Hello,
Can you help me make a smps full bridge 2kw or 2.5kwh
I am a newbie at SMPS. I want to make smps to convert 220v to 50v, but do not know the equations that are used in full bridge, can you help me
thank you
Can you help me make a smps full bridge 2kw or 2.5kwh
I am a newbie at SMPS. I want to make smps to convert 220v to 50v, but do not know the equations that are used in full bridge, can you help me
thank you
No problems. You will need a TL494, four Transistors, a Transformer, a bit of veroboard and some other things. You can get these things out of an ATX supply. Solder them together. Switch things on and "job's a good one".
Thank you,
but how to calculate rolls Wire N primary & N secondary for transformer ferrite core , When using a full bridge
but how to calculate rolls Wire N primary & N secondary for transformer ferrite core , When using a full bridge
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I fail to understand why you want help from diyAudio forum members instead of diySMPS for your SMPS project.
Having calculated your required transformer Area Winding product, Aw.Ae, you work out the number of primary turns required to satisfy the design peak operating flux density, based on core loss. Then you scale the wire diameter/area according to the utilisation factor, Kpu. Check that the AC losses from proximity/layer effect are acceptable and if not use a wire rope. Work out the number of secondary turns from VIN/VOUT taking into account the maximum duty cycle on the primary side, you need dead time, and voltage drops from elsewhere. You may need to iterate a bit. I'm sure all of this stuff is available via AltaVista.
if nobody else aint gonna say it I will.
Consider starting with something smaller say 1/10 the size. In my eyes it would be criminal helping a self described 'newbie down this path. Power electronics is much like truck or boat building, the expenses & difficulty is exponential to the size.
What test gear do you have for this ambitious project , or do you even have an idea.
Why 50V, 48 Volt is an industry standard?
Consider starting with something smaller say 1/10 the size. In my eyes it would be criminal helping a self described 'newbie down this path. Power electronics is much like truck or boat building, the expenses & difficulty is exponential to the size.
What test gear do you have for this ambitious project , or do you even have an idea.
Why 50V, 48 Volt is an industry standard?
I apologise. The correct answer, although yours might be more reasonable, should have been "Shut Up and Go Away." rather than an attempt at sarcasm.
Probably did... and got ignored.
Thank you for your response, because this place is for power supplies
But is there a difference in using the transformer equation when using a push pull and a full bridge or not
I'm good at electronic and microcontrollers programming, but I wanted to learn from your experience of making this electric transformer
Nope.
Presumably you meant the transformer equation.
Npmin = Vrms/(4.44 X f X Bpk X Ae)
Oh.. You meant the other other transformer equation.
Nope.
NPmin = Vin.Ton/Bpk.Ae
...
L = Uo.Ue.N^2.Ae/Le
B = Uo.Ue.N.I/Le
E = -LdI/dT
Welcome to Hell. Use the equations for L, B and E to derive the equation for NPmin. You may refer to AltaVista and you may also tell me I have not given you enough information. I did this some time ago so I might have forgotten.
Thank you, but what we change in the equation we want to use full-bridge or push-pull or half-bridge
Thank you, but what we change in the equation we want to use full-bridge or push-pull or half-bridge
You have to derive the equation in order to realise its general applicability.
That's just the way life is.
If you cannot be bothered to learn how to wipe your own bottom when given directions I do not see why I have to personally do it for you.
Full bridge Epri is the full rail minus the switch losses, the half bridge is 1/2 rail. makes sense huh.
The equation is for the min. primary turns and are calculated on a half cycle in each case. Figure out the duty cycle Ton based on input AC range. Finally adjust turns ratio once the secondary turns are finalized.
Seek out a text on the subject, show a little initiative on your part! Suggest the Unitrode seminars handbooks vis TI's website.
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Thank you for your help,
but is there an example of a forums, to calculate the converter rolls the full-bridge method
but is there an example of a forums, to calculate the converter rolls the full-bridge method
Apparently not. However using AltaVista I found these,
EPCOS Ferrites and Accessories - Ferrites and Accessories - Product Catalog - Products - Home - TDK Europe - EPCOS
Ferrite Magnetic Design Tool - Ferrites - Design Tools - Design Support - Home - TDK Europe - EPCOS
The tool makes little to no sense to me but given you know micro-controller stuff I am certain it will be a breeze for yourself.
EPCOS Ferrites and Accessories - Ferrites and Accessories - Product Catalog - Products - Home - TDK Europe - EPCOS
Ferrite Magnetic Design Tool - Ferrites - Design Tools - Design Support - Home - TDK Europe - EPCOS
The tool makes little to no sense to me but given you know micro-controller stuff I am certain it will be a breeze for yourself.
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