components - Deliver complete KiCad project files, schematic, PCB layout, BOM, Gerbers, and assembly documentation Before starting, I would like to confirm: 1. Is current measurement required per channel or a single shared current-sense circuit (since only one channel is active at a time)? 2. What output voltage range should be expected at the current-sense pin? 3. Do you have preferred MOSFETs, or should I select suitable low-RDS(on) devices for up to 2 A load current? I focus on clean, manufacturable designs and can start immediately. Best regards, Jitendra Zala

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@hamzazayyad

Hello, I can design this PCB in KiCad and deliver a compact, production-ready solution that meets your mechanical and electrical requirements. With 15+ years of experience in PCB design, power electronics, STM32-based systems, and embedded hardware development, I can create a reliable 4-channel MOSFET switching board with current monitoring and STM32 interface support. Scope of work: • Design a 36 x 36 mm PCB with 30.5 x 30.5 mm mounting pattern and Ø3 mm mounting holes. • Four independent MOSFET-switched output channels capable of 5–13 V operation and up to 2 A per channel. • High-level PWM control inputs (S1–S4) from external STM32 via JST-SH 1.0 mm 7-pin connector. • Current-sense circuit with analog current feedback output (Curr) for MCU monitoring. • Green power indicator LED. • Four red output-status LEDs, one per channel. • JST connector placed on one PCB edge, LEDs on the opposite edge, and output solder pads positioned per your layout requirements. • All-SMD design with no through-hole/DIP components. • Proper trace sizing, thermal design, protection considerations, and DRC/ERC validation. Deliverables: • KiCad schematic and PCB source files • Manufacturing Gerbers and drill files • BOM and assembly drawings • PDF schematic and PCB documentation • Design review and support during prototype fabrication Best regards, Hamza STM32 Engineer | PCB Design | Power Electronics

@FranciscoSilvi

Hi There! As you can see in my portfolio on my profile, I have extensive experience designing PCBs and mass production equipment, just like you need. I can handle your project. I apologize for the simple proposal; I know you're probably tired of reading AI-generated proposals, and I'd rather not waste time on that. If you're interested in working with me, send me a message and we can work out the details!

@shivkantverma

Hi, Greetings.!! I am interested to work on your project. Please discuss design details. Looking forward to work with you. Thank you Shivkant

@abdurRafiqM

TK-6580A8-1HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq

@engrfarooq04

Hello, I am a Mechatronics Engineer with extensive experience in PCB design, power electronics, KiCad, STM32 interfacing, and MOSFET-based switching circuits. I can design your compact 36×36 mm PCB with 4 independent high-current power channels, PWM-controlled MOSFET switching, current sensing feedback, status LEDs, and the required JST-SH 7-pin interface. The design will be fully SMD, optimized for up to 2A per channel, and developed entirely in KiCad. I will deliver the schematic, PCB layout, BOM, Gerber files, assembly drawings, and source project files ready for manufacturing. A few technical questions: • Do you require high-side, low-side, or full H-bridge switching for each output? • What current measurement range and accuracy are required? • What PWM frequency range will the STM32 provide? I can start immediately and deliver a manufacturable design with careful attention to trace sizing, thermal performance, and signal integrity. Best regards

@sakshis576

As a seasoned professional in circuit design and electronics, I believe I possess the perfect blend of skills and experience for your project. My proficiency in PCB layout and KiCad is exceptional - crucial when creating a 2-layered board to contain the components you've noted. Furthermore, my solid understanding of embedded systems and algorithms can successfully implement the precise PWM control mechanism you're after for your four-channel MOSFET power switches. Notably, I'm accustomed to working with voltage supplies ranging from 5-13 volts for various projects, which ensures that I'll expertly handle yours. Additionally, my firm grasp of Electronic Design Automation tools will significantly optimize physical dimensions while incorporating all necessary elements - LED indicators, JST-SH connectors, and soldering pads - as per your strict requirements. Best regards, Sakshi masih

@azraazeen9

As an electrical engineer and skilled PCB designer, I am confident in my ability to not only meet but exceed your project expectations. My deep knowledge in circuit design and experience with designing complex power systems makes me the ideal candidate for the job of creating a PCB with 4 channels mosfet power switches. I fully understand the intricacies of utilizing PWM signals to control the mosfets, and how to create a current control circuit that perfectly interfaces with external STM32 MCU - all while maintaining a manageable size of 30.5 x 30.5mm, Φ3mm. Moreover, I have extensive experience working on projects with strict adherence to specific guidelines – an aspect that aligns perfectly with your requirements. For instance, I avoid the use of dip elements, which you specifically requested against. While I always use KiCad for my projects, as this aligns directly with your preferences. In addition to my technical skills, I am fluent in architectual designs and experienced in AI, 2D and 3D modeling which creatively informs my practical handling of projects. So not only will you be able to rely on me for delivering finely crafted electronics but also a board that is aesthetically pleasant and easy to interact with using carefully installed connectors and LEDs on specific sides. With highest standards of quality known from me I can assure you an exceptional Freelancing experience if chosen for this role.

@mahmoudralizadeh

I will design your compact 36x36mm PCB in KiCad using only SMD components. The board will feature 4 high-side/low-side MOSFET pairs for bidirectional switching, PWM control (active high), current sensing/protection circuit, one green power LED, and four red output LEDs. Layout will strictly follow your connector placement (JST-SH 7pin on one edge, LEDs on opposite edge, power pads on the third side) and 30.5x30.5mm mounting holes. Two quick questions: 1. Do you need high-side + low-side MOSFETs for each channel (full bidirectional control)? 2. What is the required current sensing method (shunt + amplifier)? I’m a professional PCB designer with 7+ years of experience in power electronics, motor drivers, and compact SMD boards. Many similar MOSFET switching and current-control projects successfully delivered. I can deliver the complete KiCad project (schematic, PCB layout, BOM, 3D view, and Gerbers) within 7 business days after receiving your final confirmation and any additional details. This includes: *3–4 days for schematic design and component selection *2–3 days for PCB layout and routing *1 day for final review, documentation, and output files