On Monday, March 27, 2023 at 1:57:18 PM UTC-4, John Larkin wrote:
> On Mon, 27 Mar 2023 15:19:38 +0100, Fredxx <fre...@spam.uk> wrote:
>
> >On 27/03/2023 09:17, Paul wrote:
> >> On 3/26/2023 10:38 PM, Fredxx wrote:
> >>> On 27/03/2023 01:56, Commander Kinsey wrote:
> >>>> I have a centre tapped transformer I wanted to get the most power out
> >>>> of. Thinking a traditional full wave rectifier (just a diode on each
> >>>> side, calling the centre tap 0V at the output) is only running
> >>>> current through one half of the secondary at a time, which is
> >>>> inefficient (think of P=i^2R), I thought about putting a bridge
> >>>> rectifier on each half, then connecting the result in parallel. I
> >>>> made the following diagram by adjusting someone else's, so it may
> >>>> look a bit odd.
> >>>>
> >>>> https://i.imgur.com/d2TfZYO.jpg
> >>>>
> >>>> I'm a bit confused here because you can trace the current flow and
> >>>> show the output has both 24V (if the current goes through the "wrong"
> >>>> bridge on the way back) and 12V at the same time, which isn't
> >>>> possible. Can someone explain what would happen in this circuit?
> >>>>
> >>>> Any way to make this work? I want current flowing through both
> >>>> halves of the secondary all the time. But I want half the full
> >>>> secondary's voltage.
> >>>
> >>> No, you will get 24V rectification. Only the LHS 2 of the top 4 diodes
> >>> will be conducting, and the RHS 2 of the bottom 4 diodes. The rest
> >>> will be entirely superfluous.
> >>>
> >>> You need to get into LT Spice. It's free. A man of your claimed IQ
> >>> should have no problem in confirming my presumption, or even proving
> >>> me wrong.
> >>>
> >>> If you want 12V then use:
> >>>
> >>> https://circuitspedia.com/wp-content/uploads/2022/03/12-0-12-power-supply-circuit.png
> >>>
> >>> It doesn't make full use of the copper so you may have to down-rate
> >>> the transformer a little.
> >>>
> >>> For different topologies:
> >>>
> >>> https://circuitspedia.com/center-tapped-transformer-connection-diagram/
> >>
> >> And whether filtered or unfiltered, the output is *unregulated*.
> >>
> >> The output varies as a function of the load current.
> >>
> >> Slapping a regulator on the output, makes an output suited
> >> to driving a digital logic circuit. The regulator can be
> >> an SMPS (efficient) or a linear regulator (inefficient).
> >> Linear regulators are easier for hobbyists to assemble.
> >>
> >> https://electrosome.com/variable-power-supply-lm317-voltage-regulator
> >>
> >> And while just about every web page shows "1N4007" as The Diode, no,
> >> there are other choices you can buy. The reason a lot of 1N4000 series
> >> diodes get used, is because hobbyists can buy a bag with a considerable
> >> number of them, for not a lot of money. But you can also get
> >> wafer-style full wave bridge rectifiers, that will plug into your pegboard.
> >> This handles a slight bit more current. The reason I picked this, is
> >> I used something similar in my amp for the computer speakers.
> >>
> >> https://www.nteinc.com/specs/53000to53099/pdf/nte53006_10.pdf
> >
> >It would be most helpful to understand what Mr Hucker, AKA Kinsey, is
> >trying to do.
> >
> He's a civilian, not an actual commander?

He's lost command of his senses.

On Mon, 27 Mar 2023 11:09:31 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>On Monday, March 27, 2023 at 1:57:18?PM UTC-4, John Larkin wrote:
>> On Mon, 27 Mar 2023 15:19:38 +0100, Fredxx <fre...@spam.uk> wrote:
>>
>> >On 27/03/2023 09:17, Paul wrote:
>> >> On 3/26/2023 10:38 PM, Fredxx wrote:
>> >>> On 27/03/2023 01:56, Commander Kinsey wrote:
>> >>>> I have a centre tapped transformer I wanted to get the most power out
>> >>>> of. Thinking a traditional full wave rectifier (just a diode on each
>> >>>> side, calling the centre tap 0V at the output) is only running
>> >>>> current through one half of the secondary at a time, which is
>> >>>> inefficient (think of P=i^2R), I thought about putting a bridge
>> >>>> rectifier on each half, then connecting the result in parallel. I
>> >>>> made the following diagram by adjusting someone else's, so it may
>> >>>> look a bit odd.
>> >>>>
>> >>>> https://i.imgur.com/d2TfZYO.jpg
>> >>>>
>> >>>> I'm a bit confused here because you can trace the current flow and
>> >>>> show the output has both 24V (if the current goes through the "wrong"
>> >>>> bridge on the way back) and 12V at the same time, which isn't
>> >>>> possible. Can someone explain what would happen in this circuit?
>> >>>>
>> >>>> Any way to make this work? I want current flowing through both
>> >>>> halves of the secondary all the time. But I want half the full
>> >>>> secondary's voltage.
>> >>>
>> >>> No, you will get 24V rectification. Only the LHS 2 of the top 4 diodes
>> >>> will be conducting, and the RHS 2 of the bottom 4 diodes. The rest
>> >>> will be entirely superfluous.
>> >>>
>> >>> You need to get into LT Spice. It's free. A man of your claimed IQ
>> >>> should have no problem in confirming my presumption, or even proving
>> >>> me wrong.
>> >>>
>> >>> If you want 12V then use:
>> >>>
>> >>> https://circuitspedia.com/wp-content/uploads/2022/03/12-0-12-power-supply-circuit.png
>> >>>
>> >>> It doesn't make full use of the copper so you may have to down-rate
>> >>> the transformer a little.
>> >>>
>> >>> For different topologies:
>> >>>
>> >>> https://circuitspedia.com/center-tapped-transformer-connection-diagram/
>> >>
>> >> And whether filtered or unfiltered, the output is *unregulated*.
>> >>
>> >> The output varies as a function of the load current.
>> >>
>> >> Slapping a regulator on the output, makes an output suited
>> >> to driving a digital logic circuit. The regulator can be
>> >> an SMPS (efficient) or a linear regulator (inefficient).
>> >> Linear regulators are easier for hobbyists to assemble.
>> >>
>> >> https://electrosome.com/variable-power-supply-lm317-voltage-regulator
>> >>
>> >> And while just about every web page shows "1N4007" as The Diode, no,
>> >> there are other choices you can buy. The reason a lot of 1N4000 series
>> >> diodes get used, is because hobbyists can buy a bag with a considerable
>> >> number of them, for not a lot of money. But you can also get
>> >> wafer-style full wave bridge rectifiers, that will plug into your pegboard.
>> >> This handles a slight bit more current. The reason I picked this, is
>> >> I used something similar in my amp for the computer speakers.
>> >>
>> >> https://www.nteinc.com/specs/53000to53099/pdf/nte53006_10.pdf
>> >
>> >It would be most helpful to understand what Mr Hucker, AKA Kinsey, is
>> >trying to do.
>> >
>> He's a civilian, not an actual commander?
>
>He's lost command of his senses.

If I were named Hucker, I might shop around.