12V Power Supply Board for Sensors
I need a 12V USB charger board designed primarily for powering sensors and modules. The board should provide a standard 5V output . Requirements: - 12V input js...
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30 V 2 A Boost Converter
I need a complete KiCad-based design for a DC-DC boost converter that takes a steady 20 V input from my wireless-charger receiver and delivers constant current...
Read moreESP32 Low-Power Audio Device — Custom PC
Description We're developing a battery-powered consumer audio device that plays pre-loaded audio recordings on a daily schedule (three fixed times per day). Aud...
Read moreSimple 4 layer KiCad Schematic + Layout
We need a board about 3" x 1/2". It will have 2 regulators (LDOs), a CPU, and transceivers. I'm looking for someone that has a real background and understanding...
Read moreRancang Spesifikasi PC Gaming Intel
Saya ingin membangun sebuah PC gaming berbasis Intel / NVIDIA dan belum memiliki daftar komponen sama sekali. Saya membutuhkan panduan menyeluruh yang mencakup:...
Read moreOn-Site Desktop Support Troubleshooting - 29/01/2026 23:45 EST
I’m looking for an IT technician who can come to our office and become an on-site standby IT support. When engaged, the working hours is from 8:30am to 5:30pm (...
Read moreFull Home Rewiring Installation - 03/01/2026 06:57 EST
I’m upgrading an older Malaysian home and need every circuit replaced, from the main switch-board right down to the last socket. The job is strictly installatio...
Read morePower Transformer Testing Engineer
Looking for someone that has knowledge to go through a set of transformer tests and be able to do an analysis on what is going on. Must have knowledge in readin...
Read morePerbaiki PC Mati Total
Komputer desktop saya benar-benar mati—saat tombol power ditekan tidak muncul lampu indikator maupun suara kipas. Belum sempat saya uji dengan kabel atau stop-k...
Read moreDesign and Development of a Variable 10 kV DC Power Supply Using SMPS Technique
This project involves the design and implementation of a high-voltage, variable 10 kV DC power supply based on Switch Mode Power Supply (SMPS) technology. The o...
Read more12V Circuit Board Design
I'm looking for a custom circuit board to power a 12V solenoid and a small 12V motor. The circuit board should regulate power supply and remain active until tri...
Read moreCustom Voltage Output Circuit Board
I need a small circuit board that takes two 20VDC hot-swap power inputs and provides multiple voltage outputs. Requirements: - Voltage Outputs: 5VDC, 12VDC, 20V...
Read moreSMART SMPS with Inbuilt Timer & SPD Protection
We are developing an industrial-grade Smart SMPS with an inbuilt digital timer module and surge protection (SPD) integrated into the PCB design. The freelancer’...
Read morePool Cover Control Repair
I need help repairing the faulty control panel on my electric pool cover control system. Requirements: - Diagnose and fix issues with the existing control panel...
Read moreArduino Power Outage Alarm
I need a complete design for a small, Arduino-Uno–based power-outage alarm that fits the following brief: – The system runs from a 12 V DC wall supply during no...
Read moreMitsubishi MELSEC PLC Troubleshooting
My Mitsubishi MELSEC PLC suddenly stopped responding after running flawlessly for a while, and I need a seasoned PLC specialist to pinpoint the fault and guide...
Read moreTB6600 Stepper Driver Setup
I already have a bipolar stepper motor, a TB6600 driver and a pulse / direction source on the bench, but the motor is still not turning. I need clear, hands-on...
Read moreتصميم لوحة PCB متكاملة
أحتاج إلى تصميم لوحة دائرة إلكترونية مطبوعة صغيرة (أقل من 10 سم) لتحريك مجسم المجموعة الشمسية داخل الصف. اللوحة ستتحكم في محرك واحد يحرك الكواكب وتدمج نظام إض...
Read morePerbaikan Lampu Rumah Bermasalah
Saya membutuhkan bantuan ahli listrik untuk memperbaiki kerusakan pada sistem lampu/pencahayaan di rumah. Masalah terjadi di titik lampu—lampu tidak menyala ata...
