Input circuit

Details Input circuit Input circuit

1978-02-21

1979-07-17

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307205, 307214, 307237, 307296R, H03K 3353, H03K 1708

Patent

active

041616642

ABSTRACT:
An input circuit has at least an enhancement type first MISFET incorporated between an input terminal and a power supply terminal for the input circuit. A gate electrode of the first MISFET is connected to the power supply terminal, and at least a second MISFET is incorporated between the input terminal and a gate electrode of a third MISFET constituting the input circuit. A gate electrode of the second MISFET is connected to the power supply terminal, whereby the dielectric breakdown of the gate of the third MISFET is prevented.

REFERENCES:
patent: 3549903 (1970-12-01), Lodenslager
patent: 3586883 (1971-06-01), Hayes
patent: 3588537 (1971-06-01), Brink
patent: 3828209 (1974-08-01), Kawagoe et al.
Haskett; T. R., Radio-Electronics, Nov. 1964, pp. 33-36.

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