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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.

Asiakkaamme antoivat 37,436 arvostelussa keskimääräisen arvosanan Circuit Designers 4.83 / 5 tähteä.
Palkkaa Circuit Designers

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    39 työtä löytyi, hinnoittelu EUR

    necesito diseñar el plano y la programación de un dispositivo electronico que se pueda conectar via ehernet a internet, que se pueda identificar, ejemplo puerta 1, 2 o 3 y que al recibir una señal especifica proveniente de internet con algun tipo de autenticación dispare un rele durante 3 segundos. con el fin de abrir remotamente unas puertas en un edificio

    €28 (Avg Bid)
    €28 Keskimäär. tarjous
    3 tarjoukset

    I am seeking a proficient electronics engineer or similar professional to design and develop a simple but reliable SPDT (Single Pole Double Throw) low voltage transistor microcircuit. The primary function of this microcircuit is switching between two circuits, not to amplify signals. We need to present a 5.1K GND to one of two GPIO pins on an MCU depending on the state of sensor output that throws a 5V high/low output on one single line Key Project Details: - The circuit should be designed to operate at low power levels to minimize power dissipation. - The preferred material for the transistor is Silicon. Ideal Skills and Experience: - Electronics engineering - Transistor theory - Circuit design and analysis - Experience working with silicon transistors and low voltage systems Your...

    €23 (Avg Bid)
    €23 Keskimäär. tarjous
    5 tarjoukset

    I'm looking for an experienced Electrical Engineer who can design a versatile switch mode power supply. Key details and requirements: - Operate on a 220V AC input. - Produce a 48V DC output with two current variants: 10A and 30A. - The power supply should interface with an Arduino ESP32 which will be leveraged to control multiple parameters including voltage, current, and temperature. - Include appropriate safety features in the design, such as short-circuit, overload, and overheating protection. Ideal skills and experience: - A strong background in Electrical Engineering. - Proficiency in using Arduino ESP32. - Proven experience in designing switch mode power supplies. - A keen eye for safety consideration in designs. The successful designer will not only possess the above-...

    €20 / hr (Avg Bid)
    €20 / hr Keskimäär. tarjous
    19 tarjoukset

    I'm in need of an experienced specialist in PCB designing, specifically for a medium-sized, high-power output audio amplifier (150W and above). Key Aspects: - The amplifier should support only analog inputs. - The desired audio power amplifier PCB should be of a medium size, suitable for high output power of 150W and above. Preferred Skills: - Proficiency in PCB Design - Familiarity with audio engineering concepts - Proven experience designing high-power audio amplifiers.

    €19 (Avg Bid)
    €19 Keskimäär. tarjous
    6 tarjoukset
    Simple PCB Design from Sketch 5 päivää left
    VARMENNETTU

    I require a professional to design a basic single layer PCB prototype using KiCad software. The design has to be brought to life from an existing drawing. Ideal Skills And Experience: - Proficiency in KiCad software for PCB design - Experience in creating basic single-layer PCBs - Understanding of circuit prototyping This is a rather straightforward assignment for someone with the right set of skills and experience. Your role will be instrumental in developing the prototype that forms the backbone of my product. Accuracy and attention to detail in your work are paramount, as the PCB layout will form the foundation of the final product. If this matches your skills and experience, I look forward to your proposals.

    €22 (Avg Bid)
    €22 Keskimäär. tarjous
    27 tarjoukset

    I am looking for a proficient PCB designer who is skilled in using Altium Designer. The task involves crafting an effective, energy-efficient, double-sided PCB. KEY REQUIREMENTS: - Expertise in Altium Designer Software - Experience with double-sided PCBs - Strong emphasis on ensuring energy efficiency Your technical proficiency in these areas will be crucial to the successful realization of my project. Efficiency-conscious design strategies will need to be employed to meet the project's primary focus of energy conservation.

    €15 (Avg Bid)
    €15 Keskimäär. tarjous
    7 tarjoukset

    I am actively seeking an expert in IRSIM and LTSPICE for a small task

    €21 (Avg Bid)
    €21 Keskimäär. tarjous
    4 tarjoukset

    We need an embedded systems engineer that has experience with high precision motor and sensor control. The engineer should have profound knowledge and experience with various electronic components in the market, because we need long lasting components for our project. We also need our system to be controlled with a mobile app. More details will be shared via chat. People with following skills bid on this project - 1) High precision motor and sensor control for dot matrix printing. 2) PCB design. 3) Embedded system app design.

