发明授权
US08319559B2 Active bias control circuit for an amplifier and method of power up sequencing the same
有权
放大器的主动偏置控制电路和上电顺序的方法相同
- 专利标题： Active bias control circuit for an amplifier and method of power up sequencing the same
- 专利标题（中）： 放大器的主动偏置控制电路和上电顺序的方法相同
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申请号： US12924674申请日： 2010-10-01
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公开(公告)号： US08319559B2公开(公告)日： 2012-11-27
- 发明人: Fatih Kocer , Frank A. Traut , Yalcin Alper Eken , Katzin Peter
- 申请人： Fatih Kocer , Frank A. Traut , Yalcin Alper Eken , Katzin Peter
- 申请人地址： US MA Chelmsford
- 专利权人： Hittite Microwave Corporation
- 当前专利权人： Hittite Microwave Corporation
- 当前专利权人地址： US MA Chelmsford
- 代理机构： Iandiorio Teska & Coleman, LLP
- 主分类号： H03F3/04
- IPC分类号： H03F3/04
摘要：
An active bias control circuit for an amplifier includes a low dropout regulator for providing a regulated voltage to provide an input current to the amplifier, and a current sense circuit responsive to the low dropout regulator for sensing a scaled down replica of the input current to the amplifier. An amplifier control circuit adjusts a control voltage to the amplifier in response to the sensed, scaled down replica of the input current to regulate the input current to the amplifier. A method for power up sequencing an amplifier for an active bias control circuit for the amplifier is also disclosed.
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