Voltage scaling circuit for protecting an input node to a protec

Details Voltage scaling circuit for protecting an input node to a protec Voltage scaling circuit for protecting an input node to a protec

1998-01-09

1999-05-18

Gaffin, Jeffrey

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transient responsive

361 56, 361 91, H02H3/20

Patent

active

059056215

ABSTRACT:
A voltage scaling circuit for protecting an input node to a protected circuit uses a voltage shifting circuit that includes two nmos transistors. One nmos transistor is configured as a bi-directional voltage follower and the other nmos transistor is configured as uni-directional voltage follower to facilitate input high level shifting between an input signal node, such as a pin of an integrated circuit and an input node to the protected circuit.

REFERENCES:
patent: 5319259 (1994-06-01), Merrill
patent: 5333093 (1994-07-01), Krautschneider et al.

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