Ideally, I need input from a vehicle battery, so I've been
using 10-15V for lots of room on either extreme.  For this
test version, I used 8-15V, so I can power if off a 9-volt
battery.

Output voltage = 12V at 1A (for this test version).

Toroid is a T130-3.  Switching freq = 100khz.

Cheers,
-Neil.





> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Roman Black
> Sent: Wednesday, March 05, 2003 2:31 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Transformer Q...
>
>
> PicDude wrote:
>
> > Primary:  23 turns of 20-awg, yielding 18.5uh, ~33 mOhms.
> > Secondary:  22 turns of 20-awg, yielding 0.96 ratio, ~32 mOhms.
>
>
> Sorry if you've already posted this info, but what
> input V and I, and what output V and I are you aiming
> for, and how big is that toroid?
> :o)
> -Roman
>
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