Hi:
I am attempting to simulate a simple power supply circuit but it isn't working correctly. Can someone
please advise where I have gone wrong. Thanks.

 

Welcome to AAC!

What is your concept of "it isn't working correctly "?

In other words, you have to tell us more as to what it does and what it does not.

 

Well, if you are expecting DC at the output, you are missing a component.

Bob

 

Well, if you are expecting DC at the output, you are missing a component.

Bob

And the component is?

 

And the component is?

A capacitor, to convert the rectified AC into DC with some ripple.
Then to eliminate the ripple you can use either a lowpass filter, or a voltage regulator

 

The size of the capacitor is determined by the load current and how much ripple voltage you can tolerate.

 

The size of the capacitor is determined by the load current and how much ripple voltage you can tolerate.

I put a 470uF electrolytic across the output. Still 0V dc.

 

Hi:
I am attempting to simulate a simple power supply circuit but it isn't working correctly. Can someone
please advise where I have gone wrong. Thanks.

View attachment 211803

I just used 1N4148 because it was handy.
Also- make sure your diode models are correct.

 

I just used 1N4148 because it was handy.
Also- make sure your diode models are correct.

View attachment 211815

Thanks. I have no idea about the models. It is hard to find models, let alone ones that actually work.

 

Thanks. I have no idea about the models. It is hard to find models, let alone ones that actually work.

I am surprised at the dc waveform, not what I was expecting.

 

what were you expecting?

You'll get better responses if you give us your thinking.

what models did you try that didn't work?

 

why are the dc measurements all zerp?

 

That's called ripple.

 

That's called ripple.

Mods Note :
The inappropriate language was deleted.

 

why are the dc measurements all zero?

Are you running a transient analysis, over a period which covers several cycles?

 

I think the screen shot shows operating point analysis, which would explain the results.

Bob