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I am looking for an experienced automotive electronics and PCB design engineer to create a complete prototype PCB for controlling two independent brushed DC motors in a 12 V automotive environment. This project covers hardware design only. No firmware, bootloader, desktop GUI, mobile application, or enclosure design is required. MAIN REQUIREMENTS - Two independent reversible brushed DC motors - One full H-bridge per motor with four external N-channel MOSFETs; eight bridge MOSFETs total - 10 A target continuous current per motor after thermal validation - 20 A for up to 1 second and 30 A start/stall peak for up to 100 ms - Independent 20 kHz PWM, forward, reverse, coast, and active brake - Independent bidirectional current measurement and fast hardware overcurrent shutdown - CAN FD with Classic CAN compatibility and LIN 2.x - USB-C service interface - Three protected analog inputs for buttons connected to GND - Two optional Hall-sensor inputs with protected 5 V supply - Battery-voltage measurement and two power-stage temperature sensors - Reverse-battery and automotive transient protection - Low-power sleep and wake hardware FIXED MAIN COMPONENTS - STM32G0B1CBT6 MCU - Infineon TLE9562-3QXJ automotive motor SBC - 8 x IAUC120N04S6N013 automotive MOSFETs - 2 x INA240A2-Q1 current-sense amplifiers - 2 x 0.5 mOhm Kelvin current shunts - TLV3202-Q1 hardware window comparators - Aptiv HCCPHPE24BKA90F sealed 24-position right-angle connector - USB-C service connector The main Aptiv connector and its fixed pinout must not be changed. PCB REQUIREMENTS - Native KiCad project - Four-layer FR-4, 1.6 mm - 2 oz outer copper and minimum 1 oz inner copper - Desired PCB size 65 x 50 mm or smaller; hard maximum 70 x 50 mm - Correct high-current and thermal design - Kelvin routing for both current shunts - Short MOSFET gate-drive loops - Proper separation of power, analog, CAN/LIN, and USB circuits - Zero unresolved ERC/DRC errors and zero unrouted nets REQUIRED DELIVERABLES - Complete editable KiCad schematic and fully routed PCB - Project-specific symbols, footprints, and 3D models - Schematic PDF and complete BOM with exact MPNs and alternatives - Gerber X2, drill, pick-and-place, assembly and fabrication drawings - Populated PCB STEP model - MCU pin-allocation table - Connector and harness pinout drawings - Current, power-loss, TVS, gate-drive, and thermal calculations - ERC/DRC reports - Hardware bring-up and prototype test procedure - Final release ZIP ready for prototype manufacturing A detailed 16-page hardware specification is attached. IDEAL FREELANCER Please provide examples of similar automotive, motor-control, or high-current PCB projects. Explain your experience with currents above 10 A, MOSFET H-bridges, CAN/LIN, current sensing, automotive protection, and KiCad. Please confirm that you will deliver the complete editable KiCad source project, not only Gerbers or PDF files. The PCB is Prototype A0. Automotive, EMC, thermal, vibration, and 30 A performance must not be described as physically validated until prototype testing is completed. Expected delivery: 4 to 6 weeks.
Project ID: 40666127
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31 freelancers are bidding on average $1,988 USD for this job

As a seasoned engineer with a strong focus in electrical circuit design, I believe I would be an excellent fit for your Automotive Dual Motor Controller PCB project. My previous experiences include designing high-current PCBs for automotive environments, utilizing MOSFET H-bridges, implementing CAN and LIN interfaces, plus ensuring proper current sensing and automotive protection. Moreover, I've had in-depth experience with KiCad and already have numerous design best-practices on-hand to address your requirements in a timely manner. In addition to my design expertise, I'm fully committed to delivering editable KiCad source projects that meet your exact specifications. This means you'll have complete control over the design allowing revisions or expansions at any point. It's also worth noting that my proficiency isn't exclusive to designing the PCB but extends to producing optimized firmware for seamless integration into larger systems. With successful completion of this project, you can expect well-documented deliverables including extensive validation reports that precisely calculate power-loss for strict adherence to the voltage requirements. Lastly, having delivered efficient solutions on-time and within budget throughout my career stands as testament to my discipline and diligence in achieving project goals.
$1,500 USD in 5 days
7.9
7.9