    €179 (Avg Bid)
    €179 Keskimäär. tarjous
    7 tarjoukset
    Qi-Compatible Wireless Charging Battery 5 päivää left
    VARMENNETTU

    I require a qualified engineer to design and implement a small, slimline 5000mAh wireless charging battery that is compatible with all smartphones. This will need to be encased in a material such as silicone or similar, making the battery removable. The successful freelancer should display: - Proficiency in electrical/electronics engineering - Experience in building wireless charging solutions - Familiarity with the Qi wireless charging standard - Knowledge of smartphone battery requirements Please include references or examples of past similar projects in your bid. Thanks.

    €14 / hr (Avg Bid)
    €14 / hr Keskimäär. tarjous
    8 tarjoukset

    I am seeking an electronics engineer with deep expertise in circuit design, specifically mixed-signal circuits. Your Responsibilities: - Crafting and optimising a mixed-signal circuit design. Please Note: - Only those who provide detailed project proposals will be given serious consideration. Possessed Skills: - Extensive knowledge and experience in mixed-signal circuit designs. - Proof of similar projects will be highly appreciated. Your detailed proposal will make a significant difference in my decision. I'm excited to work with a professional who can deliver a state-of-the-art design.

    €4626 (Avg Bid)
    €4626 Keskimäär. tarjous
    3 tarjoukset

    As a beginner who's keen to learn Altium PCB board design, I am seeking a tutor who can help me understand and navigate Altium software. While the main focus will be on practical exercises, constructive feedback on my progress is highly appreciated. The tutoring sessions will be 1 hour each. An ideal tutor will have: - Comprehensive knowledge and experience in Altium PCB design - Excellent teaching skills tailored to beginners - Ability to provide practical exercises and meaningful feedback - Flexibility to adjust lessons according to my learning pace.

    €11 / hr (Avg Bid)
    €11 / hr Keskimäär. tarjous
    22 tarjoukset

    I need a skilled professional to assist me with a schematic and PCB design for a new electronic device. This project requires expertise in Eagle CAD platform and a strong understanding of both active and passive electrical components. The device is quite complex, containing a wide variety of components from resistors, capacitors, and inductors to transistors, diodes, ICs, connectors, sockets, and switches. Key Responsibilities and Requirements: - Creation of an advanced schematic and PCB design in Eagle CAD. - Familiarity with both active and passive components. - Ability to handle complex connections and features. - Experience in creating designs for high complexity devices. - In-depth knowledge of different components including resistors, capacitors, inductors, transistors, diodes, ICs...

    €100 (Avg Bid)
    €100 Keskimäär. tarjous
    24 tarjoukset
    Hardware development agency 4 päivää left
    VARMENNETTU

    I am looking for a hardware development agency, who can implement a serial production of a device. We have a prototype on a layouted PCB with preselected devices. We develop already the firmware on it. We require a extremly experienced hardware vendor, who can take this prototype, the schematics and the layouted design to bring it to a final product. We will have different options of the devices (e.g. on radio support and on energy harvesting) The product includes: - ruggerized industrial waterproof case design - radio support for ...- wifi ...- GSM/LTE ...- GNSS ...- satellite communications ...- Bluetooth/BLE ...- ZigBee - internal / external antennas (later with waterproof connections) - powerplug (waterproof connections) - external sensors/actors connectivity - redundant batteries ba...

    €805 (Avg Bid)
    €805 Keskimäär. tarjous
    25 tarjoukset
    Compact PCB Design & ESP32 Firmware 4 päivää left
    VARMENNETTU

    I need a PCB with 7 5x7 displays with output via a DS Olimex type connector. It will be connected to an ESP32 board to control these displays and show alphanumeric characters. I need a quote for designing the circuit and the PCB layout in Altium. And I need a separate quote for the firmware to use on the ESP32 for control. I was thinking of using 74hc595D for controlling the displays by multiplexing. The power input for the display board needs to be 12V, and include a circuit to control the current and keep the LEDs on or control via PWM from the ESP32; I'm open to the designer's suggestion. I'm looking for a fixed price quote.

    €24 (Avg Bid)
    €24 Keskimäär. tarjous
    5 tarjoukset

    I'm looking for an expert in off-grid systems to create a battery-powered solution for a refrigerator and an automatic gate system. - The system will need to be designed to support less than 6 hours of operation for both per day - Additionally, include a real-time monitoring system to track power usage and system performance. The ideal freelancer for this project should be experienced in battery power systems and understand the demands and constraints of standard home appliances in such setups. Previous experience designing real-time monitoring systems is also a plus. System standard: AC Line (110Vac or 220Vac) Normal Operation, Load is connected to AC Line in case of power loss, it will be supplier by li -ion battery Li-ion battery always charged by AC line (need to use BMS...

