CLASS D AMPLIFIER FOR EXCITATION OF A LOW-FREQUENCY HYDROACOUSTIC TRANSDUCER Russian patent published in 2022 - IPC H03F3/217 

FIELD: hydroacuostics.

SUBSTANCE: invention relates to the field of amplifying and generator technology and can be used in hydroacoustic broadband amplifiers of low-frequency hydroacoustic communication (HC) and hydroacoustic echo ranging (HAR) modes. The result is achieved by matching the channel outputs of key power amplifiers (KPA) with two-channel PWM through low-pass filters with a hydroacoustic converter in the conditions of power supply of the terminal stages of the KPA with a high-voltage voltage generated by a high-frequency inverter, a high-frequency transformer and a rectifier device with a common-mode interference filter.

EFFECT: reduction in the volume and mass of transmitting equipment while expanding the frequency range of signals.

1 cl, 3 dwg