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 35,881 reviews, clients rate our Circuit Designers 4.84 out of 5 stars.
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    29 jobs found, pricing in USD

    I'm in immediate need of an experienced PCB designer capable of developing a medium-sized PCB (dimensions between 2" x 2" and 4" x 4"). The board should feature: • Power Management: The circuitry on this board should optimally utilize and manage electrical power. • Communication Interfaces: The design should integrate necessary channels for robust and reliable communication between components and other systems or devices. • Sensor Integration: Abilities to design board accommodating sensors is a must. The board will need to operate under high temperatures, so a design resisting such conditions is necessary. Ideal candidates should have a strong background in hardware design, with proven experience in designing PCBs similar to the s...

    $94 (Avg Bid)
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    5 bids
    IOT Fire Sprinkler PCB Design 6 days left
    VERIFIED

    I'm in need of a PCB design expert with experience using Altium Designer software. The project at hand is to design a PCB for an IoT-based Fire Sprinkler system. Features: - The fire sprinkler system should have the ability to monitor ambient temperature. - It must be equipped with an automatic alarm detection function. - The system must be remotely controllable. Considerations: - The PCB should be custom-sized according to the specifications that will be provided. Ideal Experience & Skills: - Proficiency in using Altium Designer for PCB design - Understanding of temperature monitoring systems - Prior experience in designing IoT-based Fire Sprinkler systems or similar IoT devices - Ability to adhere to custom dimensions and size requirements for the PCB. I'm looking ...

    $90 (Avg Bid)
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    4 bids

    I am seeking an experienced electrical engineer to design a 12V battery charging circuit specifically for a lead-acid battery. The objective is to develop a design that is efficient and practical to implement. Key Requirements: -THE BUTTON PRESSED FROM THE OUTSIDE WILL PROVIDE 12V OUTPUT TO THE CARD - The input voltage for the charging circuit needs to be 24V. The successful candidate should have a proven track record in circuit design, particularly in chargers for lead-acid batteries. You should demonstrate understanding of safety requirements and efficiency metrics. Skills and Experience: - Expertise in Electronics and Circuit Design. - Understanding of lead-acid battery charging. - Familiarity with testing and validation proceedings. - Knowledge in PCB layout will be a plus. Whe...

    $31 (Avg Bid)
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    8 bids

    I'm in need of an expert in power electrical engineering, specifically proficient in earthing and grounding systems. The project involves: -finding best optimization Method for my piping line that help me findvbest design for my electrodes in my noden - this Optimized Model should be most cost efficient at the same time stay under limit Voltage The electromagnetic field that forms around electrical wiring systems induces voltages in neighboring metallic infrastructures. Dangerous contact voltages can occur locally in metallic pipelines. In order to reduce the pipeline potential, earthing systems are often used. It must be noted, among other things, that their arrangement is only possible at certain points or areas of the pipeline and that there may be different specific soil resist...

    $773 (Avg Bid)
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    7 bids

    I'm currently embarking on a home automation project and I'm looking for a skilled PCB designer to join me on this journey. Tasks and Responsibilities: - Design a PCB suitable for managing a robust home automation system - This system should facilitate lighting control, fan speed regulation and managing a security system - The designed board is expected to interconnect and interact seamlessly with the various elements spread within an entire house. Ideal Candidate: - You should have a strong background in PCB design, experience in designing home automation boards will be a major plus. - Knowledge of integrating wireless communication components as the system will be controlled via a mobile application is essential. - Being able to work collaboratively as well as independently ...

    $52 (Avg Bid)
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    5 bids

    I am seeking a freelancer with a strong background in Signal Generator & Radio Frequency (RF) amplification/antenna design for a project I am working on. The goal of this project is to design a signal generator and RF amplifier that can be adjusted between 42-45 kHz ±0.1kHz with adjustable output power ranging from 1-5 Watts ±0.1W. Additionally, it would require the design of a base or center-loaded antenna approximately 3 meters in length. The power supply should be able to function with 120VAC 60Hz. This project needs someone with the following skills: - Frequency generator design - Knowledge of RF amplifier design - Proficient in antenna design, specifically prioritizing compactness - Understanding of electronics and power supply requirements

    $167 (Avg Bid)
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    17 bids
    Urgent LTSpice Analog Design 6 days left
    VERIFIED

    I am in need of an expert in analog circuit design using LTSpice. I need assistance urgently, so please only get in touch if you can start working on the project immediately. Key tasks include: - Working on the analog circuit design - Refining design components where necessary - Ensuring the accuracy and efficiency of the design The ideal freelancer for this project would have: - Extensive experience in analog circuit design - Proficiency in using LTSpice for circuit design - A demonstrable record of delivering projects within tight timelines - Strong attention to detail to ensure accuracy in the design Please provide examples of previous work in LTSpice and in analog circuit design when bidding for this project. Your expertise and quick turnaround will be greatly appreciated. Note: C...

