Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1985-04-08
1987-04-21
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307354, 307362, 307296R, H03K 5153
Patent
active
046599444
ABSTRACT:
A voltage detecting circuit is provided for generating an output signal when an input signal exceeds the power supply voltage by a predetermined amount. A reference current is established by an output stage using a first current mirror. A second current mirror is connected to the output stage and detects the input voltage level by forcing a greater or lesser amount of current through the output stage to provide a high or low level output voltage.
REFERENCES:
patent: 4318013 (1982-03-01), Thomas et al.
patent: 4463270 (1984-07-01), Gordon
patent: 4463271 (1984-07-01), Gill, Jr.
patent: 4496855 (1985-01-01), Yamamura
Allgood Robert N.
Miller, Sr. James A.
Ulmer Richard W.
Fisher John A.
King Robert L.
Motorola Inc.
Myers Jeffrey Van
Zazworsky John
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