Accession Number : AD0880843

Title :   Interim Study and Development Report of High Efficiency Sonar Transmitters.

Descriptive Note : Final rept. 15 Jun-15 Dec 70 on Phase 1,

Corporate Author : BOSE CORP FRAMINGHAM MA

Personal Author(s) : Veranth, Joseph L.

Report Date : 15 DEC 1970

Pagination or Media Count : 145

Abstract : The basic issues of high-power audio-frequency amplification are reviewed. A study of a class of high-frequency switching sonar transmitters is presented. Basic design considerations for linear, baseband, switching, and high-frequency switching amplifiers are discussed. The application of presently available solid state devices to power amplification is considered. System and circuit considerations lead to the development of the current-controlled two-state modulation system. The operation of the current-controlled two-state modulation system as an audio power amplifier is analyzed. System characteristics are related to design parameters, and the design of a 1000 VA, 3.5 kHz amplifier is presented. A 500 VA breadboard circuit is used to evaluate this concept. (Author)

Descriptors :   *AUDIO AMPLIFIERS), (*SONAR PROJECTORS, (*TRANSISTOR AMPLIFIERS, AUDIO AMPLIFIERS), HIGH FREQUENCY, LINEAR SYSTEMS, ELECTRONIC SWITCHES, SWITCHING CIRCUITS, INVERTERS, FEEDBACK, MODULATION, SEMICONDUCTOR DEVICES.

Subject Categories : Electrical and Electronic Equipment
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE