- 专利标题: Mitigating amplifier pop noise
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申请号: US15385200申请日: 2016-12-20
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公开(公告)号: US09954496B2公开(公告)日: 2018-04-24
- 发明人: Steven G. Brantley , Bharath Karthik Vasan , John Lawrence Caldwell
- 申请人: TEXAS INSTRUMENTS INCORPORATED
- 申请人地址: US TX Dallas
- 专利权人: TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人: TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址: US TX Dallas
- 代理商 Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- 主分类号: H03F1/14
- IPC分类号: H03F1/14 ; H03F1/30 ; H03F3/187 ; H03G1/00 ; H03G3/30 ; H03F3/30 ; H03F3/45
摘要:
At least some embodiments are directed to a system comprising an amplifier containing a first bias current source and configured to provide an output voltage at a node, a gain stage coupled to the node and comprising a second bias current source, and a buffer stage coupled to the node and comprising third and fourth bias current sources and an additional set of bias current sources, the third and fourth bias current sources are able to activate output transistors that are configured to increase current provided to a load. The system also comprises a controller configured to activate the first bias current source, to activate the second bias current source after the first bias current source is activated, to activate the bias current sources in the set after the first bias current source is activated, and to activate the third and fourth bias current sources after the first and second bias current sources are activated and after the bias current sources in the set are activated.
公开/授权文献
- US20170179893A1 MITIGATING AMPLIFIER POP NOISE 公开/授权日:2017-06-22
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