ANALOG SIGNAL AMPLIFIER Russian patent published in 2021 - IPC H03F3/217 

FIELD: acoustics; hydroacoustics.

SUBSTANCE: invention relates to amplifying and generating equipment and can be used in acoustic and hydroacoustic broadband power amplifiers (PA). In addition, a decrease in energy losses at the upper gradation of power for high-power amplification devices is provided by the power supply of the key PA through the key circuit from the voltage of the object network under conditions of compensation for its change by the appropriate digital control of the transfer coefficient of the buffer amplifier using a voltage sensor and an analog-to-digital converter.

EFFECT: invention is aimed at increasing the energy efficiency and uniformity of the amplitude-frequency response of the output voltage under operating conditions for a changing complex load due to the use of a two-channel pulse-width modulator of two key power amplifiers with low-pass filters, an output combiner, as well as a multichannel power supply with a diode combiner and a code converter for step voltage control power supply and digital control of the buffer amplifier of the input signal.

1 cl, 3 dwg