Timing discriminator using leading-edge extrapolation
A discriminator circuit to recover timing information from slow-rising pulses by means of an output trailing edge, a fixed time after the starting corner of the input pulse, which is nearly independent of risetime and threshold setting. This apparatus comprises means for comparing pulses with a threshold voltage; a capacitor to be charged at a certain rate when the input signal is one-third threshold voltage, and at a lower rate when the input signal is two-thirds threshold voltage; current-generating means for charging the capacitor; means for comparing voltage capacitor with a bias voltage; a flipflop to be set when the input pulse reaches threshold voltage and reset when capacitor voltage reaches the bias voltage; and a clamping means for discharging the capacitor when the input signal returns below one-third threshold voltage.
- Assignee:
- The United States of America as represented by the United States Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4421995
- OSTI ID:
- 6946050
- Resource Relation:
- Patent File Date: Filed date 30 Jul 1981; Other Information: PAT-APPL-288562
- Country of Publication:
- United States
- Language:
- English
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Timing discriminator using leading-edge extrapolation
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Related Subjects
PULSE DISCRIMINATORS
DESIGN
CAPACITORS
COMPARATOR CIRCUITS
ELECTRIC POTENTIAL
OPERATION
PULSE RISE TIME
PULSES
TIME INTERVAL ANALYZERS
TIMING CIRCUITS
DISCRIMINATORS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
MEASURING INSTRUMENTS
PULSE CIRCUITS
TIMING PROPERTIES
440300* - Miscellaneous Instruments- (-1989)