Bamboszek
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- Joined
- Mar 17, 2018
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Frequency compensation techniques, stability and whole control theory is not that simple matter so it is completly understandable someone might have questions. Here is interesting read about driving capacitive loads, including multi feedback topology proposed by you. Especially notes below slides. Things get even more complicated when we consider current feedback amplifier like TPA6120A2. I'm working on composite headphone amp project. I have few prototypes already, next week I'm excepting to try few configurations - with Riso in feedback loop vs simple air core inductor at output. I have access to vector network analyzer and APx525 so I will be able to compare stability and THD performance of both methods. I can publish results here if there is any interest.