Circuit for detecting level of input voltage

Details Circuit for detecting level of input voltage Circuit for detecting level of input voltage

1985-08-12

1988-06-07

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307350, 307355, H03K 5153, H03K 524

Patent

active

047498803

ABSTRACT:
A circuit for detecting the level of an input voltage is disclosed, in which the input voltage is converted into a current and this current is compared with a reference current obtained by converting a reference voltage. To accomplish such circuit functions, this level detection circuit comprises means for converting the input voltage into a first current, means for converting the reference voltage into a second current, means for producing a third current relative to the first current, means for producing a fourth current relative to the second current, and means for combining the third and fourth current. A detection output terminal is coupled to the combining means.

REFERENCES:
patent: 4464591 (1984-08-01), Rapp
patent: 4573177 (1986-02-01), Petrosky

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