SWITCHED ACTIVE BIAS CONTROL AND POWER-ON SEQUENCING CIRCUIT FOR AN AMPLIFIER
摘要
An active bias control circuit for an amplifier includes a switch responsive to a supply voltage for providing an input current to the input of the amplifier, and a current sense circuit coupled to the switch for sensing a scaled down replica of the input current to the amplifier. A first amplifier control circuit is responsive to the current sense circuit for adjusting a first 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. Circuitry for power up sequencing an amplifier for an active bias control circuit for the amplifier is also disclosed.
申请公布号
WO2011043801(A1)
申请公布日期
2011.04.14
申请号
WO2010US02679
申请日期
2010.10.05
申请人
HITTITE MICROWAVE CORPORATION;KOCER, FATIH;EKEN, YALCIN, ALPER;CELIK, ABDULLAH;KATZIN, PETER
发明人
KOCER, FATIH;EKEN, YALCIN, ALPER;CELIK, ABDULLAH;KATZIN, PETER