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Old 23rd October 2012, 11:38 AM   #2701
paskal9 is offline paskal9  Malaysia
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Location: the tropics with 97% humidity
Quote:
Originally Posted by jlester87 View Post
Hi,

What's the size of your inductor? Is it T106 or T130?

Regards,
i've mentioned it already in the previous post. it's T106-2 iron toroid.
wound with 1.5 meters of 1.2mm/AWG16/SWG18 copper wire for a total of 21-22uh of inductance.
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Old 23rd October 2012, 12:09 PM   #2702
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Default smps 4kw

Hi Jay
greetings this SMPS FILE needed
warm regards
andrew cant find torridal core this smps using as NANO mentioned
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Old 23rd October 2012, 01:03 PM   #2703
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Quote:
Originally Posted by paskal9 View Post
i've mentioned it already in the previous post. it's T106-2 iron toroid.
wound with 1.5 meters of 1.2mm/AWG16/SWG18 copper wire for a total of 21-22uh of inductance.
Oh that's why it's getting hot, maybe the T157 is sufficient for 900watts.
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Old 23rd October 2012, 01:53 PM   #2704
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Default pcb for totem

NANOS PCB for 3 pair

warm regards
andrew lebon
Attached Images
File Type: png Nano.png (49.0 KB, 1141 views)
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Old 23rd October 2012, 02:38 PM   #2705
paskal9 is offline paskal9  Malaysia
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Quote:
Originally Posted by jlester87 View Post
Oh that's why it's getting hot, maybe the T157 is sufficient for 900watts.
after adding the fan blowing some air to the pcb it doesn't heat up anymore. i've also rotated the top cover with ventilation hole directly on top of the pcb.
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Old 24th October 2012, 02:00 AM   #2706
stewin is offline stewin  Kenya
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Quote:
Originally Posted by andrewlebon View Post
NANOS PCB for 3 pair

warm regards
andrew lebon
does it have overcurrent protection?
the components in the photo are not labeled, do you have a clearer one.

thanks andrew GOD bless you

Last edited by stewin; 24th October 2012 at 02:25 AM.
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Old 24th October 2012, 02:22 AM   #2707
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Hi Nano
greetings thanks for your reply and all the HELP
warm regards
andrew
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Old 24th October 2012, 04:20 AM   #2708
chago25 is offline chago25  Philippines
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Quote:
Originally Posted by andrewlebon View Post
NANOS PCB for 3 pair

warm regards
andrew lebon
sir andrew lebon can u share schem and overlayout?
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Old 24th October 2012, 04:29 AM   #2709
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Quote:
Originally Posted by stewin View Post
does it have overcurrent protection?
the components in the photo are not labeled, do you have a clearer one.

thanks andrew GOD bless you
If it uses IR2110 then it doesn't have OCP because the sd pin is connected to ground... Also didn't include shunt resistor and over current sense amplifier.
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Old 24th October 2012, 05:32 AM   #2710
stewin is offline stewin  Kenya
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Quote:
Originally Posted by andrewlebon View Post
Hello
greetings IRS3000D with bd139 140 3 pairs FDA90N20
warm regards
andrew lebon
hi andrew the pcb files and schema? the one with protection, totem pole and 3pairs output.
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