Circuit Design Jobs

Circuit Design is the process of designing electrical circuits to create a complete electronic system. A Circuit Designer is responsible for designing circuits, testing the board and components through simulations, troubleshooting any errors, and even prototyping the board by manufacturing a few before completing the entire circuit accurately. Through this intricate process, a Circuit Designer will be able to optimize the design with their expertise and creative talent to push out an efficient product.

Circuit Designers are knowledgeable engineers with a high level understanding of electronics engineering and components that can be used in a circuit. They also possess analytical skills as they must be able to calculate loads, power consumption and sophisticated circuit architecture that involves cause and effects to produce sound results. With extensive knowledge of hardware engineering, Circuit Designers are responsible for hardware selection, board sizing, and routing of signals.

Here's some projects that our expert Circuit Designer made real:

  • Automation systems built through electronic schematics
  • Electrical systems concepted through hand sketches
  • PCB designs implemented through industry standard software
  • High level radio networks designed through detailed concept papers
  • Power efficient circuits delivered with noise reduction features

These projects use both beginner and advanced electrical engineering techniques that our expert Circuit Designers are capable of delivering. With creativity, knowledge in engineering disciplines and product optimization experience, our Circuit Designers create reliable and innovative solutions for our clients’ projects.

We invite you to post your project on Freelancer.com so you can experience what our group of expert Circuit Designers have to offer. With their strong background in electronics engineering and creative problem solving, our freelancers can create dependable and optimized circuits for your project.

From 37,405 reviews, clients rate our Circuit Designers 4.81 out of 5 stars.
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    34 jobs found, pricing in USD
    Power switcher 20 hours left
    VERIFIED

    I'm seeking a highly skilled PCB designer to create a simple prototype for me. The ideal freelancer should have expertise in the following areas: - Simple circuit design - Prototyping - Knowledge of active and passive components like transistors, integrated circuits, resistors, capacitors, inductors. My prototype will utilize both active and passive components in balance. The importance of creating a simple but effective design can't be overstated. Your technical acumen will contribute greatly in honing this prototype for eventual evolution into a more complex device. Please, I’d appreciate a portfolio of past works that accentuates your proficiency in these areas.

    $441 (Avg Bid)
    Urgent
    $441 Avg Bid
    40 bids

    I require a proficient electrical firmware engineer for a moderately complex project. The candidate will be responsible for: - Developing firmware architecture - Integrating hardware with the newly established firmware Applicants must have substantial experience in the consumer electronics industry, demonstrating their ability to work with firmware on sophisticated electronics. A proven history of successfully integrating hardware and firmware in consumer electronics will be a essential for the successful completion of this project.

    $34 / hr (Avg Bid)
    $34 / hr Avg Bid
    10 bids

    I'm on the search for a PCB Designer who can create a PCB to run a hand heater - powerbank device. This device is being developed for a new enterprise. A main feature of this product - reading itself temperature to maintain one of the three modes to varying weather conditions. The device is designed with specific dimensions and requirements in mind and those information in attached files. The ideal professional for this assignment must have: - Proven experience with PCB design - Proficiency in designing PCB with one USB type-C port for in/out - Understanding of temperature-control for electronic devices Your insights will be highly instrumental in creating a product that provides continuous warmth. Let's produce something new together

    $235 (Avg Bid)
    $235 Avg Bid
    19 bids

    I'm working on a hobby project, for which I need a custom PCB design in Eagle CAD. The design complexity needs to be adaptable with my requirements, so flexibility is key. The board should accommodate a mix of both active and passive components. - Skills: Experience with Eagle CAD, knowledge of active and passive components, ability to adapt to changing requirements. - Experience: Prior experience designing complex PCBs for hobby projects preferred. Need the PCB design in next 5-6 hours. Only bid if you can do in this time. and budget : 30CAD

    $18 (Avg Bid)
    $18 Avg Bid
    4 bids

    I'm seeking a skilled PCB designer to create a prototype less than 4 square inches in size. The design involves SDRAM connected with STM32H750 MCU alongside an external Quad SPI Flash and a 50 pin TFT interface. Key Aspects: - Using Altium Designer, the selected software for the design - Ensuring prototype is suitable for future development Ideal Skillset: - Proficient in Altium Designer - Understanding of SDRAM, STM32H750 MCU, Quad SPI Flash, and TFT interfaces - Experience in compact PCB design - Strong understanding of prototyping methodologies for electronics Your proposal should include a plan of how you'd approach this task, relevant past experience, and a timeline for completion. Thank you!

