Level shifter circuit

Details Level shifter circuit Level shifter circuit

2007-04-24

2008-10-21

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S068000

Reexamination Certificate

active

07439790

ABSTRACT:
A level shifter circuit. It comprises a first level shifter unit which comprises a first transistor, a second transistor, a first diode, a first capacitor, a second diode and a second capacitor. The first transistor comprises a first gate, a first source/drain and a second source/drain. The first source/drain is electrically connected to the first voltage. The second transistor comprises a second gate electrically connected to the second source/drain, a third source/drain and a fourth source/drain respectively electrically connected to the first voltage and the first gate. The first diode has a first end electrically connected to the second source/drain and a second end receiving an inverted clock pulse signal. The first and the second capacitors are respectively electrically connected to the first and the second diodes. The second diode has a first end electrically connected to the fourth source/drain and a second end receiving a clock pulse signal.

REFERENCES:
patent: 6307398 (2001-10-01), Merritt et al.
patent: 6633192 (2003-10-01), Tsuchiya et al.
patent: 6696858 (2004-02-01), Tokai et al.
patent: 6741230 (2004-05-01), Sakai et al.
patent: 6922095 (2005-07-01), Chiu
patent: 7362624 (2008-04-01), Sun
patent: 2004/0084696 (2004-05-01), Chiu
patent: 578379 (2000-01-01), None
patent: 580793 (2004-03-01), None

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