A redefinition of the role of the line amplifier and power amplifier is forwarded as a more optimum construction for both minimising power supply related error signals and improving system transparency, within an economic framework. A methodology offering a quasi-bridge and a symmetric, differential bridge structure incorporating floating supplies (pontoon amplifier) complements this new proposal, and a novel topology using error-feedback location of the floating supplies is presented.
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https://aes2.org/publications/elibrary-page/?id=11508
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