Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1975-07-17
1977-05-24
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307351, 307318, 329101, 357 13, 357 14, H03K 520, H01L 2990, H01L 2992
Patent
active
040258025
ABSTRACT:
In a capacitance circuit having a capacitance element which exhibits a breakdown characteristic and which generates noises at breakdown, the improvement comprising a constant-voltage element, which has a lower breakdown voltage than the capacitance element and a lower noise level than the capacitance element in the state of breakdown, connected in parallel with the capacitance element. The voltage across the capacitance element is clamped at the breakdown voltage of the constant-voltage element, so that the capacitance element is prevented from breaking down and thus generating noise components.
REFERENCES:
patent: 2964655 (1960-12-01), Mann
patent: 3118302 (1964-01-01), Fathaver
patent: 3402303 (1968-09-01), Painter
Horie Noboru
Inoue Fumihito
Nakajima Yoshiji
Hitachi , Ltd.
Zazworsky John
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