REGISTER | LOGIN
Breaking News
Comments
Newest First | Oldest First | Threaded View
GK77
User Rank
Author
re: A new audio amplifier topology with push-pull transimpedance stage - Part 1: Introduction
GK77   9/1/2012 3:42:07 AM
NO RATINGS
1 saves
I had come up with the exact same symmetrical TIS design as Samuel, independently, which I confirmed by corresponding with Samuel after the article was published in Linear Audio, before seeing the article my self. So I have to agree it is a clever design : - ). My only reservation with Samuels’s article is that it did not venture into a loop gain analysis of the Miller compensation loop. As some might find it of use I’ve uploaded some of my own analysis, including detail of an alternative method (shunt compensation) of predictably stabilising the Miller compensation loop, onto the net here: http://www.users.on.net/~glenk/millerloop/millerloopstability.htm Cheers, Glen

StephanWeber
User Rank
Author
re: A new audio amplifier topology with push-pull transimpedance stage - Part 1: Introduction
StephanWeber   8/30/2012 2:51:40 PM
NO RATINGS
1 saves
Nice circuit, but not really new. There are also some disadvantages not mentioned unfortunately. The slew limit from input stage and Q11/12 remains. The mid-stage Q9 can easily drive Q11 too hard (Q11 then in cut-off!). Here better add a clamping circuit. Allmost all transistors need to withstand high-voltages and the signal has to travel through many stages, that makes the whole amp quite unstable. The older mentioned circuit can be also improved to get rid some the mentioned limitations. For instance the filtering for ripple rejection is quite easy to implement with little effort.



Like Us on Facebook
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Martin Rowe

Test Tool Finds Ethernet Wiring Errors
Martin Rowe
Post a comment
When my house was renovated several years ago, I had the electrician install network outlets in numerous places, then run the LAN cables to a wiring closet. But he didn't document the ends ...

Martin Rowe

Local Electronics Store Supplies Engineers and Hobbyists
Martin Rowe
5 comments
Rochester, N.Y. — Tucked away in this western New York city known for its optics is Goldcrest Electronics, a local store that's supplied businesses and individuals with electronic ...

Martin Rowe

How to Transform a Technology University (Book Review)
Martin Rowe
1 Comment
The Presiding Genius of the Place by Alison Chisolm. WPI, Worcester, Mass., 234 pp., 2016. Engineers love to discuss, and often criticize, engineering education. They often claim ...

Max Maxfield

Aloha from EEWeb
Max Maxfield
Post a comment
Just a few minutes ago as I pen these words, I posted this blog about this month's Cartoon Punchline Competition over on EEWeb.com.