Level shift circuit

Details Level shift circuit Level shift circuit

2008-12-22

2010-06-15

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S081000, C326S063000

Reexamination Certificate

active

07737758

ABSTRACT:
An amplifier including the transistors of a first set operates by a power source VCC2, and amplifies the input signal, changing in the voltage range of the power source VCC2, in the voltage range of the power source VCC2. The output of this amplifier operates using a power source VCC1with a converting portion including the transistors of a second set, and the output of the amplifier is converted into an output within the voltage range of the power source VCC1. The two output amplifiers amplify the output of this converting portion based on a (½) VCC1reference. The converting portion performs the conversion using a plurality of transistors with the power source VCC2taken as a power source and a plurality of transistors7with the power source VCC1taken as a power source, as current mirrors.

REFERENCES:
patent: 7026855 (2006-04-01), Sueoka et al.
patent: 7285992 (2007-10-01), Maida
patent: 7365571 (2008-04-01), Seo et al.
patent: 7-23277 (1995-01-01), None
patent: 2000-244306 (2000-09-01), None
esp@cenet patent abstracts for Japanese Publication No. 2000244306, Publication date Sep. 8, 2000 (1 page).
esp@cenet patent abstract for Japanese Publication No. 7023277, Publication date Jan. 24, 1995 (1 page).

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