- #1

bob012345

Gold Member

- 706

- 173

- Summary:
- I need help understanding how to model an inverter circuit and what to expect given a circuit diagram.

As a step to a solar powered battery backup system I wish to get a better grasp on how DC to AC inverters work. This circuit shown below is a 12V DC to 120V AC inverter. I am doing ltspice simulations first and I am working from a circuit diagram included below I found online here;

https://www.elprocus.com/dc-to-ac-converter-circuit-working-applications/

It is easy to spice this up in ltspice except for the transformer part. I do not understand how to model the center tap and if the transformer is just inductors or if there are other components. Also, I tried to simulate just the 12V DC to 12V AC without the transformer but get nonsensical results.

1) Can I model just 12V DC to 12V AC without the transformer or is the transformer necessary to the circuit?

2) Will this circuit give a sine wave or a modified sine wave?

3) I need help understanding and modeling the center tap transformer part.

I'd like to understand how to get a sine wave with only transistor, caps, diodes, inductors and not using IC's if possible. Thanks for any help or advice!

https://www.elprocus.com/dc-to-ac-converter-circuit-working-applications/

It is easy to spice this up in ltspice except for the transformer part. I do not understand how to model the center tap and if the transformer is just inductors or if there are other components. Also, I tried to simulate just the 12V DC to 12V AC without the transformer but get nonsensical results.

1) Can I model just 12V DC to 12V AC without the transformer or is the transformer necessary to the circuit?

2) Will this circuit give a sine wave or a modified sine wave?

3) I need help understanding and modeling the center tap transformer part.

I'd like to understand how to get a sine wave with only transistor, caps, diodes, inductors and not using IC's if possible. Thanks for any help or advice!