View source for STMicroelectronics International N.V. (20240429881). AUDIO AMPLIFICATION METHOD AND DEVICE

=AUDIO AMPLIFICATION METHOD AND DEVICE=


==Organization Name==

[[:Category:STMicroelectronics International N.V.|STMicroelectronics International N.V.]]


[[Category:STMicroelectronics International N.V.]]

==Inventor(s)==

[[:Category:Edoardo Botti of Vigevano (PAVIA) (IT)|Edoardo Botti of Vigevano (PAVIA) (IT)]][[Category:Edoardo Botti of Vigevano (PAVIA) (IT)]]

[[:Category:Francesco Stilgenbauer of Rho (MI) (IT)|Francesco Stilgenbauer of Rho (MI) (IT)]][[Category:Francesco Stilgenbauer of Rho (MI) (IT)]]

[[:Category:Matteo De Ferrari of Oleggio Castello, Novara (IT)|Matteo De Ferrari of Oleggio Castello, Novara (IT)]][[Category:Matteo De Ferrari of Oleggio Castello, Novara (IT)]]

[[:Category:Edoardo Bonizzoni of Pavia (IT)|Edoardo Bonizzoni of Pavia (IT)]][[Category:Edoardo Bonizzoni of Pavia (IT)]]

[[:Category:Piero Malcovati of Pavia (IT)|Piero Malcovati of Pavia (IT)]][[Category:Piero Malcovati of Pavia (IT)]]

==AUDIO AMPLIFICATION METHOD AND DEVICE==


This abstract first appeared for US patent application 20240429881 titled 'AUDIO AMPLIFICATION METHOD AND DEVICE




==Original Abstract Submitted==

signal processing is applied to a digital input audio signal. an analog audio output signal is provided based on the digital input audio signal via a switching converter circuit driven by a pwm signal. the analog audio output signal is sensed to generate an analog feedback signal. the applied signal processing includes: producing a digital error signal indicative of a difference between the digital input audio signal and a digital word signal; applying digital-to-analog conversion to the digital error signal to produce an analog replica of the digital error signal; producing an analog difference signal indicative of a difference between the analog replica of the digital error signal and the analog feedback signal; applying analog-to-digital conversion to the analog difference signal to produce the digital word signal; applying digital filtering to the digital word signal to produce a filtered digital word signal that generates the pwm signal.



[[Category:H03F3/217]]
[[Category:H03F3/183]]
[[Category:H03M3/00]]
[[Category:CPC_H03F3/2175]]