[sdiy] PSU problem

[Oren Leavitt]

If you're limited to a single 16 VAC transformer, your best option will 
be a half wave voltage doubler, and sufficiently large input filter caps 
for the half wave ripple.
Look up "bipolar supply from single transformer" for numerous examples.

- Oren

On 5/28/2014 2:46 PM, Carlos Portela wrote:
> I was using as a reference to solve this problem the mfos wall wart
> power supply.
> They don't use the center tap. Whats the diference between this to designs?
>
> 2014-05-28 21:34 GMT+02:00 Oren Leavitt <obl64 at ix.netcom.com>:
>> Help me - I'm floating!
>>
>> At a quick glance, it looks like you need a center tapped AC supply with the
>> center tap connected to GND. Something around 32 VCT - 16 VAC rectified to
>> each side.
>>
>> What is this power supply for?
>>
>> - Oren
>>
>>
>> On 5/28/2014 2:12 PM, Carlos Portela wrote:
>>>
>>> Hi all,
>>>
>>> Can someone help me with this layout?
>>>
>>> http://imageshack.com/a/img842/5091/ltqsj.jpg
>>>
>>> I get +11v and -13v (more or less)
>>> There's probably something wrong but I cant figure out what.
>>>
>>> Thanks in advance
>>> _______________________________________________
>>> Synth-diy mailing list
>>> Synth-diy at dropmix.xs4all.nl
>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>
>> _______________________________________________
>> Synth-diy mailing list
>> Synth-diy at dropmix.xs4all.nl
>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>