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 41,074 reviews, clients rate our Circuit Designers 4.85 out of 5 stars.
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    32 jobs found, pricing in USD

    I'm in need of a skilled PCB designer to support the development of a prototype that will serve a very specific purpose. This project will require skills in microcontroller integration and resistor and capacitor design. Key Project Features: - My primary need involves the design and development of a custom PCB that will implement the microcontrollers and resistors/capacitors. - An integral function of the prototype will be wireless connectivity, thus a sound understanding of wireless tech is essential. Ideal Experience: - Extensive PCB design skills - Expertise in microcontrollers and resistors/capacitors design. - Experience in wireless technology integration in PCBs. Success in this task is the delivery of a well-functional, prototype PCB that meets these specifications. Looking...

    $687 (Avg Bid)
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    16 bids

    I'm in need of a proficient engineer or technologist to create a specific circuit board design. This circuit board needs to cut off power supply from a 6 volts DC battery when a push-pull solenoid is activated. The solenoid's primary function is controlling a mechanical device. Key Specifications: - The solenoid involved must be designed with a specific travel distance of 1-3 inches. - Comprehension of solenoid operation and circuit design is crucial. - Skills in designing electronics that interface with mechanical devices are a big plus. In your proposal, please highlight your experiences with solenoid control systems and tell me how they relate to this project. I look forward to hearing from you!

    $140 (Avg Bid)
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    19 bids

    Looking for an expert in ESP32 with good expertise in Arduino Coding. I will share work details in chat

    $20 (Avg Bid)
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    4 bids
    Simple PCB Design -- 2 6 days left
    VERIFIED

    I need a PCB designed for a prototype project. The PCB should be single-sided and include components as shown in the attached document. Please Don't bid If your budget exceeds 800 INR. Please Don't bid If your delivery time exceeds 24 Hour. Please include in your proposal any relevant experience and a basic outline of your approach to this project. I'm open to discussing the specifics of the project further with the selected freelancer.

    $12 (Avg Bid)
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    11 bids

    For my project, I need a professional who can design an electronic circuit for me that is capable of timing. I'm particularly interested in a circuit that can count up. Due to the nature of this project, I don't need any additional extras such as LED Displays or Alarm sounds, it's a straightforward count-up timer I'm after. Ideal Skills and Experience: - Extensive knowledge and experience in electronic engineering - Expertise in timer circuit design - Excellent problem-solving skills - Experience with electronic circuit design software.

    $125 (Avg Bid)
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    32 bids

    I am looking to develop a frequency amplifier specifically designed to improve AM radio signals in an outdoor context. This system should be able to significantly enhance audio quality and strength of the signals. Skillsets & Experience: - Expertise in radio frequency (RF) engineering - Previous experience designing frequency amplifiers, especially for AM radio - Knowledge on outdoor environmental factors influencing AM signal - Ability to propose and implement solutions for signal interference in outdoor settings Automatic TX/RX switching TX Power 35 dBm (3.5W) RX gain 20 dB Max. Input TX Power 21 dBm Min. Input TX Power 6 dBm Max. Input RX Power -13 dBm Power supply +5V DC 700-1050 MGh І 2400-2485 MGh Deliverables: - A reliable frequency amplifier that boosts AM radio signal...

    $16 / hr (Avg Bid)
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    17 bids

    I'm searching for an experienced engineer specialized in impedance sensors design and integration with micro-controllers. I aim to build a sensor that specifically monitors low voltage electrical signals, ranging from 0-5V. Key Details: - The primary function of the designed impedance sensor would be to monitor electrical signals primarily, with a focus on low-voltage ranges (0-5V). - This sensor would need to be integrated with analog devices. - Possess strong background in Electrical Engineering or related fields - Solid experience with analog devices & low voltage impedance sensor design is a must. The ideal candidate should have proven experience in similar projects. Mastery of impedance sensor building, ability to work with micro-controllers is important. This is an exce...

    $394 (Avg Bid)
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    23 bids

    I'm in need of a dual voltage power supply transformer for an existing business. Key Requirements: - The first transformer will be designed to work up to 5W. - The second transformer should be capable of switching on up to 4kW. - The first transformer must have the capability to switch off the second one. - This project needs to be completed within a month. Ideal Freelancer: - I am seeking a freelancer with prior experience in power supply transformer design. - The individual must be capable of designing transformers with varying power outputs. Your application should therefore focus on demonstrating your experience in this area.

