With your basic FWD circuit essentially 2 capacitors, or 2 banks of capacitors,
get alternately charged by a single transformer by 2 diode strings. The entire
cap banks is then charged at a rate of 60 Hz. In contrast a FWB charges the cap
bank at a 120 Hz rate.
For my amplifier I am going to use two identical transformers. I was planning on
wiring their secondaries in series and feeding a conventional FWD circuit. Then
yesterday I started thinking: What if I did not series connect the xfmrs but
instead, had each xfmr feed it's own FWB rectifier. This makes essentially 2
separate (pulsating) DC supplies. Now, what if each "supply" charged each of the
2 banks of series connected capacitors that normally make up a FWD circuit? Each
bank is now being charged at a 120 Hz rate, but I am still getting 2.8 times the
RMS of the 2 transformers across the two banks of caps. Would this work?
The advantage over a conventional doubler circuit is the cap banks is charged
120
times per second as apposed to only 60 times a second.
Mike K6MDS
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|