Electrical Engineer needed to explain the proper way to make a repair. And explain why, we are having intermittent failures.

Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent welding power supplies design, high frequency transformers design, solar grid tie transformers, electrical vehicles design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have very good experience to design high voltage power supplies up to 50KV for capacitor charging power supplies using soft switching topologies. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.

I am an electrical engineer with having loads of experience in motor drives and motors. I can explain you the problem and the way to deal with it

Hi There I have checked your project description and understand everything. I am very confident that i can do this project perfectly. Thanks

I am electrical engineer .I have lot of experience working with various employers globally. Can I do Circuit Analysis and design, Power System Analysis,DC/AC machines Electrical Distribution , translation and technical writer .i use Autocad,Matlab,Revit,Plc simulator, Pspice,word and excel.

Hi, I am an electronics engineer and equipment and maintenance engineer for card manufacturing plant. I have plenty of experiences in troubleshooting machines with different failures including the motor driver. Hoping that you will consider me for this job post.

Hello, I'm Joao Patricio, I'm an Electronic Engineer. I work since 3 years ago with Internet of Things and other microcontroller projects. I work with circuit's design and firmware develloping Usually i Work with pic, ATmel, Arduino (Uno, Mega, Nano and Due), ESP8266 (boards like ESP12 and NodeMcu) It is impossible to know what the cause of your problem is without further analysis, so ... I'm just going to have fun with conjectures. But if it is always the same IC being damaged, obviously it lacks the proper protection. Is the board self-made or third-party? Since the IC has not been identified, I will assume that it is a microcontroller or other control IC. I see two great possibilities: 1 - There are inductive components that have not been isolated from the IC properly (such as coils and transformers), this may cause the IC to receive reverse voltages across the Ground, depending on the IC, it would simply stop working ... or it would become smoke. 2 - Transients in AC network (maybe a varistor to protect?) A bad solution for option 1 would be to place a zener diode between the VCC and GND pins of the IC. In theory, the IC would not suffer damage, but the problem would persist in the board and could run to another point in the circuit. Well, if you believe that the problem could be any of these, or that I can help you in more detail, please send me some material for analysis and we will evaluate a price for orientation, maintenance, or design a more robust board.

Hi, I have 15 years experience in motor control design and troubleshooting and would love to work on this project. Please contact and share more details. regards, Ali

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I've dealt with several troubleshooting problems related to circuit designing before. Send me the circuit diagram with datasheets of all components that you are using and I assure you that I'll find out the cause of problem and fix it for you.

I have good knowledge in embedded systems and circuit design. also experienced in pub designing and robotics. so I can done your work on email. and help you for further calls.

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