    $101 (Avg Bid)
    $101 Avg Bid
    11 bids

    I'm searching for an electronic engineer with strong skills in PCB design using EasyEDA for manufacturing. The project involves: - Creating a double-layered PCB design - Integrating major components such as microcontrollers - Ensuring male and female header incorporation in the design Your experience with EasyEDA and PCB manufacturing will be crucial for successful project execution. Expertise in handling microcontrollers would be highly beneficial. Please make sure your bid reflects your proficiency in these areas. The design will have the following components: 1. JLCPCB part C5604725 2. Two 1 x 12 male headers (2.54 mm pitch, 22.86 mm (.9 inches) between headers). The board at will plug into these two male headers (the link shows the board having male headers but the ones I us...

    $149 (Avg Bid)
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    34 bids

    EXAMPLES OF WHAT I NEED ATTACHED I'm urgently seeking a qualified individual for a comprehensive electrical project. This entails creating a panel schedule, load analysis, and line diagram for a commercial project. The ideal candidate should possess the following: - Proficiency in creating panel schedules, load analysis, and line diagrams - In-depth knowledge of electrical components such as lighting fixtures, receptacles, and HVAC equipment. The project requires an immediate start and as such, a swift completion of the job is needed. Please be aware: - Initial estimations for the total load for the lighting fixtures are not yet available, leaving room for your professional contribution. Remember it's a commercial area, so proficiency in this area is preferred. This project...

    $183 (Avg Bid)
    $183 Avg Bid
    14 bids
    Urgent Radio PCB Design Task 5 days left
    VERIFIED

    I urgently need a skilled PCB designer to help me develop the perfect board for my radio project. Tasks include but are not limited to: - Producing a circuit control based PCB design - Ensuring the design is small in size. Ideal skills and experience: - Extensive experience in PCB design - Specialized knowledge in circuit control system - Past experience on similar sized projects. When applying, showcasing past work, your level of experience, and a detailed project proposal will significantly increase your chances of success. Please include all of these in your bid.

    $20 (Avg Bid)
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    8 bids

    As a tech enthusiast, I am seeking a seasoned professional in electrical and mechanical engineering to build a custom electric scooter. --Specifications-- • Top Speed: The scooter should reach a maximum speed of 25 mph. • Features: The scooter should have an integrated docking station for a cell phone. Please note, while not a requirement, if you can incorporate GPS tracking, Bluetooth speakers, or cruise control into the design, that'd be a welcome addition. • Range: The scooter should have a battery life that allows at least 40 miles per single charge. --Skills & Experience-- * Experience in designing and building custom electric scooters * Familiarity with the integration of modern tech features in transport devices * Knowledge of electrical systems, incl...

    $256 (Avg Bid)
    $256 Avg Bid
    15 bids
    Video Transceiver System 5 days left
    VERIFIED

    Design hardware for video transmission Range: 20 km Frame: 640x480, 30 FPS MCU: STM32H7 SD card storage Outcome: hardware, source code with documents

    $386 (Avg Bid)
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    11 bids

    I am in search of a knowledgeable individual to design an RF transmitter circuit compatible with the rx480e module at frequency 433MHz. Importantly, I need the transmitter circuit to be simple yet effective, with the capability to cover a long-range distance of at least 3km to 5km. With 4 chanel. Key Aspects: - Long-Range Communication: The transmitter circuit should be designed to work efficiently over long distances - a minimum of 3km. - Simple Design: The design needs to be as straightforward as possible, without compromising functionality. - Compatibility: The transmitter circuit must be compatible with the rx480e module. The Purpose: This RF transmitter circuit will be instrumental for a remote control system that is able to control a small relay and through that relay we can contro...

    $87 (Avg Bid)
    $87 Avg Bid
    9 bids

    Need someone to program and circuit a coin, bill, and card acceptor. We are setting up a water vending machine. It will be more like a gas pump that is for water. where you put money in, and the pump turns off when the amount is reached.

    $1099 (Avg Bid)
    $1099 Avg Bid
    25 bids

    As an electrical engineering student, I need assistance with an intermediate-level assignment on power converters in power electronics with the switched capacitor circuit. The freelancer's main responsibilities will be: - Problem-Solving: Help me figure out solutions to problems presented in the assignment. - Theory Explanation: Explicate theories related to power converters to promote my understanding of the subject matter. - Design and Simulation: Assist with the design and simulation of power converters. The perfect fit for this project would be someone with a strong understanding of power electronics, specifically power converters. Previous experience in academia or tutoring would be an additional advantage as they might be more prepared to explain complex theories clearly.

