theking2725

hi everyone,i have some project and i need help with if u can help i will be grateful to all of u;the project is a very popular one but i am not familiar wid it it is as following;
In this project, you will design and implement a DC to three-phase inverter.
In other words your circuit will generate three-phase alterna g current from
a DC power supply,the available components for us is transistors transformers opamps ua 741 only high power resistors capacitors not likely but we can use inductor better not but if we must yes,but we need at least %25 efficiency
if everyone has done a similar project or if anyone can help me i will be grateful thx waiting ur mails bye thx

blueroomelectronics

What's the emergency? The 741 is over 100yrs old according to audioguru

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Bill
Smart Kits build Smart People
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john1

maybe its centenary celebrations are imminent ...

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Papabravo

The vacuum triode's 100th was last year. I think the 741 has a ways to go for the century mark.

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theking2725

it means that i need help and quickly about that project i wrote

Torben

We know what the word "emergency" means? What they're asking is "why is it so urgent?"

Why is it so urgent? It just looks like a school assignment to me.


Torben

theking2725

o yes its my labarotary project ,for sure and i have some ideas but i couldnt collected them first step is to get i think 3 square waves wid approximately 120 degrees difference but i dont know how this circuit is constructed , after i think there should be some filtering to get sinusoids but for example i dont know where to use the transistor i guess it is for increase the efficieny well,it will be grateful that u help me thx

rjvh

exept for the first and last sentence it looks more like a tender document for a job

what did the teacher explain you already so far??

the aproach i would have is make a oscilator and delay and separate the signal so that you have 3 signals that are shifted 120 degrees from each other and feed that in a push/pull circuit that feed the 3 diferent transformers

Robert-Jan

rjvh

first make a block diagram where each part of the circuit is represented than look block for block to make it
Block one: oscilator
block two: splitting signals and delay them from each other
Block three: push/pull circuit and transformer


Sucsess
Robert-Jan