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Old 3rd January 2012, 07:06 PM   #1
kees52 is offline kees52  Netherlands
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Default smps for hybride

Hi All

First happy newyear.

I have a plan to make a SMPS for the hybride, contains 2x 140 volt 300mA differential 1 x 450 volt 100 mA and 6.3 volt 10 Amp. Maybe in future also 2 x 60 volt 5 Amp.

What I can use best, it can be maybe not easy because of high switchoff induction for driver mosfets, but can snubber that.

I want to use simpel, because some people here make supply,s so complicated that is not nessesary with modern pwm ic.

some examples in pictures, shema.gif is a weld converter for the ones who need a lot power.

So what kind of smps I need, flyback, bridged, half bridge.

I have also a idea to use the power trafo of the mosfets stage, it is 60 volt 5 amp, and make a converter who has 24 80 volt input and the tube voltages as output.

thanks.
Attached Images
File Type: jpg driver.jpg (18.3 KB, 92 views)
File Type: gif shema.gif (115.3 KB, 91 views)
File Type: png iz_osc.png (8.3 KB, 84 views)
File Type: gif ScreenHunter_02 Jan. 02 16.43.gif (60.6 KB, 81 views)
File Type: gif SMPS.gif (83.8 KB, 85 views)

Last edited by kees52; 3rd January 2012 at 07:17 PM.
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Old 3rd January 2012, 07:25 PM   #2
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Since you need high voltage at relatively low current, flyback would be best.
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Old 3rd January 2012, 07:32 PM   #3
kees52 is offline kees52  Netherlands
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Join Date: May 2009
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Quote:
Originally Posted by Th3 uN1Qu3 View Post
Since you need high voltage at relatively low current, flyback would be best.
I think then these one on picture is best and simple.

for also the 60 volt x 2 and 5 ampere extra then I need a bridge one? but can these also deliver high voltage without problems.

regards
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Last edited by kees52; 3rd January 2012 at 07:35 PM.
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Old 4th January 2012, 12:54 AM   #4
kees52 is offline kees52  Netherlands
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Join Date: May 2009
Location: Sprang-capelle Holland.
I have made a schematic as example, I can not simulate it with multisim.
Oke, I have use a two mosfet switch for less voltagestress for mosfets I have
high output voltage.

I know there are more things to do like ntc and such.

Let me now what toughts.

regards
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Old 4th January 2012, 08:37 PM   #5
kees52 is offline kees52  Netherlands
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Join Date: May 2009
Location: Sprang-capelle Holland.
very nice site of a guy who torture a switching supply he build.

3 to 60 volts 40 ampere.

if you see it then you think, do that work?

http://danyk.wz.cz/reg60v_en.html
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