Integrator having drop-out circuit

Details Integrator having drop-out circuit Integrator having drop-out circuit

1979-06-20

1981-02-10

Ruggiero, Joseph F.

Boots, shoes, and leggings

235 92FL, 235 92TF, 364510, G06J 100

Patent

active

042505577

ABSTRACT:
An integrator for totalizing with respect to time an input signal representing a process variable being metered to provide a total reading for a given period. The integrator includes a drop-out circuit functioning to abruptly reduce to zero the signal fed to the totalizer when the input signal falls below a predetermined level where it no longer accurately reflects the variable. The input signal is applied to a duty-cycle converter that cyclically generates a rectangular wave whose ON period has a duration which is a function of the input signal, the higher the signal level, the shorter the OFF period in the cycle. Clock pulses at a constant frequency are normally supplied to a totalizer during the ON period. A drop-out counter functions to count the clock pulses during the OFF period, the number of pulses counted representing the duration of this period. If the OFF period duration exceeds the setting of the drop-out counter, the counter acts to inhibit the supply of clock pulses to the totalizer in the succeeding ON period so that the input signal as then seen by the totalizer is effectively zero.

REFERENCES:
patent: 3505673 (1970-04-01), James
patent: 3754126 (1973-08-01), Williams, Jr.
patent: 4075701 (1978-02-01), Hoffmann

Affiliated with

Also associated with

Rating

Integrator having drop-out circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrator having drop-out circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrator having drop-out circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1668505