Hi, I am an embedded systems engineer with over 16 years of experience designing high-current motor-control electronics and taking products from concept through prototype and production. I have worked with MOSFET H-bridges above 10 A, Kelvin-routed current sensing, hardware overcurrent protection, CAN/LIN interfaces, automotive transient protection, and thermally constrained multilayer PCB layouts. I will first verify the specification, fixed connector pinout, power-loss margins, gate-drive behavior, protection thresholds, and component availability. I will then complete the KiCad schematic and four-layer layout with careful power/analog partitioning, short gate loops, thermal copper design, and manufacturing checks. The release will include calculations, BOM, fabrication and assembly outputs, STEP model, pin-allocation and harness documentation, ERC/DRC reports, and a practical bring-up/test procedure. I confirm delivery of the complete editable native KiCad project, including project libraries and models—not only Gerbers or PDFs. EMC, thermal, vibration, and 30 A performance will be identified as design targets pending physical Prototype A0 validation. Relevant automotive and motor-control work is private and cannot be posted publicly, but I can show suitable examples privately. I can deliver within the requested 4–6 weeks. Please contact me to discuss the specification and project details.
$2,300 USD in 42 days
7.6
7.6

As an experienced automotive electronics engineer specializing in motor control and PCB design, I have a wealth of relevant skills and expertise that aligns perfectly with your project's needs. Over my career, I have successfully designed and implemented several high-current PCB prototypes with components similar to the ones specified for your project. My solid grasp of power electronics, including MOSFET H-bridges and current sensing, will play a vital role in ensuring implementation meets your desired goals. One of my standout qualities as a freelancer is thoroughness in delivering on client expectations. Your requirement for a native KiCad project is well within my comfort zone, having executed numerous projects on this platform before. I always ensure zero unresolved errors as well as efficient separation of circuits on my designs, all inline with what you're looking for. You can also rely on me for prototypes that are not only structurally sound but also optimized for automotive environmental challenges such as thermal and EMC concerns. Finally, I understand the need for tangible proof of capability. For that reason, I have attached samples of similar automotive projects I've worked on in the past for your review. With all that said, by choosing me, you'll be getting not just an expert in circuit design and layout but also a passionate perfectionist dedicated to delivering top-quality work within the stipulated timeframe.
$1,500 USD in 40 days
7.5
7.5

Hi, I’m interested in this project. I have 10+ years of experience in automotive/industrial electronics, KiCad PCB design, STM32, CAN/LIN, power electronics, and high-current motor-control hardware. I understand the critical areas here: dual N-MOSFET H-bridges, 10–30 A current levels, Kelvin current sensing, short gate-drive loops, thermal management, automotive transient/reverse-battery protection, CAN FD/LIN, and strict PCB size limits. I can work with the fixed components and Aptiv connector pinout and deliver the complete editable KiCad project, including schematic, routed 4-layer PCB, BOM, Gerbers, P&P, drawings, STEP model, calculations, ERC/DRC reports, and bring-up procedure. I will clearly distinguish design calculations from physical automotive/EMC/thermal validation, which can only be confirmed after prototype testing. KiCad: Advanced Timeline: 4–6 weeks Availability: Can start immediately. I’d be happy to review the 16-page specification and discuss the A0 architecture before starting.
$1,590 USD in 6 days
6.9
6.9

Hi there, I have carefully reviewed your Dual-Channel Automotive Brushed DC Motor Controller specification and understand that this is a **hardware-only Prototype A0**, requiring complete native KiCad sources and manufacturing documentation. With nearly five years of experience in mechatronics, power electronics, STM32 hardware, MOSFET motor control, CAN/LIN interfaces, current sensing, automotive protection, and multilayer PCB design, I can handle the complete schematic and 4-layer PCB around the STM32G0B1, TLE9562-3QXJ, eight IAUC120N04S6 MOSFETs, INA240 current sensing, and hardware overcurrent protection. I am comfortable engineering the **10 A continuous / 20 A overload / 30 A startup peak** current paths, including Kelvin shunts, gate-loop optimization, TVS/reverse-battery protection, copper/via thermal calculations, and safe hardware shutdown. These limits will be documented as design targets until physically validated on Prototype A0. I confirm that I will deliver the complete editable KiCad project, libraries, STEP models, calculations, ERC/DRC reports, and manufacturing package—not only Gerbers or PDFs. Please send me a message so we can discuss the prototype manufacturer, thermal assumptions, and project milestones. Best regards, Samuel tshibangu
$2,000 USD in 2 days
6.5
6.5

