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Old 11th September 2012, 04:47 PM   #1691
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aha

cascoded , CCS loaded

or even better - choke loaded

but ,for choke you must ask BudP , not Dummy ZM
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Old 11th September 2012, 05:13 PM   #1692
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Somehow I think Choky has some ideas, but BudP probably knows a few things as well. Only tried simple resistor load. Never done choke loaded. WAit a second, focus,focus
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Old 11th September 2012, 05:14 PM   #1693
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Nice burn marks from Fets Buzz. Means your doin something while the rest of us wait.
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Old 11th September 2012, 05:17 PM   #1694
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Burn baby burn.
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Old 11th September 2012, 05:29 PM   #1695
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Old 11th September 2012, 06:30 PM   #1696
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Quote:
Originally Posted by Antoinel View Post
Alex: This is an interesting circuit. How low a Zo at a voltage gain = 1 [Transfollower] did it achieve?
Ideally the output impedance is similar to what you would expect from a traditional PP complementary follower - 1/S.

Cheers

Alex
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Old 11th September 2012, 06:55 PM   #1697
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1/S or 0.5/S due to transconductance doubling?

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Originally Posted by x-pro View Post
Ideally the output impedance is similar to what you would expect from a traditional PP complementary follower - 1/S.

Cheers

Alex

Last edited by lhquam; 11th September 2012 at 07:09 PM.
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Old 11th September 2012, 07:12 PM   #1698
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Quote:
Originally Posted by lhquam View Post
1/S or 2/S due to transconductance doubling?
If the FETs are biased into Class A ~1/2S. In Class B/AB ~1/S.

Alex
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Old 11th September 2012, 07:47 PM   #1699
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Quote:
Originally Posted by x-pro View Post
If the FETs are biased into Class A ~1/2S. In Class B/AB ~1/S.

Alex
Thank you Alex and lhquam. What is the value of S and thus Zo for Teaser-6 operating in Class A?
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Old 11th September 2012, 08:07 PM   #1700
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question. How do we calculate the size of the cap. What parameters are we considering and what is its official name? Boostrap cap?
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