.5 vdc to 3 vdc max 500ma power supply schematic/chip nee

[no one]

hi anybody got info on a :

..5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

 

[kreed]

On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:

hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic  ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.


If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

 

[Trevor Wilson]

kreed wrote:

On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark


Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.


If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be varied down
to zero Volts. It is not quite as simple as using a single chip regulator
however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilson
www.rageaudio.com.au

 

[Trevor Wilson]

kreed wrote:

On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:
kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be
varied down to zero Volts. It is not quite as simple as using a
single chip regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

**It's difficult to understand the original poster's requirements, as he/she
appears to be severely illiterate. You could be correct. Subsequent posts
from the OP have done nothing to clarify. I would encourage the OP to find
someone whose first language is English and ask them to translate the
request from their native language.


--
Trevor Wilson
www.rageaudio.com.au

 

[no one]

hi, was point 5 vdc to 3 vdc , i dont a bit more reasearch and i
actually need 2 vdc @ 250 - 350 ma.,
thansk,
mark


"Trevor Wilson" <trevor@rageaudio.com.au> wrote in message
news:8teeijF1phU1@mid.individual.net...

kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark


Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.


If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be varied
down to zero Volts. It is not quite as simple as using a single chip
regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilson
www.rageaudio.com.au

 

[kreed]

On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:

kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking   0.5v to 3v  or 5v to 3v  ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem.  You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be varied down
to zero Volts. It is not quite as simple as using a single chip regulator
however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

 

[no one]

whats so hard about understanding : " .5vdc to 3 vdc 400ma max power
supply schematic/ ic ? "

cant you see the decimal point in front of the 5 ??...

now where did i say that " I thought originally that he wanted to
convert a 0.5v source

voltage UP to 3v.

i never even hinted or said i wanted to convert ...

hey trevor are you screwing phil ?


u need to go over your basic english reading skills,,




"Trevor Wilson" <trevor@rageaudio.com.au> wrote in message
news:8tem4vFigsU1@mid.individual.net...

kreed wrote:
On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:
kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be
varied down to zero Volts. It is not quite as simple as using a
single chip regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

**It's difficult to understand the original poster's requirements, as
he/she appears to be severely illiterate. You could be correct. Subsequent
posts from the OP have done nothing to clarify. I would encourage the OP
to find someone whose first language is English and ask them to translate
the request from their native language.


--
Trevor Wilson
www.rageaudio.com.au

 

[no one]

hey trevor , you got any wooden volume control knobs on your website ,
to give my amp that smooooth sound ???


"Trevor Wilson" <trevor@rageaudio.com.au> wrote in message
news:8tem4vFigsU1@mid.individual.net...

kreed wrote:
On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:
kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be
varied down to zero Volts. It is not quite as simple as using a
single chip regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

**It's difficult to understand the original poster's requirements, as
he/she appears to be severely illiterate. You could be correct. Subsequent
posts from the OP have done nothing to clarify. I would encourage the OP
to find someone whose first language is English and ask them to translate
the request from their native language.


--
Trevor Wilson
www.rageaudio.com.au

 

[kreed]

On Mar 6, 11:45 am, "no one" <krawc...@adam.com.au> wrote:

whats so hard about understanding  :  "   .5vdc to 3 vdc 400ma max power
supply schematic/ ic ? "

cant you see the decimal point in front of the  5 ??...

now where did i say  that "    I thought originally that he wanted to
convert a 0.5v source

voltage UP to 3v.

i never  even hinted or said  i wanted to convert ...

hey trevor are you screwing phil ?

u need to  go over your basic english reading skills,,

Trevor gave you the correct answer and a link in comment #3
So why get agro ?

"Trevor Wilson" <tre...@rageaudio.com.au> wrote in message

news:8tem4vFigsU1@mid.individual.net...

kreed wrote:
On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:
kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be
varied down to zero Volts. It is not quite as simple as using a
single chip regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

**It's difficult to understand the original poster's requirements, as
he/she appears to be severely illiterate. You could be correct. Subsequent
posts from the OP have done nothing to clarify. I would encourage the OP
to find someone whose first language is English and ask them to translate
the request from their native language.

