公开(公告)号：EP1749342A1

公开(公告)日：2007-02-07

申请号：EP05754923.0

申请日：2005-05-19

申请人： RAYTHEON COMPANY

发明人： SELIN, John, R.

IPC分类号： H03F1/02 ,  H03F3/191 ,  H03F3/21 ,  H03F3/72

CPC分类号： H03F1/0261 ,  H03F1/0277 ,  H03F1/0288 ,  H03F3/191 ,  H03F3/211 ,  H03F3/72 ,  H03F2200/225 ,  H03F2200/391

摘要： An amplifier having a first transistor with an output coupled to a common output node and a switch for coupling a control electrode of the first transistor to a first bias source to bias such first transistor to a conducting state during a relatively high power operating mode or for removing such control electrode from the first bias source to place the first transistor in a non-conducting condition during a relatively low power operating mode selectively in accordance with a control signal. A second transistor has an output coupled to the common output node and a second bias source coupled to a control electrode to the second transistor to bias such second transistor to a conducting state during both the relatively high power operating mode and the relatively low power operating mode.

公开(公告)号：EP1749342B1

公开(公告)日：2011-03-30

申请号：EP05754923.0

申请日：2005-05-19

申请人： RAYTHEON COMPANY

发明人： SELIN, John, R.

IPC分类号： H03F1/02 ,  H03F3/191 ,  H03F3/21 ,  H03F3/72

CPC分类号： H03F1/0261 ,  H03F1/0277 ,  H03F1/0288 ,  H03F3/191 ,  H03F3/211 ,  H03F3/72 ,  H03F2200/225 ,  H03F2200/391

摘要： An amplifier having a first transistor with an output coupled to a common output node and a switch for coupling a control electrode of the first transistor to a first bias source to bias such first transistor to a conducting state during a relatively high power operating mode or for removing such control electrode from the first bias source to place the first transistor in a non-conducting condition during a relatively low power operating mode selectively in accordance with a control signal. A second transistor has an output coupled to the common output node and a second bias source coupled to a control electrode to the second transistor to bias such second transistor to a conducting state during both the relatively high power operating mode and the relatively low power operating mode.