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. 27, 2018

Filed:

Sep. 07, 2017
Applicant:

Nuvoton Technology Corporation, Hsinchu, TW;

Inventors:

Chung-Ming Hsieh, Hsinchu Science Park, TW;

Wei-Chan Hsu, Cupertino, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/07 (2006.01); H02M 3/158 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/32 (2013.01); H02M 3/07 (2013.01);
Abstract

A switched capacitor DC-DC convertor circuit and a production method thereof are described. The switched capacitor DC-DC convertor circuit includes two switched-capacitor circuits each including at least one capacitor, multiple internal switches and the same circuit layout. The internal switches of the two switched-capacitor circuits corresponding in position to each other are controlled by different control signals, and the turn-on durations of the control signals do not overlap. The capacitors of the two switched capacitor circuits are connected by an interconnection switch, and a turn-on duration of a control signal for the interconnection switch also does not overlap with that of the control signals for the internal switches. The switched capacitor DC-DC convertor circuit has a lower switching power loss compared to current state of the art.


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