--
Trevor Wilson
www.rageaudio.com.au

 

[no one]

ummm read this from trvor :

**It's difficult to understand the original poster's requirements, as he/she
appears to be severely illiterate. You could be correct. Subsequent posts
from the OP have done nothing to clarify. I would encourage the OP to find
someone whose first language is English and ask them to translate the
request from their native language.



"kreed" <kenreed1999@gmail.com> wrote in message
news:cc074b0c-dbbe-467e-b9c1-e138dc33be9d@f15g2000pro.googlegroups.com...
On Mar 6, 11:45 am, "no one" <krawc...@adam.com.au> wrote:

whats so hard about understanding : " .5vdc to 3 vdc 400ma max power
supply schematic/ ic ? "

cant you see the decimal point in front of the 5 ??...

now where did i say that " I thought originally that he wanted to
convert a 0.5v source

voltage UP to 3v.

i never even hinted or said i wanted to convert ...

hey trevor are you screwing phil ?

u need to go over your basic english reading skills,,

Trevor gave you the correct answer and a link in comment #3
So why get agro ?

"Trevor Wilson" <tre...@rageaudio.com.au> wrote in message

news:8tem4vFigsU1@mid.individual.net...

kreed wrote:
On Mar 5, 7:36 pm, "Trevor Wilson" <tre...@rageaudio.com.au> wrote:
kreed wrote:
On Mar 5, 7:16 pm, "no one" <krawc...@adam.com.au> wrote:
hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

mark

Are you talking 0.5v to 3v or 5v to 3v ?

If 5.0v then use an LM317 regulator.
You can easily use this to do what you want with just a couple of
resistors and capacitors.

http://www.circuit-innovations.co.uk/LM317.html
Here is one example that is exactly what you need, and shows the
formula for calculating resistor
values for any output voltage that you want. within limits of the
device and supply voltage of course.

If it is 0.5v DC, you have a big problem. You will need a switchmode
converter.

**Nonsense. It is quite easy to build a power supply that can be
varied down to zero Volts. It is not quite as simple as using a
single chip regulator however.

http://www.national.com/ds/LM/LM117.pdf

Page 17.

--
Trevor Wilsonwww.rageaudio.com.au

Agree, I thought originally that he wanted to convert a 0.5v source
voltage UP to 3v.

That would need a switchmode type device, and would be more difficult
to design and build.

**It's difficult to understand the original poster's requirements, as
he/she appears to be severely illiterate. You could be correct.
Subsequent
posts from the OP have done nothing to clarify. I would encourage the OP
to find someone whose first language is English and ask them to
translate
the request from their native language.

--
Trevor Wilson
www.rageaudio.com.au

 

[Mick DaDik]

Hi No-One,

now where did i say that " I thought originally that he wanted to
convert a 0.5v source
voltage UP to 3v.

i never even hinted or said i wanted to convert ...

Its all in the ambiguity of your intial statement... it can be read 2
ways...

I quote

hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

It can mean 0.5VDC to 3VDC Variable or 0.5VDC input and 3VDC Output.

I must admit I thought the latter when I read it and wondered what the
0.5VDC source would have been.

Anyway I hope you have your answer now .

Regards,

Mick

 

[Mick DaDik]

Noone...

You really need to get a grip...

Your english is in need of a lesson..

No one (not even you NO-ONE).. Said .5v AND 3V.. If you had (or
inferred) ....AND.... you would, presumably, get answers that provide a
..5V output AND a 3V output...

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.

..5v TO 3V can mean .5V in to 3V out. As in 240VAC to 12VDC

it can also mean

Variable between .5v and 3V. (with inference on The output voltage)

I find it hard to believe that you cannot bring yourself to see that
glaring amiguity, but instead jump down peoples throats for asking for
more information on your problem.

You seriously are not going about things the right way if you are in
need of answers ... People (except those wanting to inflame) would just
ignore you.

so when you see 1 vdc to 30 v power supply for sale , you automatically
think its 1v and 30 ??

yeah
okay

No... its more obvious there due to the huge step up range and the fact
that `power supply' is mentoned AFTER the range ..... but the ambiguity
still (technically) exists but because of the way it is said the
automatic inferrence is a variable output...


