Level shift circuit

Details Level shift circuit Level shift circuit

2008-03-19

2009-12-29

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S080000

Reexamination Certificate

active

07639060

ABSTRACT:
A level shift circuit includes a first capacitor circuit including capacitors connected in series between a ground and a predetermined potential, a first trigger circuit coupled to the predetermined potential side of the first capacitor circuit, an input terminal coupled to the ground side of the first capacitor circuit, a second capacitor circuit including capacitors connected in series between the ground and the predetermined potential, a second trigger circuit coupled to the predetermined potential side of the second capacitor circuit, an inverter coupled between the input terminal and the ground potential side of the second capacitor circuit, and a SR latch circuit having a first input coupled to an output of the first trigger circuit and a second input coupled to an output of the second trigger circuit.

REFERENCES:
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patent: 6326831 (2001-12-01), Kumagai
patent: 6452365 (2002-09-01), Majumdar et al.
patent: 6501321 (2002-12-01), Kumagai
patent: 6646469 (2003-11-01), Yushan
patent: 7239181 (2007-07-01), Himi et al.
patent: 102006037336 (2006-10-01), None
patent: A-2005-175130 (2005-06-01), None
Texas Instruments, 3.3-V/5-V High-Speed Digital Isolators, Jan., 2006.
Office Action dated Apr. 15, 2009 from German Patent Office in the corresponding DE Application No. 102008014916.0 (and English Translation).

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