Query about torroid temps - Page 2

pinkmouse · 24th April 2005, 11:35 PM

Nope, at this stage it shouldn't make a blind bit of difference...

If you turn up the output voltage to the maximum, does the traffo still get as hot?

ShinOBIWAN · 24th April 2005, 11:42 PM

Quote:

Originally posted by pinkmouse
Nope, at this stage it shouldn't make a blind bit of difference...

If you turn up the output voltage to the maximum, does the traffo still get as hot?

I've had the transformer off from the PSU board to test on its own and its fine. Temps stay stable, hardly above room temp actually. Output voltage is 23v AC which again is fine since this is no load.

Hard to tell if the transformer is hotter running higher voltages on PSU -- its already too hot to hold you hand on for any length of time.

I guess its a problem with the PSU but it should be childs play to connect it. Follow AC wiring diagram in the PSU instructions, simple as.

ShinOBIWAN · 24th April 2005, 11:49 PM

Actually I don't have the PSU connected to GND(earth).

Would this cause the heat? Looks like it would since AC2 and AC3 go straight to GND.

pinkmouse · 24th April 2005, 11:50 PM

Well, I can't think of anything else it could be, but I was at work at eight this morning, so I am a little tired and my brain may not be working at 100%

I suggest you get some kip like I'm going to do and look at it fresh again tomorrow.

Night night!

:edit: AC2 and 3 are ground! Voltage is all relative!

ShinOBIWAN · 24th April 2005, 11:51 PM

Quote:

Originally posted by pinkmouse
Well, I can't think of anything else it could be, but I was at work at eight this morning, so I am a little tired and my brain may not be working at 100%

I suggest you get some kip like I'm going to do and look at it fresh again tomorrow.

Night night!

Aww, I was hoping you'd take a quick look at my last post before bed

pinkmouse · 24th April 2005, 11:53 PM

Did! See above!

ShinOBIWAN · 24th April 2005, 11:55 PM

Quote:

Originally posted by pinkmouse
Did! See above!

Ah, missed that.

Should I connect the GND output from the PSU to the earth? Would this cause the heat, since I've omitted it for testing?

Cheers and have a good nights kip!

pinkmouse · 24th April 2005, 11:58 PM

Can't see how, but I can barely see my hand in front of my face at the moment. See you tomorrow!

ShinOBIWAN · 24th April 2005, 11:59 PM

Quote:

Originally posted by pinkmouse
Can't see how, but I can barely see my hand in front of my face at the moment. See you tomorrow!

K, cheers again PM.

d3imlay · 25th April 2005, 12:28 AM

Quote:

One question the dot on the windings diagram, is it to indicate the start or end of the winding?

The dot on a transformer is the start.

What is the line frequency? If it's 50 Hz, and you have a 60hz xfmr you need an xfmr.

24th April 2005, 11:35 PM	#11
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Nope, at this stage it shouldn't make a blind bit of difference... If you turn up the output voltage to the maximum, does the traffo still get as hot? __________________ Al There is science, logic, reason; there is thought verified by experience. And then there is California. Edward Abbey

24th April 2005, 11:50 PM	#14
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Well, I can't think of anything else it could be, but I was at work at eight this morning, so I am a little tired and my brain may not be working at 100% I suggest you get some kip like I'm going to do and look at it fresh again tomorrow. Night night! :edit: AC2 and 3 are ground! Voltage is all relative! __________________ Al There is science, logic, reason; there is thought verified by experience. And then there is California. Edward Abbey

24th April 2005, 11:53 PM	#16
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Did! See above! __________________ Al There is science, logic, reason; there is thought verified by experience. And then there is California. Edward Abbey

24th April 2005, 11:58 PM	#18
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Can't see how, but I can barely see my hand in front of my face at the moment. See you tomorrow! __________________ Al There is science, logic, reason; there is thought verified by experience. And then there is California. Edward Abbey

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24th April 2005, 11:49 PM	#13
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	Actually I don't have the PSU connected to GND(earth). Would this cause the heat? Looks like it would since AC2 and AC3 go straight to GND.

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