Single supply, three-pole compensated class-B retro amp

LKA

Member
2014-12-28 5:31 pm
The modified TMC, TMIC works quite well
 

Attachments

  • H-ENGv3-TMIC.jpg
    H-ENGv3-TMIC.jpg
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danhard

Member
2009-10-29 5:35 pm
TPC + TMC has the same benefit as 3PC
Effect of TMC tuning, benefit at 19kHz is 30dB Ry = 2k2 4k7 10k 1G (only TPC)
Degradation loop gain parasitic capacitance Cx = 0.001 0.01 0.1 1 pF
IMD1920 can then look like -140dB :D
 

Attachments

  • homeless quasi B 300mV off.png
    homeless quasi B 300mV off.png
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  • 3PC benefit.png
    3PC benefit.png
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  • Cx degradation.png
    Cx degradation.png
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  • TPC+TMC,3PC IMD1920.png
    TPC+TMC,3PC IMD1920.png
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002

Member
2022-03-19 11:41 pm
I am in the process of making an amp based on this design and figured I would share some pics. This is my first ever amp build so I am sure I will make mistakes but so far it has been fun and LKA has been a gentleman with answering my never-ending queries.

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