Capacitance circuit

Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock

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Details

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

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