    $15 (Avg Bid)
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    5 bids

    I'm looking for a experienced electrical engineer to assist in the development and design of a Printed Circuit Board (PCB) for a consumer electronic device. Key Aspects: - The primary function of the PCB will be to operate a speaker and manage charging. - The speaker should be a Bluetooth enabled one with microphone capabilities. - It's critical that the speaker delivers a notable output audio power. Ideal Skills and Experience: - PCB design, Circuit Design and Firmware creation. - Experience in working with consumer electronics. - Knowledge in signal processing and power management systems. - Prior work with Bluetooth and Microphone enabled speaker systems would be beneficial. In conclusion, I am in need of a professional who can take care of end to end solution from PCB-Co...

    $106 (Avg Bid)
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    5 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. 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 control a power circuit. Id...

    $89 (Avg Bid)
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    8 bids

    I'm currently facing an issue with my high voltage power converter. The insufficient power output and voltage instability are the primary problems hampering the device's performance. I aim to augment this converter to support a power output level of 1000W. This enhancement should resolve the aforementioned issues and provide a stable, high power output. However, changes or upgrades must not include alterations to the transformer and rectifiers (or minimal as there are space constraints) The following components are open to modifications: • Resonant component: You may consider replacing or modifying the LRC after the full bridge to deal with transformers' equivalent load and parasitic capacitors. The capacitor is estimated to be 1.7uF. • MOSFETS, Frequency etc. ...

    $147 (Avg Bid)
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    19 bids
    Nucleo eMMC PCB Design 4 days left
    VERIFIED

    This project focuses on the design of a PCB replicating the form factor of a Nucleo-F446RE, while retaining all pin headers for Nucleo compatibility. The objective is to seamlessly integrate the THGBMNG5D1LBAIL eMMC storage module into the PCB layout. The design will feature an onboard USB2240 controller with a Micro-B USB interface, facilitating eMMC programming. Specific microcontroller pins, to be provided, will establish connections with the eMMC. All components utilized in the design, including capacitors sourced from Samsung and resistors from Uniroyal, will be procured from JLCPCB to ensure efficient procurement and assembly. For this project, you will need to submit the Altium design files, Bill of Materials (BOM), Gerber files, and pick and place files for manufacturing.

    $146 (Avg Bid)
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    28 bids

    I am looking for an experienced electronics engineer who can assist in creating a block diagram for my new range model, the RR-800. This diagram is set to work primarily as an add-on. Key Requirements: - Skilled knowledge of opamps, resistors, power supplies and thermistors. These components are to be included in the block diagram. - Past experience and understanding of circuit diagram creation. This task requires proficiency in electronics engineering with an ability to integrate various components into a cohesive block diagram. If you have hands-on experience and believe you's up for the challenge, feel free to bid.

    $15 (Avg Bid)
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    9 bids

    I am looking to have a compact 220v inverter designed to power electronic devices during my travels. The ideal candidate for this job will have a deep understanding of electronic product design and development, especially in relation to power inverters. Key Requirements: - Compact Size: The inverter needs to be compact for easy transport during travels, yet capable of delivering the required power for various electronic devices. - Functionality: While the exact devices have yet to be specified, the inverter should be able to handle common electronic devices such as smartphones, laptops, and similar devices. Ideal Skills and Experience: - Extensive experience in electronic product design and development. - Proven portfolio of power inverter design projects. - Strong understanding of po...

    $475 (Avg Bid)
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    22 bids

    I'm looking for an experienced electronics circuit designer to help me with my home appliance. This project is centered around designing a functional electronic circuit that supports both task lighting and decorative lighting. To provide better detail: table top (no cable) task light small simple pcb (low batch of say 40 units) battery (rechargable) supply (12V LiFePO4) single MR16 7W cob lamp please see attached pdf It is ideal that the freelancer has good experience in electronics circuit design specifically for home appliances, and in the creation of circuits that support different lighting functionalities. The files would include Gerber files inc BOM.

