US 2010/0164592 A1Published application

Level shift circuit

OwnerHak-Soo Kim, Nam-Jin Songinventors

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Abstract

A level shift circuit. A level shift circuit may include a first voltage supply control unit connected to a first voltage terminal to control a supply of a first voltage via a first and/or second path according to statuses of first and/or second input signals inputted differentially, a second voltage supply control unit connected to a second voltage terminal to control a supply of a second voltage via a first and/or second path, a switching unit controlling a connection between first and second voltage supply control units on a first and/or second path, and/or a buffer unit outputting an output signal corresponding to a first voltage and/or a second voltage in response to a first potential outputted between a first voltage supply control unit and a switching unit and/or a second potential output between a second voltage supply control unit and a switching unit.

Claims20

Dependent claims

An apparatus comprising:

a first voltage supply control unit connected to a first voltage terminal configured to control a supply of a first voltage through at least one of a first path and a second path according to statuses of a first input signal and a second input signal;
a second voltage supply control unit connected to a second voltage terminal configured to control a supply of a second voltage through said at least one of said first path and said second path;
a switching unit configured to control a connection between said first voltage supply control unit and said second voltage supply control unit on said at least one of said first path and said second path;
and
a buffer unit configured to output an output signal corresponding to at least one of said first voltage and said second voltage in response to at least one of a first potential output between said first voltage supply control unit and said switching unit and a second potential output between said second voltage supply control unit and said switching unit.

2 more elements

A method comprising:

forming a first voltage supply control unit connected to a first voltage terminal configured to control a supply of a first voltage through at least one of a first path and a second path according to statuses of a first input signal and a second input signal;
forming a second voltage supply control unit connected to a second voltage terminal configured to control a supply of a second voltage through said at least one of said first path and said second path;
forming a switching unit configured to control a connection between said first voltage supply control unit and said second voltage supply control unit on said at least one of said first path and said second path;
and
forming a buffer unit configured to output an output signal corresponding to at least one of said first voltage and said second voltage in response to at least one of a first potential output between said first voltage supply control unit and said switching unit and a second potential output between said second voltage supply control unit and said switching unit.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/640,973Filed 17 Dec 2009
Priority: KR 10-2008-013777131 Dec 2008
Published: 1 Jul 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H03K 3/356113
Using complementary field-effect transistors: using additional transistors in the input circuit
H03K 3/015
Details: modifications of generator to maintain energy constant
H03K 3/0375
Bistable circuits: provided with means for increasing reliability; for protection; for ensuring a predetermined initial state when the supply…
H03K 3/356182
Using complementary field-effect transistors: with additional means for controlling the main nodes

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