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Old 16th April 2005, 08:50 PM   #21
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Click the image to open in full size.
BIRDSNEST!!! But it sounds good!
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We live in a horizontal world, why use vertical topologies???
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Old 16th April 2005, 08:54 PM   #22
Netlist is offline Netlist  Belgium
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I'm impressed, you really seem to know your stuff, drawing schematics just like that.

/Hugo - wonders where are fellow Circlotron hangs out these days...
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Old 16th April 2005, 09:37 PM   #23
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Default Inner mystery of the circlotron!

Quote:
A lot of us will be happy if you can explain more how the Circlotron circuit works...especially as you presented it. Then we can share with your excitement Thanks!
If you look at the following chematic you can see two currentpaths going through the speaker from opposite directions. When at idle there is no voltagedifference on the loudspeakerterminals so no current flows through the speaker. The quiesent current flows in an figure of eight (8) through the powersupplies and the fets/tubes/valves. (yes it would be possible to make a hydralic or pnumatic circlotron to) (Think subwoofer with DEEEEP BASS!!!)
When a signal is applied the voltage shifts so you get a more positive voltage on one side and a more negative on the other, thus current flows the easiest way - through the voicecoil and sweet music pops out of the speakers.

Click the image to open in full size.

See www.tubecad.com for a more thourough workthrough on the circlotron/horizontal topologies, thats where i learned a lot about them
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Old 17th April 2005, 12:09 AM   #24
Tom2 is offline Tom2  United States
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We think alike!

http://www.diyaudio.com/forums/showt...643#post490643

I have more more circlotron ideas.

Tom
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Old 17th April 2005, 06:58 PM   #25
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Quote:
Originally posted by Tom2
We think alike!

http://www.diyaudio.com/forums/showt...643#post490643

I have more more circlotron ideas.

Tom
If you have more ideas, im very intrested.Please tell me about them! I love the horisontal/circlotron circuit because it offers simplicity and true balanced symmetrical designs.
Its easy to implement a lot of different ideas and qualities into the design.
Its a bit boring nobody seems to understand them and their special qualities.
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Old 18th April 2005, 12:30 AM   #26
Tom2 is offline Tom2  United States
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Your zenitron circuit puzzles me.

Since the power signal current can only circulate
through the load, power supplies, power mosfets and 2200 uf caps, --- thus this implies the power signal current increases on both the positive and negative parts of the signal through both power mosfets (since the mosfets are biased on). IMHO one of
the power mosfets for a given positive (or negative for the other mosfet) part of the signal seems to work backward to what it should. In other words the KVL loop of the power supplies, power mosfets, load and 2200uf caps derives what voltage should be across the power mosfets and thus one mosfet should be decreasing in voltage across it yet the current though it is increasing??????

IMHO the difficulty I am having understanding the zenitron, SuSy circlotron circuits and x100 circuit is the circuits seem to need or have two or more ground reference points. My brain keeps telling me the circuits can have only one?????

I can't get it through my brain on how to drive a circlotron with volatage gain in a balanced way without resorting to input transformers as a way to isolate the two circlotron halves from having ground reference problems. Maybe I just don't see it yet.

Perhaps more circlotron KVL grokking needed for me!

Your aleph, resistor, lightbulb circlotrons seem ok to me.

Circlotrons are very interesting indeed!

Tom
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Old 18th April 2005, 04:23 AM   #27
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Quote:
IMHO the difficulty I am having understanding the zenitron, SuSy circlotron circuits and x100 circuit is the circuits seem to need or have two or more ground reference points. My brain keeps telling me the circuits can have only one?????
It only has one ground reference point.The exact middle of the circuit.
The amp kind of "flaps its wings" in opposite directions with the middlepoint being still all the time.
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power supplies, power mosfets and 2200 uf caps
22000 mF,otherwise the bass will be weak.
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Old 18th April 2005, 04:26 AM   #28
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Build it! It can get a bit too confusing sometimes for me to just stare at a circuitdiagram. To get some reality on it, i build it and hope it works.
Smoke is a good learner sometims!
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Old 18th April 2005, 05:18 AM   #29
Tom2 is offline Tom2  United States
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Circlomanen

Thank-you for your response.

I agree, looking at schematics and equations
doesn't make music, something I do to much of lately.

Tom
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Old 18th April 2005, 06:08 AM   #30
Tom2 is offline Tom2  United States
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Circlomanen,

The zip file contains two schematics.

One circuit uses a balanced line zen input for voltage gain.
The other uses a reflected cascode front end for voltage gain.
Both use the same circlotron output stage buffer.

Hmmm maybe I could use an XX circuit somehow.

Tom
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File Type: zip circlosusy.zip (37.7 KB, 177 views)
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