High speed saturation prevention for saturable circuit elements

Details High speed saturation prevention for saturable circuit elements High speed saturation prevention for saturable circuit elements

1995-12-12

1997-08-26

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 58, 361 86, 361 90, H03K 5153

Patent

active

056614225

ABSTRACT:
A protection circuit inhibits saturation and damage of sensitive circuit elements when an input signal goes out of a nominal input range. The protection circuit includes an out-of-range detector which compares the input signal to reference levels to determine if it is within the range. If it is not, a control circuit substitutes a supplemental signal that is slightly out of range, but not so far out of range as to cause any substantial saturation. Supplemental signal sources that produce supplemental signals slightly outside the high and low ends of the range with error margins, not more than about 750 mV, that lie just outside the range; an out-of-range input is replaced by the supplemental signal with the closest value. The invention is particularly applicable to multistep/subranging analog-to-digital/converters.

REFERENCES:
patent: 3800198 (1974-03-01), Graf et al.
patent: 4237509 (1980-12-01), Asplund
patent: 4571656 (1986-02-01), Ruckman
patent: 4613770 (1986-09-01), Raab
patent: 4616305 (1986-10-01), Damiano et al.
patent: 4703191 (1987-10-01), Ferguson
patent: 4713740 (1987-12-01), Drabing
patent: 4815052 (1989-03-01), Walker
patent: 4823227 (1989-04-01), Grant
patent: 5089925 (1992-02-01), Lester
patent: 5111353 (1992-05-01), Kotowski et al.
patent: 5319259 (1994-06-01), Merrill
patent: 5325258 (1994-06-01), Choi et al.
patent: 5400237 (1995-03-01), Flanagan et al.
patent: 5479119 (1995-12-01), Tice et al.
patent: 5498985 (1996-03-01), Parle et al.
Grebene, Bipolar and MOS Analog Integrated Circuit Design, John Wiley & Sons, 1984, pp. 835-866.
Allen et al., CMOS Analog Circuit Design, Holt, Rinehart and Winston, Inc. 1987 pp. 198-204.

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