Invention Grant
- Patent Title: Transient signal suppression for a class-D audio amplifier arrangement
- Patent Title (中): D类音频放大器布置的瞬态信号抑制
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Application No.: US13329699Application Date: 2011-12-19
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Publication No.: US08686789B2Publication Date: 2014-04-01
- Inventor: Xicheng Jiang , Minsheng Wang
- Applicant: Xicheng Jiang , Minsheng Wang
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox PLLC
- Main IPC: H03F3/38
- IPC: H03F3/38

Abstract:
A Class-D amplifier arrangement is disclosed that implements an auxiliary feedback loop and a primary feedback loop. The auxiliary feedback loop operates upon an input signal when the Class-D amplifier arrangement is operating under a power-up condition and a power-down condition so that a modulated signal is confined within the auxiliary feedback loop during the power-up condition and the power-down condition. The confinement of the modulated signal within the auxiliary feedback loop during the power-up condition and the power-down condition diverts transient signals coupled onto the modulated signal from an output device. The primary feedback loop operates upon the input signal when the Class-D amplifier arrangement is operating under a normal condition so that the modulated signal is introduced to the output device during the normal condition.
Public/Granted literature
- US20130154736A1 Transient Signal Suppression for a Class-D Audio Amplifier Arrangement Public/Granted day:2013-06-20
Information query
IPC分类: