Level shifter having low peak current

Details Level shifter having low peak current Level shifter having low peak current

2005-08-16

2005-08-16

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S333000, C326S068000

Reexamination Certificate

active

06930518

ABSTRACT:
A level shifter changes an input signal whose level changes between a first voltage level and a ground voltage level into an output signal whose level changes between a second voltage level and the ground voltage level. The level shifter comprising a first input transistor and a second input transistor which receive the input signal and an inversion signal of the input signal, respectively; a first load transistor and a second load transistor, one side of each transistor being connected to the second voltage level; a first switch transistor connected between the first load transistor and the first input transistor, responding to the inversion signal; a second switch transistor connected between the second load transistor and the second input transistor, responding to the input signal; a first output unit for generating an output signal; and a second output unit that generates a complementary signal of the output signal.

REFERENCES:
patent: 5378932 (1995-01-01), Shin et al.
patent: 6043679 (2000-03-01), Kwon
patent: 6459322 (2002-10-01), Cho
patent: 2004/0032291 (2004-02-01), Tseng
patent: 2001 0084439 (2001-09-01), None

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