Read morePower Electronics Prototype Engineer Needed
We are seeking an experienced electrical engineer to join our team for a short-term project focused on developing next-generation hardware at a major startup. T...
Read more3 phase rectifier for 250A450V DC
Power supply design to provide continuous current of 250A.3 phase must be rectified with SCR.
Read moreH-Bridge Inverter Design Support
Looking for someone that knows a lot about H bridge for inverter on a design am working with to increase rating of this design to 10kva. Must understand mosfets...
Read moreWater Plant Mechanical, Electrical and P&IDs Design and Drawings
I need a complete mechanical and electrical design (distribution: from transformer to MCC, DB, Instrumentation) drawing set for a compact water-treatment plant,...
Read moreElectronic Technician for Power Supply Repair
I need an experienced electronic technician to repair a power supply issue on a Miller Weldmaster 112 Cross Seamer machine. Ideal Skills and Experience: - Exper...
Read morePCBA Layout for Mixed Motor Driver and Microcontroller Board
I'm looking for someone who can fix a problem with the layout of a small PCB with DC boost, DC Motor driver and MCU. Requires experience with mixed power, high...
Read moreCircuit Troubleshooting for Servo Motor
need help with troubleshooting circuit I have a servo motor and its corresponding motor driver connection details supply power to the driver using psu (power su...
Read morePower Electronics Specialist Needed
Power electronics expert required who can do stabality analysis of FFTS and document it properly under various operating conditions
Read moreHot Tub Motor Repair
My hot tub’s motor has stopped working altogether. The heater, shell, and plumbing seem fine, but the tub simply will not start because the motor refuses to kic...
Read moreتركيب أجهزة توفير الطاقة -- 2
أحتاج إلى مهندس كهربائي لتركيب أجهزة توفير الطاقة في مواقع متعددة. المهمة تستغرق حوالي ٣ ساعات. الأجهزة تشمل: - أجهزة توفير الطاقة المتطلبات: - ترخيص كهربائي سا...
Read moreFix Blocked Automotive Diagnostic Machine
My automotive diagnostic machine has suddenly locked itself and no longer powers up or communicates with vehicles. The problem is clearly hardware-related rathe...
Read moreUniversal signal generator
USG7007 – Universal Indoor-Outdoor Signal Translator & Diagnostic Tool (Extended Full Specification) --- 1. Extended Project Purpose The USG7007 is not only a t...
Read moreAC Communication Signal Device Development
Signal Requirements for My Project (Point by Point) 1. Types of Signals Device should handle all common inverter AC indoor-outdoor communication signals: UART /...
Read moreRenogy Inverter Repair
I'm seeking a skilled technician to repair my Renogy 2000W inverter, which is currently not powering on. Key Details: - I've already verified that the power sou...
Read moreDesign a Switch Mode Power Supply (SMPS) -- 2
I'm looking for an experienced electrical engineer to design a Switch Mode Power Supply (SMPS) with essential safety features. The circuit should be designed an...
Read moreMulti-layer KiCAD PCB Design
I need a multi-layer PCB designed using KiCAD for an industrial application. The PCB will include a microcontroller, power supply unit, and sensors. Ideal Skill...
Read moreArduino Beer Can Counter
I'm looking for an Arduino-based project to count beer cans that I place in a garbage can for returns. The system should be simple, efficient, and user-friendly...
Read moreTransformer Inrush Current Analysis
Looking for someone with Power engineering background to do an inrush current calculation of a transformer for me. Needs to be done immidiately
Read moreTreadmill Repair: Won't Start Issue
I'm looking for a skilled technician to repair my motorised treadmill, which currently won't start. Before it stopped working, I noticed a burning smell, which...
Read moreYüksek Voltaj Flyback Trafo Sürücüsü
Yüksek voltaj flyback trafosunu sürmek için sürücü devresi ve testlerinin yapılması talebimiz var. Proje istekleri ile ilgili detaylı açıklamalar ve sürülecek t...
Read moreFlashlight PCB Prototype Development -- 2
I'm looking for an experienced PCB designer to develop a prototype for a consumer electronics flashlight. The PCB should support brightness control and recharge...
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