> mike <ham789@netzero.net> wrote:
>> I need an MP3 player that runs 24/7.
>> All the ones I have shut down and switch to file transfer mode
>> when you plug in USB.
>> So, I think I need a 1.5V AAA battery eliminator.
>
>> All my wall warts use a TL431 as regulator.
>
>> If I could find a replacement with 1.2V-ish reference in TO-92
>> I could just drop it in and change one resistor to get 1.5V.
>
>> What's a good cheap, shunt-regulator IC that will go down to 1.5V?
> Why not just use a LDO with 1.5 V output instead?
>
Because it needs packaging.
Because it dissipates more power than I'm comfortable with if I
build it into a dummy battery.
Reply by Peter Heitzer●January 19, 20152015-01-19
mike <ham789@netzero.net> wrote:
>I need an MP3 player that runs 24/7.
>All the ones I have shut down and switch to file transfer mode
>when you plug in USB.
>So, I think I need a 1.5V AAA battery eliminator.
>All my wall warts use a TL431 as regulator.
>If I could find a replacement with 1.2V-ish reference in TO-92
>I could just drop it in and change one resistor to get 1.5V.
>What's a good cheap, shunt-regulator IC that will go down to 1.5V?
Why not just use a LDO with 1.5 V output instead?
--
Dipl.-Inform(FH) Peter Heitzer, peter.heitzer@rz.uni-regensburg.de
HTML mails will be forwarded to /dev/null.
Reply by mike●January 18, 20152015-01-18
On 1/17/2015 7:14 PM, DecadentLinuxUserNumeroUno wrote:
> On Sat, 17 Jan 2015 04:18:49 -0800, mike wrote:
>
I thought I heard the sound of digging your hole ever deeper...
>> I need an MP3 player that runs 24/7.
>
> You mislead folks here. Nice ambiguity introduction.
Only thing ambiguous is your misinterpretation.
I stated my objective.
You're the only one who decided to wedge yourself into the thread to
force it off track. 100% denigration, 0% help...classic UNO.
>
> "an mp3 player" usually refers to software on a computer, not some lame
> toy you were stupid enough to buy one of.
You're free to misinterpret whatever you want. You're skilled at the
task...might as well flaunt your strong points.
>
>> All the ones I have shut down and switch to file transfer mode when you
>> plug in USB.
>
> Must be their OS.
Brilliant deduction!
>
> Maybe you should develop a different procedure that does not invoke that
> problem.
You mean, like making a battery eliminator?
> Or buy a better device.
You linux trolls are big on buying stuff when what you have can't be
made to work on your beloved OS...and act like that's the way it should
be. This isn't about your beloved OS...not one little bit.
You just can't help digging deeper...
>
>> So, I think I need a 1.5V AAA battery eliminator.
>
> This will abate the USB handshake mode change how?
For the third time, this is not about any OS handshake.
It's about the result of detection of 5V on the USB port of the device.
The battery eliminator lets me play the mp3s while AC powered...24/7
which was the objective and has been achieved.
When you're standing in the hole that you're digging...and you're filling
it with effluent...you should stop doing both.
But I do enjoy watching you tread effluent.
Have a UNO day.
I'm gonna sit back and listen to mp3s.
Reply by mike●January 17, 20152015-01-17
On 1/17/2015 6:53 PM, whit3rd wrote:
> On Saturday, January 17, 2015 at 4:50:10 PM UTC-8, mike wrote:
>> On 1/17/2015 12:27 PM, mike wrote:
> [about low-V output limit of a SMPS design]
>
>>>>> All my wall warts use a TL431 as regulator.
>
>> Well, there's insufficient headroom for the TLV431 or the darlington.
>
> If you want, you can use the TLV431 to program a current mirror, and
> drive the LED with the current mirror output, if this refers to the
> common TL(V)431/optoisolator feedback in an isolated switching
> power supply.
>
Sure, you can redesign the power supply.
