Miscellaneous active electrical nonlinear devices – circuits – and – Specific input to output function – By differentiating
Patent
1996-01-11
1997-11-18
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific input to output function
By differentiating
327339, G06G 718
Patent
active
056892055
ABSTRACT:
A switched current differentiator includes first and second interconnected current memory cells, An input current is applied to terminal (1) and is fed on line (2) to the current memory cells, A first output current is derived from the first current memory cell via a transistor and a second output current is derived from the second current memory cell via another transistor. The second output current is inverted (A1) and summed with the first output current. The summed current is inverted (A2) and fed to an output via a switch on odd phases of a clock signal and is fed directly to the output via a further switch (S4) on even phases of a clock signal. A damped differentiator may be formed using a feeback loop. In a fully differential version of the differentiator the inverters may be constructed by the correct interconnection of the differential signals, i.e. by crossing over connections.
REFERENCES:
patent: 4866368 (1989-09-01), Bird
patent: 5012133 (1991-04-01), Hughes
patent: 5023489 (1991-06-01), Macbeth
patent: 5097155 (1992-03-01), Liu et al.
patent: 5109169 (1992-04-01), Hughes
patent: 5179301 (1993-01-01), Hughes
patent: 5296752 (1994-03-01), Goenenveld et al.
patent: 5349245 (1994-09-01), Hughes et al.
patent: 5400273 (1995-03-01), Hughes et al.
patent: 5473275 (1995-12-01), Hughes et al.
Hughes John B.
Moulding Kenneth W.
Callahan Timothy P.
Englund Terry L.
U.S. Philips Corporation
LandOfFree
Switched current differentiator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switched current differentiator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switched current differentiator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1568608