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:
May. 21, 2019

Filed:

Aug. 17, 2017
Applicant:

Intersil Americas Llc, Milpitas, CA (US);

Inventors:

Sitthipong Angkititrakul, Fremont, CA (US);

Jian Yin, San Ramon, CA (US);

Assignee:

INTERSIL AMERICAS LLC, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/08 (2006.01); H02M 1/44 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1588 (2013.01); H02M 1/083 (2013.01); H02M 1/44 (2013.01); H02M 2001/0054 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1425 (2013.01); Y02B 70/1466 (2013.01); Y02B 70/1491 (2013.01);
Abstract

Disclosed herein is a power converter with low step down conversion ratio with improved power conversion efficiency. The power converter includes a first inductor to receive the input voltage, and a second inductor to supply the output voltage to a load. The first inductor and the second inductor are electromagnetically coupled to each other. The power converter further includes a first switch coupled between the first inductor and the second inductor. The first switch is switched according to a pulse having a frequency corresponding to a resonant frequency of (i) a series inductance between the first inductor and the second inductor and (ii) a parallel capacitance across the first switch. The power converter further includes a second switch coupled to the first switch and the second inductor to supply a reference voltage to the second inductor according to another pulse having the frequency.


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