    $4 / hr (Avg Bid)
    $4 / hr Avg Bid
    11 bids

    I am on the lookout for an electronics and electrical engineering expert to design a 400W old type light dimmer circuit using BT136 TRIAC and DB3 diode. Key Requirements: - In depth knowledge of electronic circuit design - Must be able to use maximum SMD components - Experienced in working with the BT136 TRIAC and DB3 diode. - The final PCB dimensions should be exactly 17x33.5mm Project Specifics: - Both input and output voltage of the circuit should be 240V AC. - No specific safety requirements or certifications necessary for this project. Only apply if you are confident in your ability to meet above requirements. We aim for quality, so attention to detail is crucial.

    $79 (Avg Bid)
    $79 Avg Bid
    9 bids

    I am in need of specialized assistance with creating advanced level, comprehensive schematic diagrams for control circuits. Tasks: - Creation of new schematic diagrams, focusing on detail and technical complexity. Ideal Skills and Experience: - Excellent understanding of control circuits - Proficiency in eplan software - Experience in creating complex schematic diagrams - Ability to generate reports based on schematic data

    $281 (Avg Bid)
    $281 Avg Bid
    8 bids

    I am seeking an experienced electrical engineer to oversee the motor selection, wiring optimization, and minimization of electrical components for a small-capacity (1-10 kg/hr) liquid and solid food processing and dispensing machine. Your Responsibilities: - Assessing our current machine setup - Selecting suitable motors for improved efficiency - Optimizing wiring for safety and functionality - Minimizing the number of electrical components without compromising on system performance Ideal Skills: - Profound knowledge in electrical engineering - Experience in food processing equipment, particularly liquid and solid food dispensing systems - Understanding of safety standards in food processors - Efficient in troubleshooting and system optimization This could lead to a lon...

    $97 (Avg Bid)
    $97 Avg Bid
    7 bids

    As an individual looking to improve an existing circuit system, I'm searching for a proficient electronics engineer. Your expertise will be crucial in all aspects ranging from circuit design, PCB layout to firmware development. The specifics of the project involve: - Analyzing and refining the current circuit system - Redesigning the PCB layout for optimized performance - Firmware development for better functionality While you have the liberty to employ any CAD software - Altium Designer, KiCad EDA, Cadence Design Systems, or another of your preference, a strong proficiency and extensive experience in the use of these tools would be ideal. If you're someone who has a deep understanding of electronics, excels in problem-solving, and has a flexible approach to CAD software too...

    $12 (Avg Bid)
    $12 Avg Bid
    9 bids

    Desiring to elevate my intermediate knowledge on Allen Bradley RSlogix 5000 and Honeywell PLC, I am on the lookout for an experienced tutor able to cover topics such as: - Programming: Helping me understand core elements, tips, and guidelines essential for effective programming. - Troubleshooting: Teaching me powerful diagnostic methods and tactics to identify, analyse, and rectify both common and complex issues. - Hardware Components: Aiding me to grasp a heightened comprehension of the different hardware components. Ideally, the successful candidate will possess extensive hands-on experience and a solid educational background within PLC, preferably within a context of Process Control. You're expected to tailor the lessons focusing on Process Control applications. An instructor a...

    $32 / hr (Avg Bid)
    $32 / hr Avg Bid
    12 bids
    Schematic to KiCad PCB 3 days left
    VERIFIED

    I have a schematic diagram that needs to be converted into a PCB file using KiCad. so i dont need you to design the pcb, i just need to add footprints and library there so i can then move / edit/route them

    $16 (Avg Bid)
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    24 bids

    Hello, I look for a specific company that produced STM32F407 PCB with LAN and 485 ports about 2 years ago, the name of the persons were Ariel and Alan. If new candidates decided to participate, they have to prove that can develop complete embedded systems with STM32, Atmega, NXP, ESP32 as well PCB design, prototype and full production of assembled boards. I'll need the same team for forthcoming projects that I'll post here in Freelancer. The current requirement that will be used ONLY for proving skills: Short project for reading sms from SIM800L with ESP32 and search of a string with password inside the SMS. If password matches, ESP32 should send mail through wifi to given e-mail. C/assembler user for communication with GSM module, for e-mail can use Python. The work...

