AMPLIFIER AND METHOD FOR CORRECTING A FREQUENCY RESPONSE

摘要

The invention relates to audio-frequency power amplifiers operating together with acoustic systems. The main technical result consists in considerably extending the range of reproducible low frequencies without reducing the fundamental resonant frequency of the acoustic system. This result can be achieved when adding just one low-power resistor and one capacitor with a small capacitance to a typical power amplifier. In the embodiment under consideration, this is achieved by virtue of increasing the frequency response of the amplifier at low frequencies using positive feedback and the effect of quasi-resonance.