And the link to impulse response.
Sito Ultrasound Main Frame
Somehow it only links to main page...anyway, click 'amplifiers' scroll all the way down, there is link to 'current drive generators'
And it shows impulse response and fr response on fullrange driver
Sito Ultrasound Main Frame
Somehow it only links to main page...anyway, click 'amplifiers' scroll all the way down, there is link to 'current drive generators'
And it shows impulse response and fr response on fullrange driver
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Mr. Dawson, is the schematic you inserted in post 9 applicabile? May I made pratically that schema ?
You can. It should work.
Please read Joe Rasmussen's trans amp thread.
Joe Rasmussen "Trans-Amp" - 40 Watt Transconductance "Current Amplifier"
I usually have 220 ohm resistor parallel with speaker, to make all things more stable.
Please read Joe Rasmussen's trans amp thread.
Joe Rasmussen "Trans-Amp" - 40 Watt Transconductance "Current Amplifier"
I usually have 220 ohm resistor parallel with speaker, to make all things more stable.
if you go through my thread 'viral projects, there is my instruction how to convert voltage drive chip (lm3886) to current drive
viral projects, sort of
viral projects, sort of
This isn't correct. The inverted mode differs mainly (apart from the input impedance) through the fact, that the input differential amp (LTP) turns into a cascode. Sonic performance is better in most cases - check out post #14 under
https://www.diyaudio.com/community/threads/non-complementary-class-ab-linearized-amp.202526/
and post #39 under
https://www.diyaudio.com/community/threads/the-rush-cascode-possible-wiki-page.137509/page-2
In case of a power amp input resistance is (as long as the NFB resistor isn't too high) between 1K and 5K and not between 33K and 200K as most usual for non inverted mode. Most papers claim, this is a disadvantage (and requires an additional input buffer) but in real life this is more of an advantage especially without additional input buffer (except for high output impedance preamps - mostly equipped with 1-2mA small signal tube).
Maybe one of the member can upload the mentioned Interview with either Mr. Bob Stuart or Allen Boothroyd (Meridian) printed German Hi-Fi magazine "HiFi-Exklusiv" (check out attachment from the mentioned URL).
After reading this everybody understand, why the inverted mode provide better sonic performance than the non inverting mode.
P.S.: Mr. Bob Stuart and Mr. Allen Boothroyd are also here in interview:
https://www.stereophile.com/interviews/906bob/index.html
more URL's
https://www.stereophile.com/content/40-years-meridian
https://restechtoday.com/audio-designer-allen-boothroyd-died/
https://www.av2day.com/2020/06/co-founder-of-meridian-audio-allen-boothroyd-dies-at-age-76/