    $584 (Avg Bid)
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    45 bids

    Hey, I am looking for someone who will Design Hardware for ESP32 (Lighting with WS2815). I will do software by myself 1. Power Supply - Battery-operated - 2x18650 batteries connected in series - Ability to be powered by 12v (mains adapter) 2. StepUp to 12v for powering the programmable WS2815 LED strip (unless someone convinces me that it's better to use WS2813 with StepDown) - Power consumption for the LED strip, at least 50W, max ~200W - Logic level converter required from 3.3v -> 5v 3. StepDown for powering the ESP32 4. OLED display 128x64 I2C 5. Measurement of power supply voltage and power consumption 6. Power activation via a mechanical switch 7. 2x rotary encoder with button 8. Connector for programming the ESP32

    $198 (Avg Bid)
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    23 bids

    I'm seeking top-of-the-line engineers who are fervently skilled in antenna design, particularly in the mm-wave frequency band (24–31 GHz). My primary aim is to create a semi-flexible two-port (MIMO) antenna with dual (CP) specifically tailored for wearable applications in biotechnology. Key Features Required: - Small size: The antenna must be compact to be comfortably worn and integrated into the biotechnology devices. - High efficiency: Without compromising its size, the antenna should powerfully perform its functions. - Wide bandwidth: To ensure the seamless connection and representation of data, the antenna should are capable of covering a broad frequency range. Transmission Distance: - The designed antenna's transmission distance should not only cover short distance...

    $89 (Avg Bid)
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    5 bids

    I am on the hunt for an expert who can quickly design and manufacture a PCB and circuit, initially for a prototype then for the final production unit. Here's what I'm particularly looking for but the one should be able to work on entirely the PCB and circuit design and manufacturing, components sourcing and its assembling, firmware and programming, etc : " WE DO HAVE THE PRODUCT DESIGN BUT NEED TO HAVE THE CIRCUT PART TO BE GET READY" 1. **Purpose:** This project is all about getting an initial prototype up and running, with the ultimate aim of moving into full-blown production. 2. **Size:** While I haven't specified a size, I'm open to discussing this based on your expertise and what will be most effective for the design and functionality. 3. **Deadline:*...

    $108 (Avg Bid)
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    7 bids

    Project to develop a printed circuit board and components for preamplifier for acoustic guitar. With tuner, volume, bass, middle and bass control.

    $117 (Avg Bid)
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    18 bids

    I am in need of an experienced freelance electronics designer who can assist us with design of a basic daughter board PCB for USB3 and Ethernet. Key Requirements: - Experience designing USB3 circuits - Available immediately The level of complexity for this project involves working on a multi-layered PCB. Importantly, please note the schematic already fully exists. The ideal freelancer should demonstrate previous experience in working with multi-layer PCB projects, and should be familiar with relevant tools and software. Kindly include previous PCB layout projects in your bids. By accurately interpreting my existing schematic, your role will be to check the design and feedback recommendations of suggests on function. Thank you in advance eager to start collaborating with you.

    $611 (Avg Bid)
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    47 bids

    I need a professional embedded system developer who is well-versed in C++ and Python languages ,circuit designing ,pcb designing, to join my project urgently. - Embedded system design with pcb design - HMI WITH TOUCH SCREEN AND WI-FI,MCU WITH 16 I/O, SENSORS,STEPPER MOTOR CONTROL,ACTUATOR AND BATTERY BACKUP. ETC.. - Proficiency in C++ and Python - Experience in designing and implementing embedded system code - Ability to work under tight schedules and deliver high-quality work While the specific details of my project have to be undisclosed for now, an understanding and experience across different domains of embedded systems, namely IoT, Robotics, and Automotive could be advantageous. The successful candidate should be able to deliver the project ASAP. Strong skills in problem-solving...

    $799 (Avg Bid)
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    10 bids

    For my project, I'm in need of an exceptional PCB designer proficient with LoRaWAN, GSM, and esp32 to develop a comprehensive remote monitoring system for various environmental conditions. Specifically, this mechanism will be responsible for tracking temperature and humidity, assessing air quality, acceleration, GPS, and conducting infrared detection. Key requirements: 1. Specialization in loRaWAN, PCB layout design, GSM, and esp32, firmware design. 2. Experience in home automation and remote monitoring devices would be a plus. 3. Proficiency in temperature, humidity, air quality, and GPS sensors technology. 4. A deep understanding of infrared detection. This will be a challenging and exciting project for the right freelancer with the appropriate skills. Looking forward to a meani...