Based on my experience as a creative designer, 3D artist and web developer, I have gained in-depth skills that are directly applicable to your project. For instance, my fluency in advanced creative software such as KiCad gives me the dexterity to not only create but also manipulate editable source documents perfectly aligning with your requirement. Moreover, my familiarity in dealing with large sums of data in engineering projects assures accurate documentation that goes hand in hand with the complexity of PCB designs. Regarding your expectations of quality and time management, I assure you of a top-notch delivery within the stipulated timeframe of 4 to 6 weeks. On various past projects, I have consistently demonstrated these attributes through a combination of fast communication alongside paying keen attention to detail; ensuring project milestones are met without compromising quality. In terms of offering you a competitive edge, in addition to my broad-spectrum proficiencies, I am efficient in integrated AI-powered creative solutions which can immensely improve and automate several parts of the process for you. This includes content generation and even aspects such as thermal validation calculations which could be sped up using AI algorithms. Thus, With me, you get more than just a PCB designer but an innovative researcher available to put their skills at your disposal for remarkable outcomes.
$1,520 USD in 2 days
5.5
5.5

For a Automotive Dual Motor Controller PCB - KiCad, CAN FD & LIN, the hard part is balancing sensor scanning accuracy, battery life, Bluetooth/SIM fallback, and OTA-ready embedded reliability. I've handled similar builds involving Electronics, Microcontroller, Electrical Engineering, PCB Layout, usually where the important part was translating the brief into a reliable working system. My approach would be to validate the sensor matrix and power budget first, then design the acquisition PCB, embedded firmware, connectivity fallback, and OTA/admin controls in staged prototypes. For this project, I would focus especially on: - Sensor front-end, matrix scanning strategy, MCU selection, and PCB layout - Battery/power budget, Bluetooth setup, SIM fallback, buffering, and geolocation - OTA firmware, remote activation/deactivation, ownership reset, and admin controls If helpful, I can outline the sensor-to-cloud prototype plan and PCB/firmware risk checklist before committing to the full board. Best, Dr. Syafiq
$2,000 USD in 21 days
5.3
5.3

HI, 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
$1,800 USD in 7 days
5.3
5.3

https://www.freelancer.com/projects/telecommunications-engineering/Voice-Gateway-With-DTMF.html https://www.freelancer.com/projects/circuit-design/Raspberry-HAT-for-Transmission Have done similar tasks. Lets connect in the chat to discuss more about the work.
$2,000 USD in 7 days
4.9
4.9

Hi, I've reviewed the full Rev. 1.0 spec in detail-fixed components, J1 pinout/mirroring risk, hardware overcurrent architecture, and the two-gate review process. I can execute this as written, no clarification needed on architecture. I've built automotive/industrial motor-control boards above 10 A, including H-bridge stages on automotive MOSFETs, Kelvin-connected shunt sensing into dedicated current amps, and hardware overcurrent trips wired directly to MCU timer break inputs-not firmware-dependent, as specified here. I've also worked with combined CAN FD/LIN SBCs, gate-charge-calculated bootstrap/charge-pump sizing, and automotive protection against reverse battery, load dump, and ISO 7637-2/16750-2 transients. For J1, I'll build the footprint strictly from Aptiv drawing FSC 308654, verify against a 1:1 print, and deliver both mating-face and wire-side pinout drawings before layout freeze. All work is native KiCad-full schematic, routed PCB, project-specific libraries, STEP model, no absolute paths, no PDF-only deliverables. You'll get the full manufacturing package, MCU pin table, calculation reports, ERC/DRC with zero unresolved issues, and a bring-up procedure-with no automotive/EMC/30 A validation claims beyond what bench testing confirms. Ready to start immediately; can share prior H-bridge/current-sensing examples on request.
$1,500 USD in 10 days
3.9
3.9

I reviewed your project details and understand that you need a complete Prototype A0 hardware design in KiCad for two independent 12 V brushed DC motor channels, with high-current H-bridges, bidirectional current sensing, CAN FD/LIN, automotive protection and a compact 4-layer PCB. Deliverables Complete editable KiCad schematic and PCB project 2 independent N-MOSFET H-bridges using the specified components 10 A continuous / 20 A short-duration / 30 A peak designmit Project-specific symbols, footprints and 3D models Complete BOM with exact MPNs and alternatives Gerber X2, drill, pick-and-place and fabrication/assembly drawings Populated PCB STEP model MCU pin-allocation and fixed Aptiv connector pinout documentation Current, power-loss, TVS, gate-drive and thermal calculations ERC/DRC reports with zero unresolved errors and unrouted nets Hardware bring-up and prototype test procedure Final manufacturing-ready ZIP My approach will prioritize short high-current paths, thermal management, controlled gate-drive loops, Kelvin sensing The proposed workflow is architecture/pinout review → schematic → PCB stack-up/layout → routing → simulation/calculations → ERC/DRC → manufacturing package → bring-up documentation, targeting the requested 4–6 week timeframe. Best regards, Sidra
$1,500 USD in 2 days
2.6
2.6

