Calculation programs for transformers and inductors

phaedrus

Member
Hi,
Thanks for the program.I think in single ended forward converter,3 coils are needed ?Does the program calcualte for all three ?
TIA
 

stewin

Member
:UP::UP:hi starichok thanks for the links of the programs much appreciated. :UP::)

do you have a high power flyback smps schematic using irfp460 .?
thanking you in advance stewin.
 
Detect and correct errors that appeared during the rework program on standard diameters of wires.
This bug only for push-pull, when calculating the fill factor of the window.
 

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dimasroma

New member
Hay Starichok51,
Great job. I like your applications. To use "Flyback' i have difficult to add new core type "EPC" from DMEGC.
In core specification i cant find effective permeability and area of the core window (an). Please advise me.
By the way, please launching booster application like "Booster ring" but for type "Drum Core".
I will make booster circuit for LED Inverter with drum core to repair and change CCFL backlight with LED backlight.
Thanks for your help and support.
 

Dimonis

New member
new core type "EPC" from DMEGC.
Can you post a link for this core ? Starichok doesn't speak and understand english at all , using on-line translators cannot give much help in technical discussions . I'll translate to him and give an advise.:adoration:
 

dimasroma

New member
Core Type EPC40B, Material DMR40 (DMEGC)

Dimonis,
Below attach file for:
1. Ferrite core EPC40B
2. Material of core : DMR40 from DMEGC
3. Cross reference list
The ferrite core specifications is very simple. I cant find "effective Permeability and area of the core windows"
So I cant add new core in "Flyback" application.

View attachment core epc40b.pdf
View attachment dmr40_low_cost_power_material_sl.pdf
View attachment DMEGC_MN-ZN_FERRITE_CROSS-REFERENCE_LIST_1.pdf

Please help Me.
Thanks before.
 

dimasroma

New member
Ferrite "DRUM CORE"

And where I find all the data on your core? I can not do.
I do not know what "Drum Core".

Hay Starichok51,
Sorry I am late to reply.
This is Drum Core ferrite specifications from SAMWHA.
View attachment Drum_Core.pdf
This is material Drum Core ferrite specifications
View attachment Material characteristics_L-81.pdf

In datasheet only find dimensions specifications and I can't find " Le, Ae, Ve, Aw, etc" like ferrite ring core.
With datasheet above, I hope can help you to build applications for "Booster Drum Core"
In application "Booster Drum Core" often used in inverter for BACKLIGHT LED TV.

Thanks.
 
I repeat, I do not know how to count Drum.
These data can not be determined for them.
Inductance should be determined using the test coil.
 

dimasroma

New member
I repeat, I do not know how to count Drum.
These data can not be determined for them.
Inductance should be determined using the test coil.


It's mean I have to make the number of turns by manually appropriate
the inductance that I want.
Ok, I will experiment to make it.
Thanks for your advice.
 
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