Power supplies

Alives · 02-20-2001, 03:22 AM

How reliable are ATX power supplies? I like the big cb radio supplys with meters but there way expensive...what are the recomendations?

Freakyfrank · 02-20-2001, 05:53 AM

im currently working on a 600W power supply

its a bigass trafo (+-6KG) with a rectifier and a few big condensators..
the ripple for a TEC can be 15% (!)..
mine has appr. 10% ripple when its ready..

when ready it can deliver +-35A at 16V ... thats enough for my 2 156W TECs to work at full blast..

but with a xtra resistor 12V-16V can also be obtained.

when im ready.. i'll make a review..

Freakyfrank · 03-10-2001, 07:04 AM

that trafo i was talking about...

i found a new one.. !

10V @ 90A and 30V @ 30A

now only the switching regulator to make volts I want..

nutndun · 03-16-2001, 05:39 PM

Hey Frank,
Where could I find a 24V 15-20A Variable power supply or make one to the voltage I want, I'm not the greatest at electrical schematics. If it's a black wire and a red one I'm alright or if it is worded in plain english I can do it.

------------------
AMD TB 1Ghz@1310
MSI pro2a
Mushkin Rev2 256mb
Creative Gforce GTS
Watercooled

hielko · 03-17-2001, 02:48 AM

If you wan't a simple powersupply you can using a trafo, a bridge rectifier and a few condensators. You can use the following program: http://www.arcobel.nl/~dabit/pelt_supply.zip

Just enter the Vmax, the Imax for yer pelt and the ripple you would like to have and the program tells you what components you have to use.

My original plan was to build a powersupply like this for powering my pelts, but i'm now planning to use a trafo with a home build switching power regulator

. I don't have the skills to design one, but DaBit (also the writer of the program above) is bussy designing one.

Freakyfrank · 03-18-2001, 05:27 AM

hey hielko.. i already thought that name was familiar

www.tweakers.net...

hielko · 03-18-2001, 01:12 PM

hehe

Medus@ · 03-19-2001, 01:41 AM

Hi FrankyFrank are you here to now? That's cool... I am Celeron_clocker @ t.net

Greetz

hielko · 03-19-2001, 05:34 AM

I suppose it's time to make a dutch forum here

.

02-20-2001, 03:22 AM	#1
Alives Cooling Savant Join Date: Jan 2001 Location: Columbia, SC Posts: 228	Power supplies How reliable are ATX power supplies? I like the big cb radio supplys with meters but there way expensive...what are the recomendations?

03-18-2001, 05:27 AM	#6
Freakyfrank Cooling Savant Join Date: Nov 2000 Location: Eindhoven, Holland Posts: 238	hey hielko.. i already thought that name was familiar www.tweakers.net... __________________ OC'ing is my middlename

03-19-2001, 01:41 AM	#8
Medus@ Cooling Neophyte Join Date: Mar 2001 Location: Netherlands Posts: 4	Hi FrankyFrank are you here to now? That's cool... I am Celeron_clocker @ t.net Greetz __________________ System specs: Celeron 667@955mhz ( for now ) \| 1.75V \| 384mb Infineon 133mhz CAS3@2 \| Elsa Gladiac GeForce2 GTS 32mb

02-20-2001, 05:53 AM	#2
Freakyfrank Cooling Savant Join Date: Nov 2000 Location: Eindhoven, Holland Posts: 238	im currently working on a 600W power supply its a bigass trafo (+-6KG) with a rectifier and a few big condensators.. the ripple for a TEC can be 15% (!).. mine has appr. 10% ripple when its ready.. when ready it can deliver +-35A at 16V ... thats enough for my 2 156W TECs to work at full blast.. but with a xtra resistor 12V-16V can also be obtained. when im ready.. i'll make a review..

03-10-2001, 07:04 AM	#3
Freakyfrank Cooling Savant Join Date: Nov 2000 Location: Eindhoven, Holland Posts: 238	that trafo i was talking about... i found a new one.. ! 10V @ 90A and 30V @ 30A now only the switching regulator to make volts I want..

03-16-2001, 05:39 PM	#4
nutndun Cooling Neophyte Join Date: Mar 2001 Location: PA, USA Posts: 11	Hey Frank, Where could I find a 24V 15-20A Variable power supply or make one to the voltage I want, I'm not the greatest at electrical schematics. If it's a black wire and a red one I'm alright or if it is worded in plain english I can do it. ------------------ AMD TB 1Ghz@1310 MSI pro2a Mushkin Rev2 256mb Creative Gforce GTS Watercooled

03-17-2001, 02:48 AM	#5
hielko Cooling Savant Join Date: Feb 2001 Location: The Netherlands Posts: 108	If you wan't a simple powersupply you can using a trafo, a bridge rectifier and a few condensators. You can use the following program: http://www.arcobel.nl/~dabit/pelt_supply.zip Just enter the Vmax, the Imax for yer pelt and the ripple you would like to have and the program tells you what components you have to use. My original plan was to build a powersupply like this for powering my pelts, but i'm now planning to use a trafo with a home build switching power regulator . I don't have the skills to design one, but DaBit (also the writer of the program above) is bussy designing one.

03-18-2001, 01:12 PM	#7
hielko Cooling Savant Join Date: Feb 2001 Location: The Netherlands Posts: 108	hehe

03-19-2001, 05:34 AM	#9
hielko Cooling Savant Join Date: Feb 2001 Location: The Netherlands Posts: 108	I suppose it's time to make a dutch forum here .

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