With 5+ years of experience in automotive electronics, power electronics, and KiCad PCB design, I can design the complete Prototype A0 hardware for your dual independent 12 V brushed DC motor controller. I understand the scope is hardware only and includes no firmware, GUI, bootloader, or enclosure design. I can work within your fixed component requirements and preserve the Aptiv HCCPHPE24BKA90F connector and its specified pinout. My design approach will cover the complete schematic and a compact 4-layer KiCad PCB, with particular attention to Two independent external N-MOSFET H-bridges using all 8 specified IAUC120N04S6N013 MOSFETs 10 A continuous per motor, with design calculations for the specified 20 A/1 s and 30 A/100 ms conditions Short, low-inductance MOSFET gate-drive loops Kelvin sensing for both 0.5 mΩ shunts and INA240A2-Q1 routing TLV3202-Q1-based fast hardware overcurrent protection Proper power-stage, analog, CAN FD/CAN, LIN, and USB-C partitioning Automotive reverse-battery and transient protection Battery measurement, temperature sensing, sleep, and wake circuitry Final deliverables will include the complete editable native KiCad source project, including custom symbols, footprints, and required 3D models—not just Gerbers or PDFs I can follow your expected 4–6 week delivery timeline and work through defined review milestones to ensure the design stays aligned with the 16-page hardware specification.
$1,500 USD in 5 days
2.4
2.4

I have experience with automotive electronics and PCB design, including high-current motor-control circuits, MOSFET H-bridges, current sensing, CAN/LIN communication, automotive protection, and KiCad-based hardware development. For this project, I can develop the complete editable KiCad schematic and PCB layout with careful attention to high-current paths, Kelvin sensing, thermal management, gate-drive loops, EMC-conscious routing, and separation of power and signal domains. I’ll also provide the BOM, calculations, manufacturing files, drawings, ERC/DRC reports, and bring-up documentation required for the A0 prototype. I can work within the 4–6 week target and will clearly distinguish design calculations and simulations from anything that requires physical prototype validation.
$1,500 USD in 7 days
0.0
0.0

Hey , I just went through the project description, and I see you are looking for someone experienced in Electronics, Automotive Engineering, Circuit Design, Embedded Systems, PCB Layout, Electrical Engineering, Prototyping, Signal Processing, Motor Control and Microcontroller. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Regards, Ali .
$1,500 USD in 5 days
0.0
0.0

I will design a dual motor controller PCB for two brushed DC motors, and I will start by selecting the MOSFETs. I will use KiCad for the PCB layout and circuit design. For each motor, I will implement a full H-bridge using eight external N-channel MOSFETs, chosen for their ability to handle the 10 A continuous and 30 A peak current requirements, and I will select heatsinks sufficient for thermal validation at 10 A. The PWM frequency will be set to 20 kHz for independent control of forward, reverse, coast, and active brake functions for each motor. Bidirectional current measurement will be achieved with shunt resistors and dedicated current sense amplifiers, feeding into a microcontroller for overcurrent shutdown. I will route the CAN FD bus using appropriate termination resistors and differential pair routing and also include the LIN interface. The microcontroller will be chosen for its embedded systems capabilities and suitable peripherals. I will build the H-bridge circuits first because their power handling is the most critical component for the motors. What is the expected latency for the hardware overcurrent shutdown? Track record on here: 100% on time, 100% on budget, 5.0 across 8 reviews. Provide the microcontroller part number.
$2,172 USD in 21 days
0.0
0.0

Hi, Aashiq here from Cape Town, South Africa. This project instantly caught my eye, so I had to reach out. I see you’re looking for a complete prototype PCB design for controlling two independent brushed DC motors in an automotive environment, focusing on requirements like high current handling and CAN FD compatibility. I’ve worked extensively on automotive PCB designs, helping clients achieve robust and efficient motor control solutions. My experience includes designing high-current circuits and implementing reliable protection mechanisms, ensuring seamless operation under demanding conditions. I can share successful project samples that align with your needs. Based on what you mentioned, here is how we would approach the project: - Develop a four-layer KiCad schematic and layout. - Ensure proper thermal and current handling design. - Execute thorough ERC/DRC checks for flawless outputs. You can expect clear communication throughout the project, with a focus on delivering a user-centered solution optimized for performance. Best Regards, Aashiq
$2,250 USD in 7 days
0.0
0.0

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