    $169 (Avg Bid)
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    15 bids

    I'm experiencing supply voltage fluctuations in an RS485 circuit that I designed for an industrial automation project. Key Requirements: - Schematic Improvement: I need an expert to suggest a modified schematic that will effectively solve the supply voltage fluctuations. The new design should ensure a stable and reliable power supply for the entire RS485 network. Ideal Skills and Experience: - Proficiency in RS485: Strong understanding and experience in working with RS485 networks is essential for this project. - Industrial Automation Background: Prior exposure to industrial automation projects will be highly beneficial, as this will help you understand the specific requirements and challenges in this context. - Schematic Design: Experience in circuit design and the ability to rewor...

    $73 (Avg Bid)
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    4 bids

    We need an expert in the selection of high-current DC-DC converters for managing power in a robot. Do you have a lot of experience with DC DC Converters? I mean the chips come from TI or Infineon Product Specifications Power Supply Voltage: DC 24-52 V Output Voltage: DC 5 V, DC 12 V, DC 24 V, and 48 V Dimensions: TBC Weight: Approx. TBC Maximum Input Current: 200A Output Current: 2x 24VDC 40A, 1x 24VDC 20A, 1x 48VDC 40A, 1x 19VDC 10A, 1x 12VDC 20A, 1x 5VDC 10A, We developed it for our Robot Input is 0-60VDC 200A Some factors are required such as small size, high performance, absolute safety (Smart PCBA) What is a recommendation of the TI chip you would use? FYI: LM5170-Q1 is my research. It can not be working with high-current

    $326 (Avg Bid)
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    5 bids

    I require a skilled circuit designer to create a detailed schematic for a simplified game of black jack, ideal for professional circuit designers. The game is to be developed using: - buttons and levers - 7-segment LED display - 74HC193/2 (counter) - 74HC00/20/04/08 - 74HC85 - 74HC283 - 74HC74 - 74HC173 - 74HC148 - Connecting wires - A clock Deliverables: 1. Detailed Schematic: The schematic should include detailed component specifications, clearly showing the functionality of each component in the game. Ensure everything is labeled properly. 2. Operational explanation: Along with the schematic, provide a brief explanation of how the system operates. 3. Specific region: A clear indication of the purpose of a specific region, enabling another professional designer to understand and re...

    $111 (Avg Bid)
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    20 bids

    I am seeking someone with expert knowledge in electronic circuit board (ePCB) design to support my project. My requirements are geared towards integration of sensors and drivers, and control system design. Scope of the project: - Design the layout of an ePCB for a control system with three major functionalities, namely on/off control, timing control, and sensor & driver integration. - The control system will consist of temperature and motion sensors, 2 12V solenoids, and a stepper driver requiring integration. - The system should also support an LCD display. Who you are: - Ideally, you have a strong background in electrical engineering or a related field. - You have considerable experience designing ePCB layouts for custom applications. - You understand concepts of control system...

    $138 (Avg Bid)
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    30 bids
    Mixed-Signal ASIC Designer 4 days left
    VERIFIED

    I'm looking for a talented professional to design a mixed-signal ASIC for data processing, with a primary focus on ensuring that the communication interface supports a data rate of up to 1 Gbps. Key Responsibilities: - Design a mixed-signal ASIC with a strong emphasis on data processing capabilities. - Ensure that the communication interface of the ASIC supports a data rate of up to 1 Gbps. Ideal Skills and Qualifications: - Proven experience in designing mixed-signal ASICs - Strong background in data processing - Familiarity with communication interfaces supporting high data rates - Prior experience with ASICs in the realm of communication interfaces would be considered a strong advantage. Your expertise in these areas will be vital in ensuring the successful design and implemen...

    $19 / hr (Avg Bid)
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    16 bids

    I am in need of a proficient PCB (Printed Circuit Board) design expert to help me develop an effective tracking system. This task involves the integration of specific key components, each playing a crucial role in the operations of the system. The PCB needs to be small enough to be able to fit inside a ping-pong ball. Key Components: • Accelerometer: It will predominantly measure movement. Given the nature of this tracking system, it's worth noting that a low accuracy level (within 10%) is acceptable for this specific component. • RFID Transponder: A key component for tracking, the system is expected to loyally and accurately read data from the RFID tags. • Battery and Battery Charger: An integral part of ensuring the tracking system maintains functionality. •...

    $41 (Avg Bid)
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    10 bids

    I am in urgent need of an electrical engineer who can explain all parameters of the GE T60 differential relay. Key Points: - I specifically need a comprehensive explanation regarding the control power supply, differential current pickup, and differential current slope. - I am in a hurry, so the work needs to be completed quickly. - I have a concern specifically related to relay settings that I would like the engineer to address. Ideal Skills and Experience: - Proficient in electrical engineering, specifically in the domain of differential relays. - Prior experience with GE T60 differential relay is a plus but not mandatory. - Excellent communication skills in order to explain the parameters clearly and address my specific concern regarding relay settings. Please reach out if you a...