Remember that with only 1.5V for the driver and the optoisolator,
it's not gonna be simple.
I chose the easier redesign with the NPN. Works fine.
Reply by DecadentLinuxUserNumeroUno●January 17, 20152015-01-17
On Sat, 17 Jan 2015 04:18:49 -0800, mike wrote:
> I need an MP3 player that runs 24/7.
You mislead folks here. Nice ambiguity introduction.
"an mp3 player" usually refers to software on a computer, not some lame
toy you were stupid enough to buy one of.
> All the ones I have shut down and switch to file transfer mode when you
> plug in USB.
Must be their OS.
Maybe you should develop a different procedure that does not invoke that
problem. Or buy a better device.
> So, I think I need a 1.5V AAA battery eliminator.
This will abate the USB handshake mode change how?
Reply by whit3rd●January 17, 20152015-01-17
On Saturday, January 17, 2015 at 4:50:10 PM UTC-8, mike wrote:
> On 1/17/2015 12:27 PM, mike wrote:
[about low-V output limit of a SMPS design]
> >>> All my wall warts use a TL431 as regulator.
> Well, there's insufficient headroom for the TLV431 or the darlington.
If you want, you can use the TLV431 to program a current mirror, and
drive the LED with the current mirror output, if this refers to the
common TL(V)431/optoisolator feedback in an isolated switching
power supply.
Reply by mike●January 17, 20152015-01-17
On 1/17/2015 12:27 PM, mike wrote:
> On 1/17/2015 6:26 AM, jrwalliker@gmail.com wrote:
>> On Saturday, 17 January 2015 12:19:34 UTC, mike wrote:
>>
>>> All my wall warts use a TL431 as regulator.
>>>
>>> If I could find a replacement with 1.2V-ish reference in TO-92
>>> I could just drop it in and change one resistor to get 1.5V.
>>>
>>> What's a good cheap, shunt-regulator IC that will go down to 1.5V?
>>>
>>> TL431 is 5 for a buck shipped on ebay.
>>> Closest thing I can find in 1.2V are SMT devices at $10 each shipped.
>>>
>>> Anything cheap available?
>>
>> Why not use a TLV431 which is available in TO-92 from several
>> manufacturers?
>>
>> John
>>
> Thanks, the part number is obvious once you know what it is ;-).
> The 6V max is a concern, but I can run some tests to verify that
> there aren't transients over that voltage at the chip.
> mike
Well, there's insufficient headroom for the TLV431 or the darlington.
But one NPN transistor works just fine.
Regulation and tempco are crap, but well within the range of a battery
over the environmental conditions likely to be encountered in my living
room.
And the player sounds great.
Reply by mike●January 17, 20152015-01-17
On 1/17/2015 2:56 PM, DecadentLinuxUserNumeroUno wrote:
> On Sat, 17 Jan 2015 13:01:57 -0800, mike wrote:
>
>> On 1/17/2015 5:19 AM, DecadentLinuxUserNumeroUno wrote:
>>> On Sat, 17 Jan 2015 04:18:49 -0800, mike wrote:
>>>
>>>> I need an MP3 player that runs 24/7.
>>>> All the ones I have shut down and switch to file transfer mode when
>>>> you plug in USB.
>>>
>>> VLC media player play videos, but it also plays music and FLAC, which
>>> is miles better than MP3.
>>>
>>> Another choice would be to run Linux, and not be hog tied by the
>>> stupidity Windows places on a user.
>>>
>> Another choice would be to help people do what they want to do instead
>> of trying to force your choices on them.
>
> Idiot. IF you had any clue, you would see that that is exactly what
> Windows' lame USB insertion event handling is doing.
I just love these conversations where you make a big deal over something
entirely different from what's happening.
The OS is NOT involved at all. If you plug the mp3 player into a power
supply,
it does the same thing. It works just fine with an OS for file transfer.
