Quote from: Mr.Entropy on April 11, 2008, 10:57:12 AM

Quote from: aether22 on April 11, 2008, 06:20:34 AM
Whoever keeps changing the subject of this thread, can you maybe not?

It can make it hard to keep track of it!

That's RunningBare.  It's a bad idea to carry on a conversation in a thread that he starts, because when the conversation goes in directions he doesn't approve of, he gets peevish about it and tries to kill the thread by changing the subject.

Fortunately the subject doesn't affect the bookmark so I've found that if I set a bookmark to a thread I can always get back to it whatever it's title.
-Mike

Quote from: polarbreeze on April 05, 2008, 03:55:08 PM

Quote from: JustMe on April 05, 2008, 02:20:36 PM
Could somebody jot down how efficiencies can be calculated from this data?

The formulas are in the attached spreadsheet. The new data yields:

EI core transformer = 68%
Conventional toroid = 95%
Potential Difference bi-toroid = 38%

PB

@polarbreeze
It looks liek the bitoroid is much less efficient that a regular toroid so what's its advantage? Toroid trafos are always extremely efficient, high nineties usually so even with some imporvement I can't see you beating that - what am I missing here?
-Mike

Quote from: springfield on April 13, 2008, 03:51:28 AM
It looks liek the bitoroid is much less efficient that a regular toroid so what's its advantage? Toroid trafos are always extremely efficient, high nineties usually so even with some imporvement I can't see you beating that - what am I missing here?
-Mike

MIKE,
CONVENTIONAL TOROIDS CANNOT EXCEED 100% EFFICIENCY BECAUSE OF MUTUAL COUPLING.

BECAUSE THE BI-TOROID EMPLOYS UNI-DIRECTIONAL PRIMARY TO SECONDARY COUPLING AND THE SECONDARIES SELF REGULATE THEIR OWN VOLTAGES ACROSS THE LOAD AND BECAUSE THE PRIMARY POWER DOES NOT DEVIATE (IS ISOLATED) FROM NO LOAD TO FULL LOAD - THE BI-TOROID CAN BEAT 99% EFFICIENT EASILY.

IF YOU REFER TO THE TABLES AT Reply #1610 YOU CAN NOTE HOW PRIMARY CURRENT RESPONDS TO SECONDARY LOAD DUE TO MUTUAL COUPLING IN A CONVENTIONAL TRANSFORMER.

THE BI-TOROID PRIMARY CURRENT ONLY INCREASES DUE TO SECONDARY SATURATION BLEEDING BACK THROUGH THE PRIMARY.

Thane

Quote from: Mr.Entropy on April 11, 2008, 10:57:12 AM

That's RunningBare.  It's a bad idea to carry on a conversation in a thread that he starts, because when the conversation goes in directions he doesn't approve of, he gets peevish about it and tries to kill the thread by changing the subject.

You speak as though I've done this before, would you like to cite the other times I've done this?

I'm having a bit of fun with my thread, boredom is a terrible thing 

Quote from: RunningBare on April 13, 2008, 03:28:31 PM
You speak as though I've done this before, would you like to cite the other times I've done this?

I'm having a bit of fun with my thread, boredom is a terrible thing 

Well, I dunno about here, but you killed a nice quote exchange thread over at Steorn the same way.  As is the case here, other people, i.e., not you, had put a lot into it.

Each instance is exceedingly rude -- it hardly matters how many there are.