Invention Grant
- Patent Title: Circuit and method for reducing noise in class D amplifiers
- Patent Title (中): 降低D类放大器噪声的电路和方法
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Application No.: US12907918Application Date: 2010-10-19
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Publication No.: US08416017B2Publication Date: 2013-04-09
- Inventor: Paul Kohut , Peter L. Winship , Peter Kowalcyzk , Steven Metz , Kurt Keown
- Applicant: Paul Kohut , Peter L. Winship , Peter Kowalcyzk , Steven Metz , Kurt Keown
- Applicant Address: US CA Berkeley
- Assignee: Meyer Sound Laboratories, Incorporated
- Current Assignee: Meyer Sound Laboratories, Incorporated
- Current Assignee Address: US CA Berkeley
- Agency: Beeson Skinner Beverly, LLP
- Main IPC: H03F3/38
- IPC: H03F3/38 ; H03F3/68
Abstract:
A circuit for reducing noise in Class D amplifiers has a power stage voltage control means (17, 21, 22) responsive to defined signal conditions of the audio signal input (1). The power stage voltage control means is operative to lower the voltage at the supply voltage input (31) of the amplifier's switching power output stage (30) upon the detection of a defined condition in the audio signal input such that the Class-D amplifier operates at reduced voltage (“idles”) during the defined audio input signal condition.
Public/Granted literature
- US20110254625A1 CIRCUIT AND METHOD FOR REDUCING NOISE IN CLASS D AMPLIFIERS Public/Granted day:2011-10-20
Information query
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