Patent · US Active

Class D amplifier

US7482870B2 · kind B2 · utility

18Cited by
6References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 28, 2006
Grant dateJan 27, 2009
Priority date
Expiry dateOct 26, 2026

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03F2200/66
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A class D amplifier includes: an amplifier that generates a digital signal for driving a load based on an input signal; an attenuator that attenuates the input signal according to an attenuation command signal; and a clip prevention controller that outputs the attenuation command signal to intermittently attenuate the input signal when the digital signal is brought into a clip state or a near-clip state.

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