I've got a toroidal core, and I'm planning on winding it with pulsed
12VDC on the primary, and want to get out 50V on the secondary, center
tapped so I can get +/- 25V.
The 12VDC will be provided from a 555 switching a power MOSFET at 10
kHz, 50% duty cycle.
I'm hoping to get a maximum of 100W out of the secondary, so the
secondary will be carrying 2 amps, and the primary will be carrying
about 8 amps. I'll be using 22 gauge wire. (A little thin, I know,
but it'll do at least for small scale tests at around 50W.)
12V / sqrt(2) = 8.5 V RMS. (Does this apply for pulsed square waves?)
50V / 8.5 = 5.9, so if the primary is of length X, the center-tapped
secondary should be of length 5.9X, right?
How many turns of primary are necessary for the transformer to work?
In theory, only one turn of wire would be necessary (and then I'd need
6 turns on the CT secondary), but I know this is hogwash. How do I
know how many turns I will need on the primary?
Thanks,
Michael
|