    $135 (Avg Bid)
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    16 bids

    I'm in need of a skilled PCB designer who can replicate the functionality of the PZEM004T, a popular energy monitoring solution, in a custom design. Key Features & Functionality: - The PCB should incorporate voltage, current, and power measurement capabilities, similar to the PZEM004T. - High accuracy is a critical requirement for this project. The measurements need to be highly precise. Primary Application: - The primary use case of this PCB and accompanying coil transformer will be for energy monitoring purposes. Ideal Skills and Experience: - Proficiency in PCB design, particularly with energy monitoring systems. - Experience with high-accuracy voltage, current, and power measurement circuits. - Knowledge of coil transformer design and integration. - Understanding of energy ...

    $29 (Avg Bid)
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    8 bids

    I have a project requiring the conversion of a Gerber, Bill of Materials (BOM), and schematic files into a KiCad project. The task also includes implementing two minor changes post-conversion. Key Responsibilities: - Migrate Gerber, BOM, and schematic files to KiCad - Alter the KiCad project by rotating a diode component - Add a power feed for an LCD backlight Ideal Freelancers: - Proficient in KiCad, with a strong understanding of the software - Experience in PCB design, particularly in component rotation and additions - Demonstrable expertise in following and implementing BOMs - Familiarity and experience with Gerber file formats - Ability to communicate clearly and effectively to ensure project specifications are met

    $96 (Avg Bid)
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    43 bids

    Looking for an experienced electrical designer to create a wiring diagram in AutoCad for a Hydraulic Pump based upon an existing hand-made dwg in Visio. This project requires: - Proficient understanding of electrical drawings, specifically for MCC's - The ability to effectively visualize and capture wiring information The final output should be a matching wiring diagram on a company title blocks (also included) suitable for application in an industrial setting. This is an excellent opportunity for professionals with a background in electrical design.

    $18 / hr (Avg Bid)
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    32 bids

    I need Electrical engineer to design Electrical Panel using "Solidworks Electrical Schematic" I will share the electrical diagrams

    $116 (Avg Bid)
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    22 bids

    As an upcoming project, I need a specialized PCB designer with exceptional knowledge and skills from any CAD software such as Altium Designer, Cadence Orcad, or Eagle PCB. You'll be given the responsibility of creating a double-layer PCB design with power management, Bluetooth, and microcontroller functionalities. Here's what I expect: - Expertise in using any major CAD software for PCB design - Proven experience in double-layer PCB designs - Familiarity with PCB designs that accommodate power managing, Bluetooth connectivity, and microcontrollers - Capability to work within tight timelines and deliver high-quality output I look forward to onboard a creative thinker who can collaborate closely and intuitively throughout the course of the project. The ability to work withi...

    $53 (Avg Bid)
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    17 bids

    I'm currently in need of an experienced professional who can provide consultation in RAM PCB design. My primary goal is to significantly enhance the performance of my design. Key Requirements: - Improved Performance: The main aim of the PCB design is to optimize performance, so you should have a demonstrated track record in creating high-performance circuit boards. - Advanced Level Expertise: The project involves an advanced level of design complexity, specifically the creation of multi-layer PCBs. Your prior experience in handling such intricate designs will be crucial. - Compliance with IEEE Standards: The design must comply with the Institute of Electrical and Electronics Engineers (IEEE) standards. Experience and familiarity with IEEE standards in PCB design are essential. Idea...

    $76 (Avg Bid)
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    7 bids

    I'm in need of a professional who can create a double-layered PCB design for a medium-sized production run. Please pay attention to the following aspects: - The purpose of the design is solely for production. Therefore, the emphasis should be on the manufacturability, cost-effectiveness, and reliability of the final product. - The PCB should be designed within the constraints of a medium-sized board, measuring 10x20 cm. Please be mindful of the space limitations and ensure the components are arranged in an efficient and optimal manner. - Your experience and understanding of double layer PCBs will be critical. Skills and knowledge in optimizing component arrangement to reduce signal interference and ensure the PCB operates as intended will be valuable in this project. - The design sho...

