In designing a power supply for my current prodject, I am questioning a couple of things someone may be able to answer for me?
Although I have ample heater taps on my pwr trans, I was wandering if I use another filament transformer that I have instead of using all of the heater taps on my supply trans if it would help take some of the load off of my main transformer?
I know that it would reduce the heat factor somewhat, but what Im getting at is I plan on pushing the b+ winding a bit into the upper limits. By taking some of the load off of the main tranny heater windings couldnt I push the b+ a little more? How does the load on one winding affect the other? Thanks to all who take time to post replies in advance!
Although I have ample heater taps on my pwr trans, I was wandering if I use another filament transformer that I have instead of using all of the heater taps on my supply trans if it would help take some of the load off of my main transformer?
I know that it would reduce the heat factor somewhat, but what Im getting at is I plan on pushing the b+ winding a bit into the upper limits. By taking some of the load off of the main tranny heater windings couldnt I push the b+ a little more? How does the load on one winding affect the other? Thanks to all who take time to post replies in advance!
You certainly could do this, as a transformers main rating is VA ( volt*amps) By having filaments powered by another tranny you will reduce the load somewhat.
The best way to tell is heat- if your transformer is too hot to touch after an hour then you are drawing too much from it. Also regulation is another thing- if you are approaching the limits of the core, the voltage will be all over the place...
The best way to tell is heat- if your transformer is too hot to touch after an hour then you are drawing too much from it. Also regulation is another thing- if you are approaching the limits of the core, the voltage will be all over the place...
That depends on how the transformer is made. If the wire used for the B+ winding is just thick enough for the rated current, you can't get more current from it (it will just get too hot and break).Dr.Frankenstein said:
If the wire is thicker than needed, then you can get more current from one winding, if you don't load the other windings.
Best regards,
Mikkel C. Simonsen
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