Title :
Fail-Safe Circuits for Nuclear Protective Systems
Author :
Businaro, T. ; Conti, Ing L. ; Conti, Ing M.
Author_Institution :
Comitato Nazionale per l´´Energia Nucleare Divisione Tecnologica ROMA
fDate :
4/1/1964 12:00:00 AM
Abstract :
The article describes a new set of fail-safe logic blocks particularly suited to safety systems. The input information is normally +5V; in case of alarm, the input drops to 0V. Fundamental blocks (AND, OR, NOT, etc.) are pulse-modulated, so as to achieve 0V output voltage in case of failure. More complex logic function can be synthesized and redundancy can be employed in order to avoid erroneous action.
Keywords :
Delay; Logic circuits; Power amplifiers; Protection; Pulse amplifiers; Pulse circuits; Relays; Safety; Switching circuits; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1964.4323386
