ThermalTrak and Class A Pass designs

NYCOne · 10th July 2011, 05:37 PM

I've been looking at the ThermalTrak devices and some blogs by John Broskie (SRPP+ Part Two - bottom of the page).

The question comes to mind, is there a practical application of ThermalTrak (in Class A) for NP designs?

The answer my be "no", I'm not advanced enough to tell. The concept of thermally compensated outputs seems appealing.

Nelson Pass · 10th July 2011, 06:46 PM

They are, of course, bipolar. I haven't done any bipolar design lately, but
I expect that the Thermaltraks would be very good as output followers
in a Class A circuit.

buzzforb · 10th July 2011, 06:52 PM

NYCOne,
I believe that Cordell has been referencing them in his book thread. He seems to love them.

NYCOne · 11th July 2011, 03:18 PM

Quote:

Originally Posted by Nelson Pass

They are, of course, bipolar. I haven't done any bipolar design lately, but
I expect that the Thermaltraks would be very good as output followers
in a Class A circuit.

Thanks. Now to get OnSemi to make a FET version...

mlloyd1 · 12th July 2011, 08:32 PM

... or do an updated version of Nelson's classic 20 watt class A from 1977

that would be sweet

mlloyd1

10th July 2011, 05:37 PM	#1
NYCOne diyAudio Member Join Date: Jul 2010 Blog Entries: 1	ThermalTrak and Class A Pass designs I've been looking at the ThermalTrak devices and some blogs by John Broskie (SRPP+ Part Two - bottom of the page). The question comes to mind, is there a practical application of ThermalTrak (in Class A) for NP designs? The answer my be "no", I'm not advanced enough to tell. The concept of thermally compensated outputs seems appealing.

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10th July 2011, 06:46 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	They are, of course, bipolar. I haven't done any bipolar design lately, but I expect that the Thermaltraks would be very good as output followers in a Class A circuit.

10th July 2011, 06:52 PM	#3
buzzforb diyAudio Member Join Date: Oct 2010 Location: Burlington, NC	NYCOne, I believe that Cordell has been referencing them in his book thread. He seems to love them.

12th July 2011, 08:32 PM	#5
mlloyd1 diyAudio Member Join Date: Feb 2001 Location: illinois	... or do an updated version of Nelson's classic 20 watt class A from 1977 that would be sweet mlloyd1

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