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need help to build my own smps based on blaupunkt schematics gta400 please
need help to build my own smps based on blaupunkt schematics gta400 please
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Old 11th January 2011, 06:48 PM   #141
Ground Zero is offline Ground Zero  France
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Hello

For the moment i have no caps

I search a good website in European union who sell condensators for a good price so if someone have this it will be cool

i search condensators of 4700F/25V with dimensions for D 18mm "max" and Length is not "really important"

thanks in advance
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Old 11th January 2011, 07:26 PM   #142
luka is offline luka  Slovenia
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need help to build my own smps based on blaupunkt schematics gta400 please
fr.farnell.com
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Last edited by luka; 11th January 2011 at 07:30 PM.
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Old 12th January 2011, 12:44 PM   #143
Ground Zero is offline Ground Zero  France
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Hello Luka

Thanks but i know farnell, the problem is the price of shipping cost, it's expensive "12" euros for just 8 condensators
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Old 12th January 2011, 03:18 PM   #144
luka is offline luka  Slovenia
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need help to build my own smps based on blaupunkt schematics gta400 please
well then find local store, it won't get any cheaper then that
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Old 12th January 2011, 05:26 PM   #145
Ground Zero is offline Ground Zero  France
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I'll try to find a store to finish my amplifier
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Old 25th January 2011, 11:25 AM   #146
Ground Zero is offline Ground Zero  France
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Join Date: Aug 2007
Hello Guys

I finish my smps but i need to find a pretty box for it

Do you think i can use a plastic box ? or a box like that

Galaxy 40 - 10mm - HIFI2000 GX248 - 40x230x280 - Facade 10mm Noire

I think the plastic will be more simple to use but i'm worry about the heat of each components

If you have other box to advice me please ?
I need theses dimensions inside the box:
width: 31cm
depth:28cm
height: 4cm or more max 6 cm

Thanks in advance
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Old 28th January 2011, 11:04 AM   #147
luka is offline luka  Slovenia
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need help to build my own smps based on blaupunkt schematics gta400 please
if you don't buy to big, and you can still put amps in, then metal is better, since you can use it as cooler and it looks great
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Old 29th January 2011, 04:34 PM   #148
Ground Zero is offline Ground Zero  France
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Hello Luka

Ok thanks

For the moment i stop the project because i need money but i will continue it soon
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Old 19th August 2011, 01:03 PM   #149
Ground Zero is offline Ground Zero  France
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Hello

I've got news about my smps

I change the capacitors value who are in serial with the snubbers resistor.

On the original schematics it use 100nf, with the snubbers resistors who comes really hot "about 106C and seems grow up..." and the output square wave on the primary winding is not perfect.

In fact i decide to use a 10nf capacitors with 22ohms 10w resistors snubbers.

Now the square have on the primary winding is better and the (resistors/transformers) have a temperature of about 49 C after burningtest of 30 minutes.

In the next day i will build other smps
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