Class D amplifier for audio signals uses control circuit which operates pairs of MOSFET power transistors, via transformer which provides galvanic isolation

摘要

The amplifier (1) is controlled by a circuit (2) fed by hybrid circuits (23, 25, 26, 27) which provide modulation, integration and compensation effects. The signal is fed via an isolating transformer (5) and clamping circuits (6) to the gates of pairs of pairs of MOSFET power transistors (4).