    €412 (Avg Bid)
    €412 Keskimäär. tarjous
    16 tarjoukset

    I am seeking an experienced Altium designer to create a small PCB for a battery-powered hand heater - powerbank device. Features: - Small sizes of PCB: 16×75mm (it could be double-sided) - PCB work as BMS for lithium battery 3.7V, 4A. - Charge battery with 5v, 2A. - Read temperature via thermistor (as example NTCLE100E3471JB0) - Include programmed controller with custom program. - Preset temperature programs: (40, 50, 60 °C), which users can adjust using a physical button. - Has 5 LEDs that indicate battery status and chosen program. - As powerbank support QC 3.0, Apple devices and Samsung devices. - Ideal one USB type C port for charging either phones and PCB battery. Detailed info for chips and components you can find in attached PDF Ideal Skills: - Experience with temper...

    €146 (Avg Bid)
    €146 Keskimäär. tarjous
    18 tarjoukset
    Electrical Engineer for Drink Dispenser 3 päivää left
    VARMENNETTU

    I'm seeking an experienced electrical engineer to assist in building a drinks machine Key Tasks: - Generation of BOM list - Wiring and connecting machine components - Power supply and control system 1. should check prefabricated electrical machines such as shakers or stirrers, what should be done to dismantle them and what changes the devices make, so that we can design the body of the cocktail machine according to the changes in the final model. 2. An electrical engineer should design a simple power supply and control system and declare all the parts and boards and the amount of wires and sensors and everything that is necessary to finalize the body model, consider their placement, and also esmate the price of the electrical parts necessary for The launch will also be announced.

    €149 (Avg Bid)
    €149 Keskimäär. tarjous
    26 tarjoukset

    I'm seeking a proficient PCB designer to develop a Wi-Fi rectenna design for the purpose of energy harvesting. The core requirements include: - Proficient skill set in PCB layout and design with a focus on rectenna structures - Understanding of the voltage multiplication to 5V to generate an output between 5V and 12V - Experience with wireless energy transfer, particularly in building Wi-Fi rectennas - Exceptional knowledge of rectifier topologies, specifically voltage multiplication The end goal is to have a Wi-Fi rectenna PCB that efficiently harvests wireless energy. Your expertise in harnessing this unconventional power source will position the project for success.

    €437 (Avg Bid)
    €437 Keskimäär. tarjous
    24 tarjoukset

    I'm in need of an expert electrical engineer to design a 200 volt DC to 200 volt AC 1500 watt converter. This converter will be an integral component for a stand-alone solar power system, intended to facilitate efficient solar energy conversion for household usage. A successful applicant will ideally possess: - Demonstrable expertise in Electrical Engineering - Prior experience in designing solar system equipment - In-depth understanding of voltage converters Deliverables: - Detailed schematics and plan for the converter - List of materials needed for production - Estimated production time and cost Your application should include: - Your credentials in the field of electrical engineering, particularly with similar projects - Any prior work on converters or solar systems, with ref...

    €13 (Avg Bid)
    €13 Keskimäär. tarjous
    6 tarjoukset

    I'm looking for a highly skilled electronic engineer with experience in chip design and programming to help create a novel baby sensor chip. The priority for this project is: - Detecting baby's movement through an accelerometer As an added capability, the chip should also be able to monitor the following vital signs: - Heart rate - Body temperature - Blood oxygen levels I am seeking an expert with substantial experience in wearable tech, healthcare devices, accelerometers, and vital sign monitoring systems. This professional would ideally have a clear understanding of the challenges related to miniaturization and energy consumption in wearable devices. Your tasks will include concept creation, circuit design, programming, and testing. I'm expecting a functional proto...

    €1344 (Avg Bid)
    €1344 Keskimäär. tarjous
    41 tarjoukset

    As part of an ongoing project, I'm seeking a proficient freelance designer who's knowledgeable about Cadence software to work on an Analog Circuit layout. Your primary responsibility will be to design an SRAM cell. Knowledge and understanding of the design intricacies of SRAM cells are crucial to the execution of this project. Your responsibilities will include: - Drawing the circuit layout using Cadence software - Being meticulous to ensure that all component are appropriately placed - Presenting an accurate visual representation of an SRAM cell. Ideal Skills and Experience: - Proficiency in Cadence software - Strong background in Analog circuit layout - In-depth understanding of SRAM cells design - Attention to detail - Strong communication skills. This project is a crucia...

