Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2006-11-14
2006-11-14
Barnie, Rexford (Department: 2819)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S253000, C330S285000, C330S295000, C330S296000
Reexamination Certificate
active
07135928
ABSTRACT:
A Class AB voltage-to-current converter includes a plurality of DC coupled transconductance stages that produce a linearized output and a biasing circuit. The biasing circuit generates a primary bias voltage that is greater than a generated secondary bias voltage. As such, the first transconductance stage becomes active before the second transconductance stage with respect to the magnitude of a differential input voltage, thereby allowing the transconductance of the secondary transconductance stage to be added (or subtracted) from the transconductance of the primary stage to improve the overall transconductance of the Class AB voltage-to-current converter. As each of the plurality of transconductance stages is biased differently from the others, the various transconductance stages are biased on to differing amounts based upon the biasing signals as well as the input signal.
REFERENCES:
patent: 5079515 (1992-01-01), Tanimoto
patent: 6181204 (2001-01-01), Smith et al.
patent: 6188281 (2001-02-01), Smith et al.
patent: 6489848 (2002-12-01), Smith et al.
patent: 6496067 (2002-12-01), Behzad et al.
patent: 6518839 (2003-02-01), Gibson et al.
Barnie Rexford
Broadcom Corporation
Garlick & Harrison & Markison
Harrison James A.
Nguyen Khai M.
LandOfFree
Method for transconductance linearization for DC-coupled... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for transconductance linearization for DC-coupled..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for transconductance linearization for DC-coupled... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3652792