Patent · US Expired

Audio power amplifier

US4087761A · kind A · utility

15Cited by
3References
46Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 24, 1976
Grant dateMay 2, 1978
Priority date
Expiry dateJun 24, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03F2200/27
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An audio power amplifier can be operated in either class A, class B or class AB amplifier modes by selectively switching bias values set in a bias setting circuitry provided for a driver stage which drives the main power amplifier stage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.