Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1997-07-15
1999-10-05
Nuton, My-Trang
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327132, G05F 110, G05F 302
Patent
active
059630817
ABSTRACT:
A circuit arrangement having at least two signal paths which can be alternately enabled by feeding respective controllable current sources and by logic signals selecting one of these controllable current sources, while, at a transition from one signal path to the other, the controllable current sources of the relevant two signal paths are controllable by a time-continuously changing control signal during a transition interval, such that currents which can be supplied by these two controllable current sources change continuously and in opposite directions.
The object of implementing this circuit arrangement in such a way that the number of components is noticeably reduced in a device enabling a gradual transition from one setting position to the next is achieved with a selection circuit (1) having a control stage (11; 21; 31; 41; 51) for each signal path (T18,T19; T28,T29; T38,T39; T48,T49; T58,T59), each control stage (11; 21; 31; 41; 51) including:
REFERENCES:
patent: 5796243 (1998-08-01), Kimura
patent: 5796276 (1998-08-01), Phillips et al.
patent: 5811993 (1998-09-01), Dennard et al.
patent: 5883546 (1999-03-01), Kaminishi et al.
Graffenberger Wilhelm
Schillhof Udo
Biren Steven R.
Nuton My-Trang
U.S. Philips Corporation
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