- 专利标题： Reference buffer circuits including a non-linear feedback factor
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申请号： US14562707申请日： 2014-12-06
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公开(公告)号： US09614528B2公开(公告)日： 2017-04-04
- 发明人: Mohamed Mostafa Elsayed , Shouli Yan
- 申请人： Silicon Laboratories Inc.
- 申请人地址： US TX Austin
- 专利权人： Silicon Laboratories Inc.
- 当前专利权人： Silicon Laboratories Inc.
- 当前专利权人地址： US TX Austin
- 代理机构： Cesari & Reed LLP
- 代理商 R. Michael Reed
- 主分类号： H03K3/00
- IPC分类号： H03K3/00 ; H03K19/0185
摘要：
In an embodiment, an apparatus may include an amplifier circuit including a first input to receive a signal, a second input to receive a feedback signal, and an output. The apparatus may further include a buffer circuit including an input coupled to the output of the amplifier and including an output coupled to an output node. The apparatus may also include a feedback circuit coupled between the output node and the second input of the amplifier circuit. The feedback circuit may include at least one non-linear resistor configured to define a feedback ratio that changes in response to a voltage at the output node.
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