The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 24, 2015

Filed:

May. 14, 2014
Applicant:

Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;

Inventor:

Mykhaylo Teplechuk, Edinburgh, GB;

Assignee:

Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01); H03K 3/356 (2006.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 3/356182 (2013.01); H03K 3/35613 (2013.01); H03K 19/018592 (2013.01);
Abstract

A level shifter does not require any DC (standby) current consumption and has a fast operation with low propagation delay. The level shifting from input to output voltage ranges is performed by a pair of level shifting capacitors. The input-output power voltages domains are unrestricted and flexible. DC isolation is deployed between power domains. Symmetrical rise/fall times are without duty cycle distortion. Over voltage stress is reduced by using metal capacitors. Finally the level shifter does not use high-voltage devices for level shifting purpose. Embodiments of level shifters provide one-way level shifting and bi-directional level shifting.


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