Affordable SW mode power supply

[Fred]

I'm in the UK and require a power supply(s?) to give 5V @ 5 amps and -12V @
200mA from 230V mains. I have built in approx. 2 x current to be on the
safe side and to reduce working temperatures.

Forced air cooling is very undesirable.

It needs to fit in a unit so mustn't be more than 40 to 45mm high. The
other dimensions are quite generous.

Any steers would be gratefully received.


BTW the email address is invalid.

 

[Don Cleveland]

Fred <abuse@hotmail.com> wrote in message
news:3f4f771e$0$216$fa0fcedb@lovejoy.zen.co.uk...

I'm in the UK and require a power supply(s?) to give 5V @ 5 amps and -12V
@
200mA from 230V mains. I have built in approx. 2 x current to be on the
safe side and to reduce working temperatures.

Forced air cooling is very undesirable.

It needs to fit in a unit so mustn't be more than 40 to 45mm high. The
other dimensions are quite generous.

Any steers would be gratefully received.


BTW the email address is invalid.

Take a look at:

http://www.astec.com/products/datasheets/lp/lpt25.pdf

They sell for around $40US. It's a 25W switcher, if you feel you need more
power, look at LPT43.

Don Cleveland

 

[press F1 for help]

Take a look at www.xpplc.com a UK company the ACS 20-60 range is small and
cheap

There are lots of others

RGDS

brian
"Fred" <abuse@hotmail.com> wrote in message
news:3f4f771e$0$216$fa0fcedb@lovejoy.zen.co.uk...

I'm in the UK and require a power supply(s?) to give 5V @ 5 amps and -12V
@
200mA from 230V mains. I have built in approx. 2 x current to be on the
safe side and to reduce working temperatures.

Forced air cooling is very undesirable.

It needs to fit in a unit so mustn't be more than 40 to 45mm high. The
other dimensions are quite generous.

Any steers would be gratefully received.


BTW the email address is invalid.

 

[Mjolinor]

"Fred" <abuse@hotmail.com> wrote in message
news:3f4f771e$0$216$fa0fcedb@lovejoy.zen.co.uk...

I'm in the UK and require a power supply(s?) to give 5V @ 5 amps and -12V
@
200mA from 230V mains. I have built in approx. 2 x current to be on the
safe side and to reduce working temperatures.

Forced air cooling is very undesirable.

It needs to fit in a unit so mustn't be more than 40 to 45mm high. The
other dimensions are quite generous.

Any steers would be gratefully received.


BTW the email address is invalid.

If this is a one off then rob one out of an old VCR or other set top box. A
PC one will do the job but you may have difficulty getting it to fit or use
one of an old laptop, the older ones had multiple voltages like the Compaq
Armada 7400 for example.