    $103 (Avg Bid)
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    28 bids

    I need a custom PCB designed for my project, which involves controlling a 1.5v motor. The activation of this motor will be governed by 2 tilt switches connected to a lever - essentially, the motor will rotate an object based on the tilt movement of these switches. This PCB should be designed to run off a single AAA battery. Key Requirements: - The PCB should be designed to control a 1.5v motor - It should be able to run off a single AAA battery - Activation of the motor will be based on tilt movement, governed by 2 tilt switches - The goal is to rotate an object using this PCB Ideal Skills: - PCB Design - Transistor Switch Implementation - Battery-Powered Circuit Design - Tilt Switch Integration

    $198 (Avg Bid)
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    35 bids

    I'm seeking an experienced professional capable of performing a comprehensive PCB simulation using Ansys Slware, with a focus on thermal analysis, signal integrity analysis, and electromagnetic compatibility (EMC) analysis. Key requirements: - Conduct a detailed simulation that covers all aspects of thermal analysis, signal integrity, and EMC analysis. - Deliver the outcomes in a professional PDF report format. - The report should include a detailed analysis along with technical insights for each of the simulation areas. Ideal qualifications include: - Proven experience in PCB simulation using Ansys Slware. - Strong background in thermal analysis, signal integrity analysis, and EMC analysis. - Proficiency in compiling comprehensive reports with technical insights. - Excellent commu...

    $70 (Avg Bid)
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    11 bids

    (((( please check file first we are target cs 600 idea but with new feautres )))))) I'm in need of an expert who can handle the design of a PCB with specific requirements, as well as the creation of the software that will operate the chip. Key Requirements: - PCB Design: The design will need to adhere strictly to size constraints and efficient component placement to ensure a small form factor. - Chip Software Development: The software's primary function will be device control. It should be designed to enable the chip to efficiently interact with external tools and systems. Ideally, the freelancer should have experience in both PCB design and embedded systems, with a strong understanding of hardware-software integration. Proficiency in relevant software and tools for PCB desig...

    $1127 (Avg Bid)
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    24 bids

    I'm seeking experts in Europe to help us reduce the cost of wiring harnesses across multiple vehicle models. This project involves two main areas: - Copper Reduction: One of the primary costs in wiring harnesses is copper, so this project will involve strategies for minimizing the use of copper in our harnesses. - Material Optimization: Beyond just copper, we are looking for experts who can help us optimize the use of other materials in our wiring harnesses in a cost-effective manner. This is a remote job, and your payment can be hourly or monthly, depending on your preference and the scope of your involvement. Your experience in the field, especially with cost reduction in wiring harnesses, will be highly valuable. If you've achieved similar cost reductions in the past, please...

    $2721 (Avg Bid)
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    5 bids

    I'm urgently seeking a skilled PIC schematic circuit engineer who can create a reliable power supply circuit for my project. Key Requirements: - The power supply is expected to provide 5V and 1A output. Project Timeline: - I need this project completed as soon as possible. Your prompt delivery is essential. Ideal Skills and Experience: - Proficiency with Protel (Altium Designer) - Extensive experience in designing power supply circuits - Prior experience working with PIC microcontrollers - Ability to work quickly and efficiently to meet tight deadlines

    $15 / hr (Avg Bid)
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    The task involves the design of a low-power, 60601 compliant circuit for a battery-operated medical scale. Key Requirements: - The circuit should have the necessary features to power a medical scale capable of measuring over 100 kg. - Incorporation of Wi-Fi or Bluetooth connectivity is crucial to allow the scale to communicate with other devices. - The design should prioritize low power consumption, suitable for battery-operated devices. - Compliance with the 60601 medical electrical equipment standard is mandatory. We have a basic layout. There are 3 slaves and one master unit. In total 4 pads. The master unit has a display and also communication with the cloud via mqtt. Ideal Skills: - Extensive experience in low-power circuit design. - Knowledge of Wi-Fi and Bluetooth functions....

    $36 / hr (Avg Bid)
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    16 bids

    I am in urgent need of a developer who can create an electronic stamp for authenticating documents. The primary purpose of this stamp is to be used by businesses to ensure document integrity, and I would need it completed ASAP.

    $49 (Avg Bid)
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    7 bids

    I'm looking for someone who can design a 12vdc to 24vac inverter PCB for my home sprinkler control system. The inverter needs to be capable of outputting 24V AC 1amp at 50hz. Ideal candidate should: - Have experience in PCB design - Possess knowledge of inverters and power systems - Ample understanding of space and power constraints Adding to this, I have plans on outsourcing production, possibly to PCB way or similar. So the design you'll be generating should align with mass-production requirements. I'll require PCB fabrication data including: 1- Gerber files 2- Pick and place 3- NC drill 4- blBill of materials Ideally this will fit in a case, ready to be produced and shipped to a customer once assembled. This is a long term goal. Maybe won't happen. A company ...

    $75 (Avg Bid)
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    12 bids

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