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:
Oct. 20, 2020

Filed:

Oct. 22, 2019
Applicant:

Silicon Laboratories Inc., Austin, TX (US);

Inventors:

Mohammad Al-Shyoukh, Cedar Park, TX (US);

Krishna Pentakota, Austin, TX (US);

Stefan N. Mastovich, Round Rock, TX (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H02J 50/05 (2016.01); H02J 50/80 (2016.01); H02M 3/335 (2006.01); H02M 5/458 (2006.01); H02M 7/797 (2006.01); H02M 1/08 (2006.01); H01L 29/66 (2006.01); H02M 3/338 (2006.01); H02M 1/34 (2007.01); H02H 9/00 (2006.01); H03F 3/04 (2006.01); H01L 29/78 (2006.01); H02M 1/00 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H03F 3/217 (2013.01); H01L 29/66106 (2013.01); H02J 50/05 (2016.02); H02J 50/80 (2016.02); H02M 1/08 (2013.01); H02M 3/3387 (2013.01); H02M 3/33515 (2013.01); H02M 5/458 (2013.01); H02M 7/797 (2013.01); H03F 3/2171 (2013.01); H03F 3/2173 (2013.01); H01L 29/66143 (2013.01); H01L 29/7816 (2013.01); H02H 9/005 (2013.01); H02M 1/32 (2013.01); H02M 1/34 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0003 (2013.01); H03F 3/04 (2013.01);
Abstract

A power transfer device includes an oscillator circuit having a first node, a second node, and a control terminal. The oscillator circuit includes a cascode circuit comprising transistors having a first conductivity type and a first breakdown voltage. The cascode circuit is coupled to the control terminal, the first node, and the second node. The oscillator circuit includes a latch circuit coupled between the cascode circuit and a first power supply node. The latch circuit includes cross-coupled transistors having the first conductivity type and a second breakdown voltage. The first breakdown voltage is greater than the second breakdown voltage. The oscillator circuit may be configured to develop a pseudo-differential signal on the first node and the second node. The pseudo-differential signal may have a peak voltage of at least three times a voltage level of an input DC signal on a second power supply node.


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