    $201 (Avg Bid)
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    34 bids

    I'm seeking a licensed electrical engineer based in California who would be responsible for ensuring code compliance on specific PV solar permit projects. PV plan sets are designed by electrical engineers (not Licensed in California) As an electrical engineer, you should be familiar with electrical codes and demonstrate excellent attention to detail. Key Responsibilities: - Maintain and verify electrical code compliance - Carry out relevant research and provide advice on PV plan set corrections. - The electrical engineering stamp to confirm that all of the work was prepared under his direct supervision, and “responsible charge”. This stamp is your formal declaration that the design documents conform to all requirements of the applicable standards and codes. Skills &...

    $145 (Avg Bid)
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    6 bids

    I am seeking expertise in developing an electrostatic sensor with specialized features. The core requirement for this sensor is to detect human presence, specifically behind curtains and walls. This should be achievable within a short range, up to 2 meters. Moreover, it should primarily be able to detect movement signals. Ideal candidates for this project should possess: - Profound knowledge in electrostatics and sensor design. - Experience in developing movement signal-detecting devices. - Skills in prototyping and testing sensor range and effectiveness. This project demands not only technical proficiency but also innovative and solution-oriented thinking. The end goal is a sensor that can accurately and reliably detect humans in close proximity, even through obstructions. Let'...

    $154 (Avg Bid)
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    Pls refer the attachment Prerequisite software Virtusso freepdk 15

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    As an enthusiast in electrical engineering, I am mainly focused on designing a power electronic circuit. The fundamental functionality expected of this circuit involves busbar design. Therefore, I am looking for an experienced electrical engineer with a solid background in power electronics. Key requirements for the project are as follows: - Proficient in designing power electronic circuits - Extensive understanding of busbar design - Capability to troubleshoot related issues Your expertise in this field will significantly contribute to the successful implementation of my project. Your incredible creativity and deep understanding of electrical engineering will be greatly appreciated. Thank you for considering my project, I look forward to working with you.

    $14 (Avg Bid)
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    I urgently need a skilled and experienced electrician to boost the size of my current electrical panel. It's a 150 amps panel for 10 apts, which I am looking to upgrade for increased capacity. The ideal capacity I'm aiming for is double the current one, turning it into a large-scale 400-amp system. Your expertise in similar projects that involve resizing electrical panels and configuring the circuits to accommodate the increased power demand is crucial for this job. Some key details of the project are: • Assessment of current panel and circuit layout • Replacing the 150-amp panel with a 400-amp one • Ensuring safety standards and protocols are followed • Regulating power supply to avoid system failure Remember, the goal is to increase the capacity of the pan...

    $151 (Avg Bid)
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    18 bids

    I urgently need a skilled and experienced electrician to boost the size of my current electrical panel. It's a 150 amps panel for 10 apts, which I am looking to upgrade for increased capacity. The ideal capacity I'm aiming for is double the current one, turning it into a large-scale 400-amp system. Your expertise in similar projects that involve resizing electrical panels and configuring the circuits to accommodate the increased power demand is crucial for this job. Some key details of the project are: • Assessment of current panel and circuit layout • Replacing the 150-amp panel with a 400-amp one • Ensuring safety standards and protocols are followed • Regulating power supply to avoid system failure Remember, the goal is to increase the capacity of the pan...

    $1000 (Avg Bid)
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    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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    J'ai un besoin spécifique en lien avec mon projet Kicad. Je suis actuellement aux prises avec certains composants de mon kicad que je n'arrive pas à simuler. Pour ce projet : - Je cherche quelqu'un qui peut me créer une version de mon Kicad qui est optimisée pour la simulation de circuit logique. - Malheureusement, j'ai dû sauter la question concernant les composants spécifiques que je ne peux pas simuler. Cela dit, nous pourrions discuter de ce détail plus en profondeur lorsque nous commencerons le projet. - Je peux partager que je souhaite simuler des composants tels que AOP et REF dans mon circuit logique. Idéalement, vous devriez avoir une expérience significative avec Kicad et la réalisation de ...

    $24 (Avg Bid)
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