Invention Grant
- Patent Title: Mitigating amplifier pop noise
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Application No.: US15385200Application Date: 2016-12-20
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Publication No.: US09954496B2Publication Date: 2018-04-24
- Inventor: Steven G. Brantley , Bharath Karthik Vasan , John Lawrence Caldwell
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- Main IPC: H03F1/14
- IPC: H03F1/14 ; H03F1/30 ; H03F3/187 ; H03G1/00 ; H03G3/30 ; H03F3/30 ; H03F3/45

Abstract:
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.
Public/Granted literature
- US20170179893A1 MITIGATING AMPLIFIER POP NOISE Public/Granted day:2017-06-22
Information query
IPC分类: