Level shift circuit having control circuits for high speed,...

Details Level shift circuit having control circuits for high speed,... Level shift circuit having control circuits for high speed,...

2005-09-06

2005-09-06

Nguyen, Minh (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S063000, C326S080000

Reexamination Certificate

active

06940332

ABSTRACT:
A level shift circuit realizes a high-speed and power-saved operation particularly when the input voltage is at a low level. The level shift circuit includes a first gate voltage control circuit controlled by an inverted signal of an input signal, which is inserted between a gate of a third transistor and a second output terminal; a second gate voltage control circuit controlled by the input signal, which is inserted between a gate of a fourth transistor and a first output terminal; a first transistor; and a second transistor. When the input signal shifts from “H” to “L”, the first transistor turns OFF, the third transistor is turned ON by the first gate voltage control circuit, and then a voltage of the first output terminal rises. The second transistor turns ON, the fourth transistor is turned OFF by the second gate voltage control circuit, and the voltage of the second output terminal goes down.

REFERENCES:
patent: 4450371 (1984-05-01), Bismarck
patent: 6307398 (2001-10-01), Merritt et al.
patent: 6373315 (2002-04-01), Tsuji et al.
patent: 6828825 (2004-12-01), Johnson et al.
patent: 2-188024 (1990-07-01), None

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