Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2007-04-03
2007-04-03
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S427000
Reexamination Certificate
active
11324645
ABSTRACT:
The low AC impedance input stage circuit for fast startup applications includes: a first transistor coupled between a first input node and a first output node; a second transistor coupled between a second input node and a second output node, and having a control node coupled to a control node of the first transistor; a third transistor coupled to the first input node and having a control node coupled to the control node of the first transistor; a fourth transistor coupled to the second input node and having a control node coupled to the control node of the third transistor; a first blocking device coupled between the third transistor and a first current source; a second blocking device coupled between the fourth transistor and the first current source; and a bias device coupled between the first current source and the control node of the first transistor.
REFERENCES:
patent: 6501320 (2002-12-01), Le
patent: 6788113 (2004-09-01), Watanabe et al.
patent: 7038501 (2006-05-01), Lee et al.
patent: 7123057 (2006-10-01), Wang et al.
Al-Shyoukh Mohammad A.
Perez Raul A.
Brady W. James
Nguyen Long
Stewart Alan K.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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