"Push-Pull" for push und "Push-Pull" for pull (like Gamnut) - whats the right name? - Page 5 - diyAudio
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Old 27th February 2011, 01:10 PM   #41
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Quote:
Originally Posted by WuYit View Post
tiefbassuebertr,
I gave a clear explanation, after some pondering you should accept it. The operation mode can either be balanced or unbalanced with distinctive difference in function and sound characteristics. There`s no third possibility.
The circlotron circuit provides balanced operation: push-pull in its purest form.
Härzliche Grüße

I gave a clear explanation, after some pondering you should accept it....

No, because a clear explanation looks substantially different from your explanation.
Check out e. g. the term "Single Ended".
Even in case of amp topologies this term is ambiguous. The opposite term is either "Balanced" in case of the input stage (if there are differential input amplifier stage instead "single ended" amplifier input stage) or "Push Pull" in case of the output (buffer resp. power) stage.
Both haven't to do with the terms "quasi complementary" or "true complementary", because this both terms are in all cases "Push Pull" (in case of output stages).
Improve your skills befor you continue your discuss.

Quote:
Originally Posted by f117 View Post
Since we can use the same polarity device for output, why the complementary is the most common?
Because most engineers are too lazy (sometimes even unable) to develop truly innovative amplifier topologies.
But exceptions prove the rule:
www.passlabs.com (aleph series and "First Watt" e. g.)
and
http://www.diyaudio.com/forums/blogs...eek-tweak.html
and the URLs about
URL collection of Totem Pole and CSPP (Single Ended related) Solid State Output Stage
2N3055 inside - commercial famous amplifier models, quasi complementary power output

Last edited by tiefbassuebertr; 27th February 2011 at 01:33 PM.
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Old 27th February 2011, 03:34 PM   #42
WuYit is offline WuYit  Sweden
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tiefbassuebertr,
now I´m a little bit disappointed with you. Don´t get hung up on the names, look at the function. The definition is unambiguous, explanations can be muddy.
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Old 9th March 2011, 02:08 AM   #43
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Default Its PCB !

I got it ! Hooreyyyyy !

Thanks for ebay that recorded very old item of this seller.
I bought them only 50USD.

Full screened label and operating test point but it used very expensive power mosfet 4Pcs (94USD a piece), how do I find APT10025JVR from Microsemi.

Thanks
Anadigit
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Old 24th March 2011, 03:40 AM   #44
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Default New Sink !

I have got a new heatsink of driver board already. It's look like nearly close to original design of Gamut.

Second plan are finding Plittron 55-0-55 / 5A, 18-0 / 1A transformer and 22000uF/100V RIFA

Thanks
Anadigit
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File Type: jpg Gamut 80%.JPG (81.8 KB, 377 views)
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Old 24th March 2011, 04:41 AM   #45
tinitus is offline tinitus  Europe
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RS Components list some of those devices, all N-channel, most of them ixys
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Old 6th April 2011, 02:21 AM   #46
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Default Update

Last updated for Gamut chassis and supply. I try many times to build its chassis but I can't succeed for a log time :-(
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Old 8th April 2011, 03:13 AM   #47
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Default Completed !

This's my clony of Gamut :-)
I used only typical TI opamp and 1% royal resistor.

Hooreyyyy asap to hear it !
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Old 14th April 2011, 10:21 AM   #48
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Hi, everyone 1
I need to use Gamut circuit as my car audio amplifier. Could someone suggest me about SMPS to get +/- 70V and 25VDC both voltage rails should ground isolated together.

A big project !!!

Thanks
Anadigit
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Old 14th April 2011, 12:47 PM   #49
MiiB is offline MiiB  Denmark
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Look at ESP page he has a well proven design
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Old 14th April 2011, 07:42 PM   #50
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Quote:
Originally Posted by MiiB View Post
Look at ESP page he has a well proven design
this design?
Switchmode Power Supply For Car Audio
here other URLs:
http://www.scribd.com/doc/4071900/Sw...-for-Car-Audio
http://www.smps.us/smpsdesign.html
some years ago there was also such a project in the German magazine "Elektor".

Last edited by tiefbassuebertr; 14th April 2011 at 07:53 PM.
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