The bottom line is If you want answers .. be nice... if you want to play
games go about things the way you are..

Regards,

Mick

 

[no one]

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.

so when you see 1 vdc to 30 v power supply for sale , you automatically
think its 1v and 30 ??

yeah
okay


"Mick DaDik" <Monkeymik@yahoo.com> wrote in message
news:AaGcp.12082$gM3.9561@viwinnwfe01.internal.bigpond.com...

Hi No-One,

now where did i say that " I thought originally that he wanted to
convert a 0.5v source
voltage UP to 3v.

i never even hinted or said i wanted to convert ...

Its all in the ambiguity of your intial statement... it can be read 2
ways...

I quote

hi anybody got info on a :

.5vdc to 3 vdc 400ma max power supply schematic/ ic ?

It can mean 0.5VDC to 3VDC Variable or 0.5VDC input and 3VDC Output.

I must admit I thought the latter when I read it and wondered what the
0.5VDC source would have been.

Anyway I hope you have your answer now .

Regards,

Mick

 

[Rheilly Phoull]

On 3/6/2011 5:12 PM, Mick DaDik wrote:

Noone...

You really need to get a grip...

Your english is in need of a lesson..

No one (not even you NO-ONE).. Said .5v AND 3V.. If you had (or
inferred) ....AND.... you would, presumably, get answers that provide a
.5V output AND a 3V output...

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.


.5v TO 3V can mean .5V in to 3V out. As in 240VAC to 12VDC

it can also mean

Variable between .5v and 3V. (with inference on The output voltage)

I find it hard to believe that you cannot bring yourself to see that
glaring amiguity, but instead jump down peoples throats for asking for
more information on your problem.

You seriously are not going about things the right way if you are in
need of answers ... People (except those wanting to inflame) would just
ignore you.

so when you see 1 vdc to 30 v power supply for sale , you automatically
think its 1v and 30 ??

yeah
okay


No... its more obvious there due to the huge step up range and the fact
that `power supply' is mentoned AFTER the range ..... but the ambiguity
still (technically) exists but because of the way it is said the
automatic inferrence is a variable output...


The bottom line is If you want answers .. be nice... if you want to play
games go about things the way you are..

Regards,

Mick

Hey Mick
We can only hope the onrush of teenage hormones will abate a bit in a
few years and then perhaps with some life experience under it's belt
there may be some improvement in manners and knowledge.

Rheilly P

 

[Trevor Wilson]

Rheilly Phoull wrote:

On 3/6/2011 5:12 PM, Mick DaDik wrote:
Noone...

You really need to get a grip...

Your english is in need of a lesson..

No one (not even you NO-ONE).. Said .5v AND 3V.. If you had (or
inferred) ....AND.... you would, presumably, get answers that
provide a .5V output AND a 3V output...

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.


.5v TO 3V can mean .5V in to 3V out. As in 240VAC to 12VDC

it can also mean

Variable between .5v and 3V. (with inference on The output voltage)

I find it hard to believe that you cannot bring yourself to see that
glaring amiguity, but instead jump down peoples throats for asking
for more information on your problem.

You seriously are not going about things the right way if you are in
need of answers ... People (except those wanting to inflame) would
just ignore you.

so when you see 1 vdc to 30 v power supply for sale , you
automatically think its 1v and 30 ??

yeah
okay


No... its more obvious there due to the huge step up range and the
fact that `power supply' is mentoned AFTER the range ..... but the
ambiguity still (technically) exists but because of the way it is
said the automatic inferrence is a variable output...


The bottom line is If you want answers .. be nice... if you want to
play games go about things the way you are..

Regards,

Mick


Hey Mick
We can only hope the onrush of teenage hormones will abate a bit in a
few years and then perhaps with some life experience under it's belt
there may be some improvement in manners and knowledge.

**Sadly, I fear the written communication skills of young people may never
amount to anything worth a damn. As can be seen from this thread, this is a
potentially extremely serious situation.


