Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1990-09-14
1992-12-08
LaRoche, Eugene R.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307571, 3072965, H03K 5153, H03K 17687, G11C 1100
Patent
active
051700778
ABSTRACT:
A voltage level detecting circuit is presented having simplistic construction, stable circuit operation and few components. The circuit includes: a p-channel transistor; a resistor; a ground terminal; a first voltage supply terminal for receiving a fixed voltage level; a second voltage supply terminal for receiving a variable voltage level; and an output terminal.
REFERENCES:
patent: 4709165 (1987-11-01), Higuchi et al.
patent: 4716323 (1987-12-01), Wada et al.
Easter "Voltage Monitor Circuit" Technical Notes RCA Sep. 8, 1980, TN No. 1240.
Donaldson Richard L.
Kesterson James C.
LaRoche Eugene R.
Neerings Ronald O.
Shingleton Michael B.
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