    $13 (Avg Bid)
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    9 bids

    We are seeking an experienced freelance engineer with expertise in modular UPS (Uninterruptible Power Supply) design. The project entails designing a complete modular UPS system with a 20kW bidirectional peak shaving-off power conversion system. Attached power specification and detailed job description below. Project Specifications: Power Capacity: 20kW Operation: Bidirectional Peak Shaving Conversion System: Modular UPS Deliverables: Schematics: Detailed electrical schematics showcasing the design of the UPS system. This should include: Power circuitry Control logic Safety mechanisms Input and output interfaces Bill of Materials (BOM): A comprehensive list of all components required for the UPS system. This should include: Part numbers Descriptions Quantities Suppliers Board Files: ...

    $1304 (Avg Bid)
    $1304 Avg Bid
    6 bids

    I need an Australian expert to draw up a Single Line Diagram (SLD) for a 24-volt system. The SLD is required for compliance documentation and needs to be highly detailed. (We will have continuous projects upcoming) Key Requirements: - Incorporation of detailed circuitry - Inclusion of component specifications - Provision of safety measures The SLD should adhere strictly to the National Electrical Code (NEC) and the Occupational Safety and Health Administration (OSHA) regulations. Ideal Skills: - Excellent knowledge of electrical diagrams - Familiarity with NEC and OSHA regulations - Attention to detail for circuitry and component specifications Your prior experience in creating SLDs for compliance purposes will be a strong advantage.

    $12 / hr (Avg Bid)
    $12 / hr Avg Bid
    15 bids

    I am seeking an experienced electrician to diagnose and rectify frequent tripping issues with two of my household's AFCI circuit breakers. This project requires: - Significant experience in residential electrical systems - Deep understanding of AFCI circuit breaker design and functionality - Capability to diagnose and amend underlying issues causing frequent tripping Although the problem might be straightforward for an expert, complete resolution is crucial, ensuring this inconvenience does not recur. Your expertise and professional attention to detail are essential for this task. Only looking for freelancers located in the Boston, Massachusetts, USA area.

    $511 (Avg Bid)
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    20 bids

    I'm looking to develop a vector controlled Variable Frequency Drive (VFD) for 3 phase, with 3x400VAC input and 9kW output. The focus of this project is creating a VFD that smoothly operates machine controls in an industrial environment. The ideal candidate will have understanding and experience in: - Designing and constructing VFDs - Familiarity with the variances between pump, fan, and conveyor controls, specifically machine controls - Experience in industrial machine operation The specific required control modes for the VFD are: - V/F Control - Sensorless Vector Control - Closed-Loop Vector Control Additionally, Modbus communication capability in the VFD design is essential. I expect the freelancer to deliver a reliable, effective solution that can seamlessly integrate into an ...

    $22 / hr (Avg Bid)
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    9 bids

    Desiring to elevate my intermediate knowledge on Allen Bradley RSlogix 5000 and Honeywell PLC, I am on the lookout for an experienced tutor able to cover topics such as: - Programming: Helping me understand core elements, tips, and guidelines essential for effective programming. - Troubleshooting: Teaching me powerful diagnostic methods and tactics to identify, analyse, and rectify both common and complex issues. - Hardware Components: Aiding me to grasp a heightened comprehension of the different hardware components. Ideally, the successful candidate will possess extensive hands-on experience and a solid educational background within PLC, preferably within a context of Process Control. You're expected to tailor the lessons focusing on Process Control applications. An instructor a...

    $23 / hr (Avg Bid)
    $23 / hr Avg Bid
    10 bids

    I'm seeking an adept freelancer to design a Proteus simulation for a room visitor counter. Project Details: - The counter must increase when someone enters the room and decrease when someone exits. - The simulation should utilize an IR sensor as the core component. - The visitor count should be displayed on a seven-segment display. - The system should be capable to count up to a maximum of 100 visitors. Skills and Experience: - Proficiency in Proteus software - Strong understanding of electronics, particularly resistors, capacitors, and integrated circuits - Proficient in using IR sensor in circuit design - Experience in designing displays, especially seven-segment type. Your expertise in these areas will ensure an efficient and effective completion of this project.

