Invention Application
US20120146719A1 Amplifier with reduced on/off transient and multi-point offset compensation
有权
具有减小的开/关瞬变和多点偏移补偿的放大器
- Patent Title: Amplifier with reduced on/off transient and multi-point offset compensation
- Patent Title (中): 具有减小的开/关瞬变和多点偏移补偿的放大器
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Application No.: US12930487Application Date: 2011-01-07
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Publication No.: US20120146719A1Publication Date: 2012-06-14
- Inventor: Iuri Mehr , Sherif Galal , Todd L. Brooks
- Applicant: Iuri Mehr , Sherif Galal , Todd L. Brooks
- Applicant Address: US CA Irvine
- Assignee: BROADCOM CORPORATION
- Current Assignee: BROADCOM CORPORATION
- Current Assignee Address: US CA Irvine
- Main IPC: H03F1/00
- IPC: H03F1/00

Abstract:
Disclosed is an amplifier designed to substantially reduce an ON/OFF transient. The amplifier comprises a drive block that includes a pre-driver and an output stage. The amplifier also comprises a bypass circuit that is coupled to an output of the pre-driver. The bypass circuit of the amplifier is selectively activated to reduce the ON/OFF transient. The bypass circuit may comprise an auxiliary output stage that can be coupled to provide selective activation. The amplifier may also be configured to provide multi-point offset compensation. Also disclosed is a related method. The amplifier and the related method may be incorporated into an audio amplifier used in a cellular telephone or other mobile audio device.
Public/Granted literature
- US08482347B2 Amplifier with reduced on/off transient and multi-point offset compensation Public/Granted day:2013-07-09
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