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-   -   About ETD Cores (http://www.diyaudio.com/forums/power-supplies/223828-about-etd-cores.html)

milad-k800 18th November 2012 07:13 AM

About ETD Cores
 
Hi to all...
I am working on a 4 channel car power amplifier.it uses 2 etd core.but I'm not excactly sure what core should be used...(between 2 ETD39 OR 2 ETD44)
Please ensure me about Power handling of each other...
If there is any datasheet for etd cores please upload that...
soon you will see my big project....
Thanks alot ;)

luka 18th November 2012 08:20 AM

hey

you already have the amp, why do you need to use different core, then they are on the amp now?

power will depend on how much wire is on the core, frequency and core size

balance between those things, and more then just those, will depend on your power you could get. one thing is for sure, bigger core, more power, higher frequency, more power. But you have downsides to them also

milad-k800 20th November 2012 10:05 PM

Isn't anyone to help????
I just need ETD cored Datasheet and power capacity them....

DUG 21st November 2012 01:22 AM

"ETD39 OR 2 ETD44"

Those are physical core sizes you are giving us.

What is the material type?

The material type will affect the core losses at the frequency and flux density you design to.

Try EPCOS, MAGNETICS INC, FERROXCUBE (I think they are PHILIPS now), STEWART (they might be only lossy ferrite for EMI work)

So many options; so many compromises.

andrewlebon 21st November 2012 02:06 AM

ETD CORES
 
1 Attachment(s)
maybe this can help you
warm regards
andrew lebon;)

andrewlebon 21st November 2012 02:11 AM

3F3 core material is best if you can get it
warm regards
andrew lebon

luka 21st November 2012 06:02 AM

Quote:

Originally Posted by milad-k800 (Post 3249693)
Isn't anyone to help????
I just need ETD cored Datasheet and power capacity them....

at what freq.?

powerbob 21st November 2012 10:28 PM

milad-k800, It would help if you showed us the plans you are using to build this power supply from.

milad-k800 23rd November 2012 01:08 PM

thanks for your help...
I don't know what material of core I am using.clock freq is around 60khz...for few days I will finished my best power amplifier project...I just need to sure about power handling of etd cores in differrent freq,I cant find datasheet of them.why?????

some feature of the project:
2ohm capable
bridgable
overload detection,short circuit,dc offset detector
4 channel
HPF-LPF Bass Boost
and after finished the project I'll get the information of output power of each channel.
even with my finished project I need datasheet of ETD core...
Please get that to me...Best Regards
you are realy the best

milad-k800 23rd November 2012 01:10 PM

thanks for your help...
I don't know what material of core I am using.clock freq is around 60khz...for few days I will finished my best power amplifier project...I just need to sure about power handling of etd cores in differrent freq,I cant find datasheet of them.why?????

some feature of the project:
2ohm capable
bridgable
overload detection,short circuit,dc offset detector
4 channel
HPF-LPF Bass Boost
and after finished the project I'll get the information of output power of each channel.
even with my finished project I need datasheet of ETD core...
Please get that to me...Best Regards
you are realy the best


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