Level shift circuit

Details Level shift circuit Level shift circuit

2006-03-28

2006-03-28

Tran, Anh Q. (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S080000, C326S068000

Reexamination Certificate

active

07019559

ABSTRACT:
A level shift circuit including a first transistor circuit connected between a power supply line and a first node, a second transistor circuit connected between the power supply line and a second node, a first transistor connected between the ground line and the first node, and a second transistor connected between the ground line and the second node. A gate of the first transistor circuit is connected to the second node, and a gate of the second transistor circuit is connected to the first node. An input signal is supplied to a gate of the first transistor and an inverted value of the input signal is supplied to a gate of the second transistor. Additionally, control transistors switch a ratio of inflow current and emission current of the first node or the second node according to a control signal.

REFERENCES:
patent: 5781026 (1998-07-01), Chow
patent: 6020762 (2000-02-01), Wilford
patent: 6542144 (2003-04-01), Kogure et al.

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