--
Trevor Wilson
www.rageaudio.com.au

 

[Dennis]

"Trevor Wilson" <trevor@rageaudio.com.au> wrote in message
news:8tj597Fk1fU1@mid.individual.net...

Rheilly Phoull wrote:
On 3/6/2011 5:12 PM, Mick DaDik wrote:
Noone...

You really need to get a grip...

Your english is in need of a lesson..

No one (not even you NO-ONE).. Said .5v AND 3V.. If you had (or
inferred) ....AND.... you would, presumably, get answers that
provide a .5V output AND a 3V output...

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.


.5v TO 3V can mean .5V in to 3V out. As in 240VAC to 12VDC

it can also mean

Variable between .5v and 3V. (with inference on The output voltage)

I find it hard to believe that you cannot bring yourself to see that
glaring amiguity, but instead jump down peoples throats for asking
for more information on your problem.

You seriously are not going about things the right way if you are in
need of answers ... People (except those wanting to inflame) would
just ignore you.

so when you see 1 vdc to 30 v power supply for sale , you
automatically think its 1v and 30 ??

yeah
okay


No... its more obvious there due to the huge step up range and the
fact that `power supply' is mentoned AFTER the range ..... but the
ambiguity still (technically) exists but because of the way it is
said the automatic inferrence is a variable output...


The bottom line is If you want answers .. be nice... if you want to
play games go about things the way you are..

Regards,

Mick


Hey Mick
We can only hope the onrush of teenage hormones will abate a bit in a
few years and then perhaps with some life experience under it's belt
there may be some improvement in manners and knowledge.


**Sadly, I fear the written communication skills of young people may never
amount to anything worth a damn. As can be seen from this thread, this is
a potentially extremely serious situation.


--
Trevor Wilson
www.rageaudio.com.au

Wadafuk u meen Trevy u dardy dood LOL!



Written job applications are a good thing - you can weed out a lot of crap
very easily.

 

[atec77]

On 7/03/2011 8:34 PM, Dennis wrote:

"Trevor Wilson"<trevor@rageaudio.com.au> wrote in message
news:8tj597Fk1fU1@mid.individual.net...
Rheilly Phoull wrote:
On 3/6/2011 5:12 PM, Mick DaDik wrote:
Noone...

You really need to get a grip...

Your english is in need of a lesson..

No one (not even you NO-ONE).. Said .5v AND 3V.. If you had (or
inferred) ....AND.... you would, presumably, get answers that
provide a .5V output AND a 3V output...

if i wanted a .5 and 3 i would have said .5 AND 3 .

but i said .5 to 3 v.


.5v TO 3V can mean .5V in to 3V out. As in 240VAC to 12VDC

it can also mean

Variable between .5v and 3V. (with inference on The output voltage)

I find it hard to believe that you cannot bring yourself to see that
glaring amiguity, but instead jump down peoples throats for asking
for more information on your problem.

You seriously are not going about things the right way if you are in
need of answers ... People (except those wanting to inflame) would
just ignore you.

so when you see 1 vdc to 30 v power supply for sale , you
automatically think its 1v and 30 ??

yeah
okay


No... its more obvious there due to the huge step up range and the
fact that `power supply' is mentoned AFTER the range ..... but the
ambiguity still (technically) exists but because of the way it is
said the automatic inferrence is a variable output...


The bottom line is If you want answers .. be nice... if you want to
play games go about things the way you are..

Regards,

Mick


Hey Mick
We can only hope the onrush of teenage hormones will abate a bit in a
few years and then perhaps with some life experience under it's belt
there may be some improvement in manners and knowledge.


**Sadly, I fear the written communication skills of young people may never
amount to anything worth a damn. As can be seen from this thread, this is
a potentially extremely serious situation.


--
Trevor Wilson
www.rageaudio.com.au


Wadafuk u meen Trevy u dardy dood LOL!



Written job applications are a good thing - you can weed out a lot of crap
very easily.


Actually no a lot of the time

written skills bears little relevance to many positions apart from
some box ticking on the computer
Some the best sales people are near illiterate but can smooze terribly well

--
X-No-Archive: Yes