Development of pulsed power device for life science application. Will need to sign an NDA. Software, firmware, protoyping.

I am looking to purchase an AC to DC power supply from a new manufacturer. I want an evaluation of the design and components to determine the quality of the power supply. I have an existing power supply that we have been using and I would like a comparison between the two. I am looking specifically for effeciency, longevity, surge durability and overall quality. I can provide a sample of both the potintial power supply and our existing power supply.

Hi, I need a breadboard to take the signals from 2 optical beam breaks and calculate speed of the moving object. Then the speed needs to display on a display. Thanks

I need a skilled antenna designer to create a GPS directional (Yagi, Vivaldi ....) Printed Circuit Board (PCB) antenna specifically designed for GPS applications. Key Requirements: - The antenna should support GPS L1 1.57542GHz for optimal GPS functionality. - The design should be compact. Ideal Skills and Experience: - Proven experience in designing UHF PCB antennas. - Prior projects related to GPS antenna design would be a significant plus. If you've got expertise in this area, I'm eager to hear from you and potentially kick-start our collaboration.

URGENTT PROJECT. The project would be to design and build a PCB device and 3D Printable enclosure that supplies power via POE (power over Ethernet) to equipment and can accept a standard construction equipment battery from a manufacturer such as Dewalt, Ryobi, etc. to provide the power to the attached device. There should be 2 Ethernet ports (an incoming and outgoing ethernet port) supporting 5Gbps and the power draw will be selectable via switch or button. The power will need to conform to the standards for 802.3af (POE), 802.3at (POE+), and 802.3bt (POE++) and include a power meter that shows the amount of battery power remaining. A USB-C port should also be included. The enclosure should be 3D printable.

We are seeking an experienced freelancer to replace the existing microcontroller on a printed circuit board that includes 150 LEDs. The goal is to replace the current microcontroller with a new one that supports the xlights app. The chosen candidate will need expertise in microcontroller programming and circuit board design. The project will involve the following tasks: - Remove the existing microcontroller from the circuit board - Select and install a compatible microcontroller that supports the xlights app - Test the functionality of the new microcontroller with the LED circuit board - Ensure seamless integration of the microcontroller with the xlights app We are looking for a freelancer with an intermediate expertise level who can complete the work within a duration of 1 to 3 months.

We are seeking a highly skilled and experienced Contract Electronics Engineer to join our dynamic team on a project basis. Our ideal candidate is an expert in power electronics, with a proven track record of designing, prototyping, and preparing electronic circuits for production. This role is perfect for someone passionate about innovation and excellence in the field of electronics engineering. Responsibilities: - Design and develop electronic power circuits, audio circuits, and IoT devices. - Prototype, test, and iterate designs to ensure optimal performance. - Prepare comprehensive design documentation and production specifications. - Collaborate with cross-functional teams to integrate electronic systems. - Conduct and oversee rigorous testing to validate the functionality and reliability of the designs. - Provide technical guidance and expertise in electronics engineering. Qualifications: - Bachelor’s degree in Electronics Engineering, Electrical Engineering, or a related field. - Minimum of 5 years of hands-on experience in electronics design, with a strong focus on power electronics. - Proficiency in designing and prototyping electronic circuits. - Extensive experience in bringing designs from concept to production. - Strong analytical and problem-solving skills. - Excellent communication and collaboration abilities. - Familiarity with industry-standard electronics design and testing tools. Preferred Qualifications: - Experience with audio circuit design. - Knowledge of IoT device development. - Past projects involving electronic power circuits. What We Offer: - Opportunity to work on exciting and innovative projects. - Flexible project-based engagement. - Collaborative and supportive team environment. Application Process: Please submit your cover letter and a portfolio of your past projects, highlighting your experience with power electronics, or audio circuits, and/or IoT devices. We are excited to see what you have accomplished!

Acme Revival is seeking a circuit (PCB) board technician to join our team remotely and perform electronic repairs at his/her own location, on their schedule, utilizing their own equipment. Acme Revival will send freelancer physical circuit boards and other components directly to their location via courier UPS Overnight, with expectation of diagnosis, repair, etc... within 72 hours. Freelancers generally start at around 15 hours per week. Freelancer will be required to test, troubleshoot and repair electronic, electro-mechanical and/or mechanical devices to component or sub-assembly level. Further, freelancer should be able to use critical problem solving skills to disassemble machines, and use best-judgement practices to determine "next-steps". Job Purpose: Test, troubleshoot and repair electronic, electro-mechanical and/or mechanical devices to component or sub-assembly level. Nature of Duties: Troubleshoot circuit boards to the component level without board schematics Use systems and test fixtures to determine PCBA and assembly functionality Ability to use standard measurement and test equipments such as: digital voltmeters, oscilloscopes, power supplies, and power sources Troubleshoot, repair, calibration, and testing of electronic assemblies, instruments and mechanical assemblies at the lower or component level Complete rework on assemblies (component level) and/or systems as a result of testing Ability to utilize soldering to re-work board as a result of testing

We are a startup looking for proof of concept of our device. www.healthmetryx.com

I would like to have a consult regarding the following circuit - https://longview.be/basic-rf-over-fiber-laser-driver.html I am attempting to integrate it into a LiFi project. Ultimately I need to use an LED as the transmitter. I understand there is a significant difference in bandwidth. The incoming RF signal frequency will be in the 2-100 Mhz range. Instead of taking the circuit apart and redesigning it, I am wondering if it is possible to allow the circuit to perform the modulation and then amplify the output. For example - If I was able to construct the board, could I do something like the following (assuming supporting circuitry were designed) - Connect a laser diode like this - https://www.lightoptics.co.uk/products/1310nm-coaxial-3mw-dfb-laser-diode-fiber-pigtail-fc-apc-connector To a photodiode like this - https://www.lightoptics.co.uk/products/1550nm-photodiode-coaxial-fiber-pigtail?pr_prod_strat=e5_desc&pr_rec_id=dda712133&pr_rec_pid=7869658857730&pr_ref_pid=7870182555906&pr_seq=uniform Then connect the photodiode to a transimpedance amplifier like this - https://www.ebay.com/itm/155797335155?itmmeta=01HVKG8FNC6EMC7QHDC2BW0RQS&hash=item24463eac73:g:LsYAAOSw6pRlEvLw&itmprp=enc%3AAQAJAAAA0G7waUPGWl36fMiTU8xff9f09lO1rmx8hWpaRpi%2FYWOuz5AQMr0VAiF7f%2FcoeBbWiUROzJx1F%2BRB17mFrPo5x1lqWBUO%2BLZoVRlglNf5i1ev3CIvf6YF5WeXfmQYrUyy6AzWgPSxZzUwjv4x5rVXDBhGcUqvPA9ffGzLpDUqiJ%2B66Ggw69kBpyRqBAFbM0CpkzdqY5BnmGq2VyVc%2BcWFjbPl4Y7aXotYCc21Kwx52q1JmVLJqsf4n7aKkl6OwAqyW8I1kDWQNUh0u3mP2SPcwvM%3D%7Ctkp%3ABk9SR-D6ofDcYw If that is usable, could the output from the amplifier be combined with a power supply to modulate an LED to use as a LiFi transmitter? What size/power LED's could I support? I am also open to alternatives. This is what our call will focus on if you would like to participate.