Safety control device and process with analog power output
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United States of America Patent
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Apr 23, 1996
Grant Date -
N/A
app pub date -
May 5, 1994
filing date -
May 6, 1993
priority date (Note) -
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Abstract
The safety control device with digital input and analog output, is intended to deliver a mean output power above a specified threshold when two binary input sequences which are complementary or in phase opposition are applied to the input and an output power appreciably below the threshold in all other cases. It comprises a primary voltage source (18) supplying a cascade of several modules (16.sub.1 , . . . , 16.sub.k) each having an AC converter bridge and a rectifier, each branch of the AC converter bridge being controlled by one of the sequences.
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