Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1978-03-13
1980-07-15
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307265, 307229, H03K 1768
Patent
active
042130654
ABSTRACT:
A device for providing a selectively variable proportion of an electrical signal, which can be used instead of a conventional resistive track potentiometer, is disclosed. The device comprises two switching devices, typically CMOS transmission gates, connected in series between two inputs for receiving the electrical signal, an output at the series connection of the switching devices, and a control circuit for cyclically switching the switching devices between high and low conductivity states. The control circuit is so arranged that when one of the switching devices is in its high conductivity state, the other is in its low state and vice versa, and the control circuit is arranged to control selectively the relative durations that the devices remain in their different conductivity states. A filter is connected to the output and in use, the output signal from the filter is of the same general waveform as the signal applied to the inputs but of a magnitude determined by the selected relative durations of the high and low conductivity states, determined by the control circuit.
REFERENCES:
patent: 3466526 (1969-09-01), Cole
patent: 3488520 (1970-01-01), Hunter
patent: 3631528 (1971-12-01), Green
Davis B. P.
Hughes Microelectronics Limited
Link, Jr. Lawrence V.
MacAllister W. H.
Miller, Jr. Stanley D.
LandOfFree
Device for providing a selectively variable proportion of an ele does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for providing a selectively variable proportion of an ele, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for providing a selectively variable proportion of an ele will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-465847