    $24 (Avg Bid)
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    14 bids

    I'm seeking an expert in power electronics simulation, specifically in control system simulation and PI controllers. Ideal skills and experience for this role include: - Demonstrated experience in power electronics and control system simulation - Proficiency in implementing and tuning controllers - Ability to explore, and potentially enhance different elements of the controller simulation - Capacity to work independently and problem-solve effectively

    $66 (Avg Bid)
    $66 Avg Bid
    12 bids

    I require an intermediate-level assessment in Electrical Engineering with a focus on Electrical and Electronic Engineering - Skills: Deep understanding and experience in Power Systems within the field of Electrical Engineering. - Level: Comfortable with intermediate concepts and scenarios. - Task: Thorough evaluation of my knowledge base with the aim to identify gaps and areas for improvement. - Experience: Proven track record doing assessments in similar context will be favoured, demonstrating ability to deliver constructive feedback. This is a great opportunity for an experienced Electrical Engineer specialising in Power Systems to exercise assessment skills.

    $117 (Avg Bid)
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    19 bids

    I'm seeking an experienced electrical engineer to participate in the circuit design phase of a home automation project. Your main task includes: - Designing the circuitry and wiring for a modern home automation system I anticipate the project's complexity to be at an intermediate level. You should be familiar with microcontrollers, particularly Arduino or Raspberry Pi. Demonstrated experience in home automation systems will be highly regarded. Having a solid understanding of good circuit design principles, strong problem-solving skills and the ability to work independently are essential for this role. Thanks for considering my project. I look forward to working with you.

    $25 (Avg Bid)
    $25 Avg Bid
    10 bids

    Desiring to elevate my intermediate knowledge on Allen Bradley RSlogix 5000 and Honeywell PLC, I am on the lookout for an experienced tutor able to cover topics such as: - Programming: Helping me understand core elements, tips, and guidelines essential for effective programming. - Troubleshooting: Teaching me powerful diagnostic methods and tactics to identify, analyse, and rectify both common and complex issues. - Hardware Components: Aiding me to grasp a heightened comprehension of the different hardware components. Ideally, the successful candidate will possess extensive hands-on experience and a solid educational background within PLC, preferably within a context of Process Control. You're expected to tailor the lessons focusing on Process Control applications. An instructor a...

    $20 / hr (Avg Bid)
    $20 / hr Avg Bid
    11 bids
    EAGLE Project - PCB Redesign 1 day left
    VERIFIED

    I am looking for a professional freelancer who is familiar with EAGLE because my PCB project was done in it. A minimal redesign on the PCB is needed since the I2C is not working, and it is not possible to perform a Scanner due to poor wiring of the PCB by the previous freelancer. Only professional freelancers should contact me. The new project can also be done in other software like KiCad, Altium, or again in EAGLE. Thank you in advance.

    $136 (Avg Bid)
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    43 bids

    I need a detailed and optimized design for a PCB motor. The key specifications are: - The motor configuration should fit within 250mm OD and 170mm ID circle dimensions. - The motor should be battery-powered, maintaining an ideal balance between energy consumption and power output. - The motor's primary application will be for electric vehicles. Thus, it should be durable, reliable, and efficient. - Ideally, the motor should run at a medium RPM range (1000-5000). Freelancers with experience in motor design, knowledge of PCB electronics, and proficiency with battery-power systems are strongly preferred. A familiarity with electric engine applications would also be highly advantageous. Let's create an efficient and powerful motor design that fits perfectly within the given dimensi...

    $337 (Avg Bid)
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    17 bids
    I need a power electronics expert. 3232 days left
    VERIFIED

    I am in need of a power electronics expert who specializes in power converters. I have specific requirements for this project and need it to be completed as soon as possible. Skills and experience needed: - Expertise in power converters and power electronics - Strong knowledge of power semiconductor devices - Experience in power system analysis - Ability to work quickly and efficiently to meet tight deadlines

    $10 / hr (Avg Bid)
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    29 bids

    Necesito un timbre para un colegio que funcione en base a un Arduino UNO, un display de 16x2 con interface I2C, un reloj de tiempo real RTC3231 el cual estará encargado de guardar la hora, fecha y los timers de cuando sonará la alarma durante cada día, pulsadores UP / DW para programar los días, horas, minutos y también los segundos en que la alarma o timbre sonará. Pulsadores para confirmar la fecha, hora, minutos y segundos de programación. Debe sonar por lo menos en 6 períodos por día (entrada y salida del colegio, en los recreos o breaks, comienzo y termino de cada período de clase). El Arduino debe activar un relé el cual activará un timbre. El Arduino también debe tener una salida para poder a...

    $70 (Avg Bid)
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    16 bids

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