    €11 (Avg Bid)
    €11 Keskimäär. tarjous
    5 tarjoukset

    I am looking for an expert in circuitry development, with proficient understanding and practical experience with ESP32 microcontroller, to create a circuit capable of measuring line-to-line voltage. This circuit should be crafted with a primary focus on voltage accuracy, especially in the range of 440vac. Key outputs needed from this project are numerical data formats. Your role will involve: - Designing and developing a circuit that can accurately measure line-to-line voltages without a neutral wire - Ensuring that the circuit can measure 440vac voltage accurately - Configuring the circuit to output data in a numerical format Ideal skills for the job: - Extensive experience in circuit design - Proficiency with the ESP32 microcontroller - Demonstrable history of projects focused on vol...

    €35 (Avg Bid)
    €35 Keskimäär. tarjous
    8 tarjoukset

    I am seeking a proficient electronic engineer with an in-depth understanding of VHDL (high level logic design) it's related to xlinx and vivado

    €26 (Avg Bid)
    €26 Keskimäär. tarjous
    5 tarjoukset
    AR Glasses Product Design & Engineering 2 päivää left
    VARMENNETTU

    I'm looking for an experienced electronics engineer to take the helm in designing a brand-new AR Glasses product, primarily targeted for general consumers. Key Responsibilities: - Circuit design for the AR glasses system - Creation and perfection of the PCB layout - Prototype assembly and testing _ casing design may be required Desired Features: The product must support voice control and gesture recognition. Incorporating a high-resolution display is also a plus. Ideal Expertise: Potential freelancers need to have a robust background in electronics product design, circuitry, and PCB layouts. Experience specifically in AR products or similar consumer electronics will be highly valued. Dexterity in managing different product features and a flair for infusing cutting-edge tech traits...

    €126 (Avg Bid)
    €126 Keskimäär. tarjous
    8 tarjoukset
    Optimize My 48V DC-DC Converter Design 1 päivä left
    VARMENNETTU

    I am looking for an electrical engineer with experience in DC-DC converter design to review and optimize my current design. The goal is to improve cost and performance. Key Project Requirements: - Review Capacitance Calculations and Components - Review Inductance Calculations Switching Frequency: 24-60kHz Input Voltage: 200-600V Output Voltage: 48V Output Current: 70A Ideal Skills and Experience: - Deep understanding of DC-DC converters - Experience in cost reduction and performance enhancement - Ability to work effectively under design constraints This is a complex task and therefore, understanding of power electronics is a must. Looking forward to your bids!

    €106 (Avg Bid)
    €106 Keskimäär. tarjous
    31 tarjoukset
    Power System Design Assistance Needed 1 päivä left
    VARMENNETTU

    I'm currently in the design stage of my power system project and I'm seeking the expertise of an experienced electrical engineer. I really need help when it comes to generating schematic diagrams. For this project, the ideal candidate will have: - Strong knowledge in power system design - Extensive experience in generating schematic diagrams - Excellent problem-solving skills A strong understanding of the intricacies involved in power systems is a must, as well as a keen eye for detail. The successful candidate will work closely with me to design efficient and reliable power systems. To sum it up, I'm looking for someone who can guide me through the design process and help pinpoint and rectify any issues that may arise. Your expertise would be invaluable in ensuring the...

    €29 (Avg Bid)
    €29 Keskimäär. tarjous
    19 tarjoukset

    I am currently working on a project that requires the design of an intermediate-level, double-layered circuit board, and I am in need of an experienced layout artist proficient in the use of Cadence software. The project specifics include: - Initiating a circuit board layout design. - Integrating SRAM components into the design. - Ensuring the circuit board is double-layered and functions effectively. The right freelancer for this project should possess: - Extensive experience using Cadence software. - Solid understanding of circuit board designs. - Specialization in integrated circuit design and PCB design. - Working knowledge of SRAM components. - Ability to comprehend and effectively translate project requirements to ensure goals are met. The ideal candidate will bring innovative ide...

    €11 (Avg Bid)
    €11 Keskimäär. tarjous
    8 tarjoukset

    I need a professional to create a circuit that will be activated by a PIR sensor. This circuit should trigger an LED signboard display. Responsibilities for this project will involve designing, building, and testing this circuit to ensure it can reliably trigger the display in response to the sensor. Key Job Requirements: - Proficiency in circuit design and construction - Experience with PIR sensors and relay switches - Understanding of LED signboard displays - Ability to make the circuit work as both NO / NC switch - Creation of a circuit that can open a NC relay for five seconds Your bid should include an estimated timeline for designing, building, and testing this circuit. I look forward to working with an experienced professional who can complete this project efficiently and effec...

