发明申请
- 专利标题: System to accelerate settling of an amplifier
- 专利标题(中): 用于加速放大器稳定的系统
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申请号: US11182972申请日: 2005-07-18
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公开(公告)号: US20050248406A1公开(公告)日: 2005-11-10
- 发明人: Josephus van Engelen , Kwang Kim , Mark Chambers
- 申请人: Josephus van Engelen , Kwang Kim , Mark Chambers
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 主分类号: H03F3/45
- IPC分类号: H03F3/45
摘要:
A system and method are used to accelerate settling or steady state of an amplifier in an amplifier system. This is used to ensure the amplifier reaches steady-state within a specified time period from stand-by or another state without using more current than is needed for steady-state. A comparator in a common-mode feedback system compares a desired amplifier output signal to one or more nodes of the amplifier. A result of the comparison is compared to a threshold value using a comparator in a settling acceleration system. If the result crosses the threshold, a controller turns on a driver in the settling acceleration system. The driver pulls on one or more nodes of the amplifier, which, along with a driver in the amplifier system pulling on the node, quickly brings the amplifier to settling or steady state.
公开/授权文献
- US07142057B2 System to accelerate settling of an amplifier 公开/授权日:2006-11-28
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