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Old 10th October 2013, 10:50 AM   #31
AndrewT is offline AndrewT  Scotland
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post12.
What is the difference between "current sharing" and Quasi complementary?
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Old 20th October 2013, 04:25 PM   #32
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Quote:
Originally Posted by AKSA View Post
Kanwar,

By ending up with different output impedances from each half, you force higher levels of H2 and H4. Put another way, this sounds a bit more warm.

Some people actually prefer a quasi amp over a complementary output stage.

But then you knew this already.....

Ciao

Hugh
Hello Hugh,

Long time no see ,

I tend to differ here, in the above examples given by Alex, the output impedances are highly balanced if compared to the usual quasi-complementary, because of the feedback. Also if the outputs are configured as VCCS then also you will have balanced case of impedences.

Correct me if i am wrong, but after having simulated the VCCS stage[my own version] in open loop, i am not getting H2 which is higher than H3.


Quote:
Originally Posted by AndrewT View Post
post12.
What is the difference between "current sharing" and Quasi complementary?
In the current sharing figure: The Drain of Lower output mosfet makes connection with the Source of P-channel input driver mosfet, which in a way provides local negative feedback and linearizes the full output stage.


Cheers,
Kanwar

Last edited by Workhorse; 20th October 2013 at 04:33 PM.
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