    €86 (Avg Bid)
    €86 Keskimäär. tarjous
    11 tarjoukset

    Currently, I'm seeking an advanced optical engineer to assist with the design of a camera for individuals with low vision. Key Responsibilities: * Engineer a camera focusing specifically on optical zoom capability. Ideal Skills & Experience: * Broad knowledge and experience in optics design, particularly in the area of low vision cameras. * Demonstrable expertise in designing cameras for low vision applications. * Proficient in implementing optical zoom capabilities in camera designs. Looking forward to a fruitful collaboration with the right professional.

    €644 (Avg Bid)
    €644 Keskimäär. tarjous
    23 tarjoukset
    Power Electronics calculation 17 tuntia left
    VARMENNETTU

    Need to calculate the instantaneos rate of change of current in a single phase AC motor circuit. Tell me your experience in this field in the chat and I will share more details.

    €21 (Avg Bid)
    €21 Keskimäär. tarjous
    15 tarjoukset

    As a leading innovator in consumer electronics, we're looking for a highly skilled Electronic Engineer to revamp our existing power supply design. A successful redesign will embody: - Increased Efficiency: We want to maximize the output-to-input power ratio, reducing energy consumption and overall costs. - Smaller Size: To fit into tight spaces, would be nice if the power supply size was reduced without sacrificing performance. Key Technical Requirements: - Voltage Range: The power supply should function optimally across a wide voltage range. - Current Capacity: It must handle varying current demands that come with different electronic devices. - Temperature Range: Operational stability must be maintained across various environmental and load conditions. Proven experience in po...

    €52 / hr (Avg Bid)
    €52 / hr Keskimäär. tarjous
    11 tarjoukset
    Vacuum Pump Electronic Board Design 11 tuntia left
    VARMENNETTU

    I am looking for someone with experience in electronic board design to create an adjustable, timer-controlled vacuum pump. The objective of this board is for use within a volume-metered vacuum system. The precise requirements are: - An adjustable volume range. - A programmable timer system. - Ensuring reliable accuracy in measurement. -Rechargeable battery operated The desired maximum volume range for the vacuum pump should be between 5 - 15 Lpm. Your background in IoT devices will be a direct fit for this project, and your understanding of home automation and robotics will give a broader perspective to meet my needs. If you are detail-oriented and can deliver high-quality work, this project is for you.

    €567 (Avg Bid)
    Salassapitosopimus
    €567 Keskimäär. tarjous
    25 tarjoukset

    I'm seeking an experienced engineer or technician to retrofit my towed sweeper. It currently leverages a tractor PTO and needs to be converted to an electric motor using battery as power source. Key requirements are: - Implement a medium powered electric motor (51-100 Horsepower) - The system should be designed to withstand high temperature and dust conditions - Careful consideration of battery life, considering conditions and required power Ideal candidates will have experience in agricultural machinery and electrical engineering. Knowledge on battery-powered systems is a big plus. Deadline oriented professionals will be highly regarded.

    €341 (Avg Bid)
    €341 Keskimäär. tarjous
    13 tarjoukset

    Torque3 needs to refine an existing integrated circuit design for a medical device designed at neurorehabilitation. This project will require some onsite work. We are looking for an electrical engineer with expertise in integrated circuit design. A background in medical or health care related projects would be a bonus. Previous work with ruggedized devices would be a significant advantage. Your tasks will include: - Designing revisions to the integrated circuits for the platform - Collaborating with my team to ensure that the design meets the intended purpose Skills you'll need: - Proficiency in integrated circuit design - Understanding of ruggedized principles - Excellent collaboration and communication skills Please provide examples of your previous work in integrated circuit d...

    €53 / hr (Avg Bid)
    €53 / hr Keskimäär. tarjous
    11 tarjoukset

    I'm looking for an experienced electrical engineer to design a switching circuit that will amplify a 990MHz radio frequency. The operation should be governed with a 0.5v pulse over 1ms. The key elements of this project to consider are: - Compact Size: The circuit needs to be compact due to limited available space. - 1W Maximum Input Power: The design must be capable of handling a maximum input power of 1W. Ideal skills for this project include a strong background in RF electronics design and a good understanding of compact circuit layouts. Please note that reliability and energy efficiency, while important, should not supersede the need for compactness in this particular project.

    €40 (Avg Bid)
    €40 Keskimäär. tarjous
    3 tarjoukset
    I need a power electronics expert. 3245 päivää left
    VARMENNETTU

    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

    €9 / hr (Avg Bid)
    €9 / hr Keskimäär. tarjous
    28 tarjoukset

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