bridge with CT: can I do that?

[crazyfrog]

Hi. Unfortunately, my old transfomer burned ( shouldn't do that hobby...I'm easily distracted). I have to deal with a new one and would like to know if I can use a bridge with a CT the way it's shown on the diagram.
I first thought of a full wave for 300V and voltage doubler for 600V.
I also thought using a bridge to get 600V and start from there with a second line filter in a more "traditional way" with R-C-R-C...
Thanks
Pierre

 

[Yvesm]

Providing your transformer is around 440 to 500V center taped, this will work.

Yves.

 

[crazyfrog]

Merci de ta réponse Yves. J'ai 550V CT en fait.
(Sorry for using French, I couldn't resist...)

 

[Yvesm]

So, expect 550 * 1.414 = 777V DC off load with a CLC filter.
Try a LC or RC configuration.
Les modérateurs n'aiment pas les interventions dans une langue étrangère ici

Yves.

 

[prairieboy]

Using choke inputs, you can get two supplies, the one off the ct at 1/2 the value of the one from the bridge. The GEC book says you need chokes on both. The 'back' line from the bridge becomes your ground.

 

[crazyfrog]

Ok... The negative side of the bridge is grounded. Its positive side is used for the 600V supply and the CT becomes the "+" of the 300V supply...Since I intend to use a regulator, I'm not sure it will like that...
Thanks anyway.

 

[DF96]

You can even get a choke input supply (at 90% of RMS) and a capacitor input supply (at 141% of RMS) from each of them - by adding an extra diode to the cap input path. Four voltages from one CT secondary winding!

 

[prairieboy]

Ok... The negative side of the bridge is grounded. Its positive side is used for the 600V supply and the CT becomes the "+" of the 300V supply...Since I intend to use a regulator, I'm not sure it will like that...
Thanks anyway.

Don't see how using a regulator, or not, effects it.

 

[Yvesm]

You can even get a choke input supply (at 90% of RMS) and a capacitor input supply (at 141% of RMS) from each of them - by adding an extra diode to the cap input path. Four voltages from one CT secondary winding!

GEE ! Obvious . . . when you tell

 

[crazyfrog]

Don't see how using a regulator, or not, effects it.

Yes, you're probably right but since it's a 21st Century Maida Regulator, I'd ask to Tom before to wire that way.

 

[prairieboy]

Yes, you're probably right but since it's a 21st Century Maida Regulator, I'd ask to Tom before to wire that way.

That's a very nice regulator. I've got a couple, just haven't used them yet.