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Programmable PulserUser controls number of clock pulses to prevent burnout. New digital programmable pulser circuit in three formats; freely running, counted, and single pulse. Operates at frequencies up to 5 MHz, with no special consideration given to layout of components or to terminations. Pulser based on sequential circuit with four states and binary counter with appropriate decoding logic. Number of programmable pulses increased beyond 127 by addition of another counter and decoding logic. For very large pulse counts and/or very high frequencies, use synchronous counters to avoid errors caused by propagation delays. Invaluable tool for initial verification or diagnosis of digital or digitally controlled circuity.
Document ID
19880000459
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Baumann, Eric
(NASA Lewis Research Center, Cleveland, Ohio.)
Merolla, Anthony
(Sverdrup Technology, Inc.)
Date Acquired
August 13, 2013
Publication Date
October 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Components And Circuits
Report/Patent Number
LEW-14585
Accession Number
88B10459
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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