Voltage detection circuit and comparison voltage generator there

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

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307356, 307362, 307494, H03K 508, H03K 524

Patent

active

049528211

ABSTRACT:
In a voltage detection circuit, a comparison voltage generator includes reference-setting capacitors, each having a first terminal connected to a comparison voltage node, and switching circuits provided in association with the respective reference-setting capacitors, each switching circuit selectively connecting a second terminal of the associated reference setting capacitor either to a first potential node or to a second potential node.

REFERENCES:
patent: 4533846 (1985-08-01), Simko
patent: 4668932 (1987-05-01), Drori
patent: 4721865 (1988-01-01), Tallaron et al.
IEEE Journal of Solid-State Circuits, vol. SC-1-8, No. 5; Oct., 1983, "High-Voltage Regulation and Process Considerations for High-Density 5 V-Only E.sup.2 PROM's"; Oto. et al.

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