Level shifter with reduced power consumption and low...

Details Level shifter with reduced power consumption and low... Level shifter with reduced power consumption and low...

2009-01-21

2010-12-07

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S062000, C326S081000

Reexamination Certificate

active

07847611

ABSTRACT:
A level shifter includes a Not gate coupled to a signal input and operable between a first high level and a low level; a first PMOS transistor coupled to a second voltage source and a control end; a first NMOS transistor coupled to the first PMOS transistor, a Not-gate output end and a reference voltage; and a control circuit coupled to the signal input, the Not-gate output end and the second voltage source. When the signal input and the Not-gate output end are at the first high level and the low level, respectively, the first PMOS transistor is turned on so that the signal output is at a second high level; and when the signal input and the Not-gate output end are switched contrarily, the first PMOS transistor is turned off and the signal output is at the low level.

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Fujio Ishihara, Farhana Sheikh, and Borivoje nikolic, Level Conversion for Dual-Supply Systems,IEEE Transactions on Very Large Scale Integration, VLSI, Systems. vol. 12, No. 2, Feb. 2004, p. 185-p. 195.

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