The mp3 player will not allow you to play mp3's when there's power on the
usb plug.
NOTHING AT ALL TO DO WITH ANY OS, NOT EVEN THE ONE YOU HATE SO MUCH!
Thanks for giving me the opportunity to rub your nose in your own
effluent. Please go back where you have peer support for your unfounded
denigration. They miss you...
>
> But I would not expect a complete and utter dumbfuck like you to get
> that FACT.
>
> The question was answered correctly.
>
> Use VLC, which ignores Windows stupidity, OR use a BETTER OS, which
> doesn't pull the stupidty WindBLOWS does.
>
> But then, you have zero grasp of what takes place in the hardware,
> because you have zero grasp of what takes place in the OS. I have doubts
> you even know how to run an application without pissing and moaning, even
> on your pathetic OS of choice.
>
> I can't say get a clue, because you lack the capacity to receive a clue,
> much less get one once you do.
>
Reply by DecadentLinuxUserNumeroUno●January 17, 20152015-01-17
On Sat, 17 Jan 2015 13:01:57 -0800, mike wrote:
> On 1/17/2015 5:19 AM, DecadentLinuxUserNumeroUno wrote:
>> On Sat, 17 Jan 2015 04:18:49 -0800, mike wrote:
>>
>>> I need an MP3 player that runs 24/7.
>>> All the ones I have shut down and switch to file transfer mode when
>>> you plug in USB.
>>
>> VLC media player play videos, but it also plays music and FLAC, which
>> is miles better than MP3.
>>
>> Another choice would be to run Linux, and not be hog tied by the
>> stupidity Windows places on a user.
>>
> Another choice would be to help people do what they want to do instead
> of trying to force your choices on them.
Idiot. IF you had any clue, you would see that that is exactly what
Windows' lame USB insertion event handling is doing.
But I would not expect a complete and utter dumbfuck like you to get
that FACT.
The question was answered correctly.
Use VLC, which ignores Windows stupidity, OR use a BETTER OS, which
doesn't pull the stupidty WindBLOWS does.
But then, you have zero grasp of what takes place in the hardware,
because you have zero grasp of what takes place in the OS. I have doubts
you even know how to run an application without pissing and moaning, even
on your pathetic OS of choice.
I can't say get a clue, because you lack the capacity to receive a clue,
much less get one once you do.
Reply by mike●January 17, 20152015-01-17
On 1/17/2015 5:19 AM, DecadentLinuxUserNumeroUno wrote:
> On Sat, 17 Jan 2015 04:18:49 -0800, mike wrote:
>
>> I need an MP3 player that runs 24/7.
>> All the ones I have shut down and switch to file transfer mode when you
>> plug in USB.
>
> VLC media player play videos, but it also plays music and FLAC, which is
> miles better than MP3.
>
> Another choice would be to run Linux, and not be hog tied by the
> stupidity Windows places on a user.
>
Another choice would be to help people do what they want to do
instead of trying to force your choices on them.
It appears that your penchant for ignoring the real world and forcing
your choices on others transcend AOLU.
VLC does not run on my MP3 player...nor does FLAC.
The quality of FLAC is IRRELEVANT, unless you're in a mood to rip
my mp3 collection again, supply the media to store it, the player for it
and the speakers good enough to let me hear the difference.
OH, I'm gonna need a better internet connection. With my current data
budget, it would take you 50 years to send it back to me.
The real world is far more complex than your tunnel vision admits.
MP3 is a standard that JUST WORKS perfectly fine enough, on virtually
every player available. Your ranting isn't gonna change the fact that,
in the real world,
JUST WORKS, GOOD ENOUGH and COMPATIBILITY
trump MILES BETTER, especially when most people wouldn't
be able to tell the difference under typical listening conditions.
Linux doesn't run on my MP3 player. Are we sensing a trend here?
Nice bit of windows bashing in a thread about a voltage regulator.
Have a very UNO day ignoring the real world.