Variable conversion rate analog-to-digital converter

Details Variable conversion rate analog-to-digital converter Variable conversion rate analog-to-digital converter

1990-06-05

1992-07-07

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341166, H03M 150

Patent

active

051286769

ABSTRACT:
A high resolution and high speed analog to digital converter for use with a transducer in measuring parameters such as weight, which may stay the same or which may change in the system, the converter having an integrator which integrates for a fixed period the output voltage from the transducer, and subsequently deintegrates a known reference voltage, the deintegration times varying depending upon the magnitude of the transducer output voltage which has been integrated, a comparator comparing the deintegration times of successive conversions and shortening the integration times for the transducer output so as to obtain more conversions per time period to provide a high speed readout when the transducer output is changing, but lengthening the integration times to provide a high resolution readout when the comparison of deintegration times does not reveal any change in the transducer output.

REFERENCES:
patent: 3316547 (1967-04-01), Ammann
patent: 3728625 (1973-04-01), Senour et al.
patent: 4270119 (1981-05-01), Mitamura
patent: 4366874 (1983-01-01), Pidoux et al.
patent: 4568913 (1986-02-01), Evans
patent: 4620178 (1986-10-01), Naito
patent: 4644323 (1987-02-01), Chamran et al.
patent: 4857933 (1989-08-01), Knight
patent: 4908623 (1990-03-01), Ullestad
Dual-Slope Integrating Analog-to-Digital Converter With Digital Self-Calibration, Amemiya, Mar. 79, IEEE Tranactions on Instrumentation & Meas.
An Integrating ADC for Differential Transdcuers, Owen, Sep. 79, IEEE Transactions on Instrumentation & Measurement.

Affiliated with

Also associated with

Rating

Variable conversion rate analog-to-digital converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable conversion rate analog-to-digital converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable conversion rate analog-to-digital converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1832389