Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1993-07-01
1994-11-22
Wambach, Margaret R.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327530, 327322, H03K 1716
Patent
active
053672011
ABSTRACT:
A control circuit system for controlling one or more parameters in a circuit with at least one operational stage is disclosed, in the form of a delay stage or a logic stage, the operational stage comprising at least one operational circuit, at least one operational current source for supplying a drive current for the operational stage, and at least one operational load. The operational stage also comprises a number of controllable components of the operational current source and of the operational load, allowing control of the size of the drive current and of the load, respectively, in the operational stage. At least one reference stage includes essentially an image circuit of the operational stage with a reference current source for supplying a drive current for the reference stage and a reference load, comprising a number of controllable reference components, allowing control of the size of the drive current and the load, respectively, of the reference stage. The reference stage, using a reference quantity, controls the currents of the reference and operational current sources to the reference load and the operational load components, respectively.
REFERENCES:
patent: 4410813 (1983-10-01), Barker et al.
patent: 4435652 (1984-03-01), Stevens
patent: 4791318 (1988-12-01), Lewis et al.
Telefonaktiebolaget L M Ericsson
Wambach Margaret R.
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