Level shifter circuit

Details Level shifter circuit Level shifter circuit

2008-05-06

2008-05-06

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S081000, C326S062000

Reexamination Certificate

active

07368970

ABSTRACT:
A level shifter circuit includes a level shifter unit and a latch unit. The level shifter unit receives two complementary input signals and converts the voltage levels of two complementary input signals. The latch unit latches the state of two output nodes before the low voltage supply is turned off. On condition that the low voltage supply is off, the level shifter circuit avoids current drainage and ensures the voltage level of the output. The invention has the advantages of small circuit size and being easy to design.

REFERENCES:
patent: 6600358 (2003-07-01), Chan
patent: 6617902 (2003-09-01), Tokumasu et al.
patent: 6717453 (2004-04-01), Aoki
patent: 6750696 (2004-06-01), Shimada et al.
patent: 6762957 (2004-07-01), Hsu et al.
patent: 6819159 (2004-11-01), Lencioni
patent: 6842043 (2005-01-01), Nguyen et al.
patent: 7091748 (2006-08-01), Wada

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