sinewave inverter circuit

[joelyoung]

Hello everybody I am asking could someone assist us who need to get a pure sine wave circuit to build . I have been hunting for months online to get a circuit and cant find one that is complete and is practical. SOme we see the parts cannot be had. Could someone break the silence on this circuit . All we can hear is it is hard to build and people give us pieces here and there could someone link me to a pratical site of a sine wave inverter > i would be grateful. Thank you all and have a great day

 

[joelyoung]

Thank you my friend I appreciate this I will see if I can get the parts because I dont know how to get the crystal to buy. Have you built this one and is it a pure sine wave inverter looking for your reply. Thank you

 

[Tahmid]

Here is one: Pure sine wave inverter

Hope this helps.
Tahmid.

 

[joelyoung]

Thank you very much my friend I really appreciate your help. The only thing i see now is the problem they were having with the project with the dropping of the voltage with higher loads. Do you know how to design a close loop circuit for this circuit so as to prevent this. and they did not give you the circuit to produce the 170v for the output. I think if I get those two problems out of the way I will try this one tomorrow. Have you built it before. I really need this inverter to power my house and to run my washing machine. I have built the 250 to 5000 watt modified sine wave inverter found on the net but I need the pure sine for some of my appliances. Please help me on this one I would really appreciate . Thank you

 

[Tahmid]

I haven't made it myself but it has been used as a reference by quite a lot of people on different sites. Up to now, I haven't read anyone saying that it doesn't work.

 

[andre_luis]

joelyoung,


I can advise that washing machines are heavy loads to plug at sinusoidal inverters, even if it was been oversized.
However, in order to provide a regulated output, you can do by PID control.

Take a look here for further information :
https://www.edaboard.com/threads/238874/#post1021845

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[joelyoung]

thank you my friend i know this circuit will work but I just want to know how to connect a cloose loop circuit to this circuit so it can handle heavier loads. Can anyone help me on this i would really apprerciate. waiting for a reply. Thank you

 

[joelyoung]

hello my friend I am still waiting to see if you can refer me to a close loop circuit that can work for that project u refer me to. thank you