Three phase sine wave generator circuit diagram generates three sine waves. Each sine wave output can be seen easily at the output points. You can use oscilloscope to see sine waves at three output. Three phase sine wave generator can be used to generate reference signal in three-phase sine wave inverter to obtain sinusoidal pulse width modulation for three-phase sine wave inverter. you can also adjust frequency by adjusting values of components used in this circuit diagram. I have  posted many articles on pure sine wave inverter. You can check following articles:
- Pure sine wave inverter
- modified sine wave inverter
- Square wave inverterÂ
- solar inverter using sg3525
Circuit diagram of three-phase sine wave generator:
Circuit diagram of three phase sine wave generator is given below. Circuit diagram has been made with simple electronics components like transistors and resistors.
Three output taps can be used to see output sin waves produced by this circuit diagram of three-phase sine wave generator. Three phase sine wave generator have many applications in industrial devices. Resistors and capacitors values can be adjusted to change frequency of three-phase sine wave generator. single pole single through switch is used to turn on or turn of circuit. 9 volt battery is used to power this circuit. List of components are given below.
List of components:
Category,Reference,Value,Order Code Resistors,"R1",22k, Resistors,"R2",22k, Resistors,"R3",22k, Resistors,"R4",1.5k, Resistors,"R5",1.5k, Resistors,"R6",1.5k, Capacitors,"C1",1uF, Capacitors,"C2",1uF, Capacitors,"C3",1uF, Transistors,"Q1",BC547, Transistors,"Q2",BC547, Transistors,"Q3",BC547, Miscellaneous,"BAT1",9V, All list of components used in this circuit is given above. I have already mentioned applications of three-phase sine wave generator. Working of this circuit is very simple. Resistor and capacitor forms a oscillator combination which is in turn generate three sine waves. Three BC547 npn transistors are used in this circuit. values of resistor and capacitor can be adjusted according to requirement.
In this three-phase generator I want to ask you how I can get a much more amplifiering signal.
I can use a TCP 122 for amplifiering or some other ( much more) but I’m not sure how to make the connections.
Please, would you like to show me how can I do this amplifiering.
I would be grateful if you designed it entirely by adding this plan already.
Thank you
P.I
I built this circuit and it certainly wasn’t giving me a sine wave. More of a saw tooth with dead time
you need to play with values of capacitors
MINE WORKED – WHICH FOR THREE TRANSISTORS – QUITE GOOD
It worked – How is the frequency calculated?