Cheap and simple control circuit for a single phase induction motor using PWM and IGBTs

The bootstrap driving 16V can easily be taken from main AC supply by using transformer less power supply. Only a small capacitor and some passives will do it nicely. 16V can be generated from 5V but problem is the isolation level. Unless a moderate sized transformer is built (at least 8-12mm in size) for this job, the actual isolation voltage wont be enough for it. Hence simply capacitor oriented voltage source will be fine for it at the AC side. As you are going to drive the IGBT driver from arduino 5V source so there will be no problems. Will design the schematic and build the PCB for it. However, if you want me to to test the complete system then component costing would be extra, however I have added the time for it but not the price. However schematic design will be ready in 3 days and hopefully next 2 days for the PCB layout. I have 230V AC / 50Hz electricity and have access to my 1HP water pump motor (with capacitor startup) so can test how this chopper works. Lets do it. Will really be an interesting thing to work on hence I am looking forward. Thanks a lot. Regards... Roy

Hello, I have been associated with Hardware design (Circuit / Electronics design), PCB design, PCB Manufacturing, Component procurement, PCB Assembling and Functional testing for over 7 years. I have used various CAD/EDA tools for PCB design. Would you prefer any specific EDA tool for PCB design (or) any tool is okay? I will provide the PCB Manufacturing, Component procurement, PCB Assembling & Functional testing services. I look forward to hearing from you! Wish you a nice day! Thanks & Regards, Karthik

Hi, I am a post graduate power electronics engineer and having excellent design and development knowledge in power supplies,SMPS,DC-DC,AC-DC,Battery chargers design using different topologies like flyback,push pull,boost,buck,Forward and buck boost. I have design experience in control circuits and gate drive circuits design for MOSFET,IGBT and thyristors.I understand your requirement and ready to work for you. Please contact me for further discussion.

Hi, I am perfect for this job. Triac is the good choice, I assume, for controlling this motor. I can prototype and show you if paid 50USD extra. Please reply if you consider. Thanks, Sam

Great Project !!, I have seen and understand all your requirements. I have very strong expertise in it although I have a great experience in it, I have intelligence, energy and integrity. Once give me work, I assure you , you'll surely like my work. Please open chat window to discuss further.

Hello! I am a talented Electrical Engineer and Electronics Scientist looking to be hired. Throughout my career I have been working with Electrical Engineering, Electronics and Engineering for many companies around the world. I have also worked as a Microcontroller Programmer and PCB Layout Designer. I have had dramatic results with my previous employers and promise to deliver the same for your company if outsourced. I am ready to be hired by you. Thanks regards robin.

Hello First of all. You need 15V Gate-to-Source Voltage, even 11-13V is enough. Maybe “transformer to power these from mains takes way too much pcb space”, but get +11-13V from +5V by using H-bridge is difficult to do, isolated dc-dc is expensive way (and if youwant take input 5V from CPU supply – it is bad idea). Second. What do you expect to get “Assemble and test a prototype". email/skype?

Professional engineer is interested ............................................................................................

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am graduate engineer and insallh i will done for you.................................................................................................................................

Dear Valued Employer, My name is Martin Botsov and I am an engineering physicist with extensive experience in the field of circuit design, circuit prototyping and PCB design. If I have understood correctly the project description you require a circuit which is able to provide power supply volatges to the IGBT driver chip from the schematic drawing. And in addtition to that it has to be with a minimum number of components and it has to take as little as possible board space. Well, In that case I believe I may have a solution that matches to your criteria. So, without further ado here's how the workflow would look like, if you happen to choose me as a partner for your project: 1. Initial discussion 2. Initial draft (based on initial disscution) 3. Mock-up assembly 4. Test and measure 5. Components library creation 6. Schematic drawing 7. Review of schematic drawing I could continue talking about your project with diagrams, digits and an actual solution, but unfortunately this bid proposal has a limit of 1500 characters only. So, I'll stop here. Don't hesitate to contact me with questions regarding any details around your project. I am looking forward to hearing from you soon. Thank you for your time. Kind Regards Martin Botsov

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Hi, i am an electronic engineer graduated from Sri lanka, i can get this done with SI/PI simulations to verify the functionality before manufacturing. Lets have a chat

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A proposal has not yet been provided

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i have experianced team to do the task.

Hi, I am an electrical engineer and expert in power electronics. I have done many projects related to power electronics like buck-boost converter single phase and multi-phase inverter etc. I assure you I will complete the project according to your requirements. Thanks.

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Hi sir, am well familiar with the working of IGBTs, I'll also design a transformer-less power supply using power transistors, it really a pretty simple design and reliable.