Invention Grant
US08233641B2 Method and topology to switch an output stage in a class ab audio amplifier for wireless applications
有权
用于在无线应用的音频放大器中切换输出级的方法和拓扑
- Patent Title: Method and topology to switch an output stage in a class ab audio amplifier for wireless applications
- Patent Title (中): 用于在无线应用的音频放大器中切换输出级的方法和拓扑
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Application No.: US11109410Application Date: 2005-04-19
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Publication No.: US08233641B2Publication Date: 2012-07-31
- Inventor: Pascal Guilbert
- Applicant: Pascal Guilbert
- Applicant Address: FR
- Assignee: Atmel Rousset S.A.S.
- Current Assignee: Atmel Rousset S.A.S.
- Current Assignee Address: FR
- Agency: Fish & Richardson P.C.
- Priority: FR0500506 20050118
- Main IPC: H03F21/00
- IPC: H03F21/00
Abstract:
A circuit and method of switching an output of a single preamplifier to or from multiple amplifier output stages. The preamplifier output is switched between multiple audio amplifier output stages without degrading the performance of the output signal. A switching circuit selectively couples the preamplifier output to an amplifier output stage and also couples a feedback loop between the selected amplifier output stage and the preamplifier stage.
Public/Granted literature
- US20060159292A1 Method and topology to switch an output stage in a class ab audio amplifier for wireless applications Public/Granted day:2006-07-20
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