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. 24, 2023

Filed:

Jun. 05, 2023
Applicant:

Hefei Clt Microelectronics Co. Ltd, Anhui, CN;

Inventors:

Lin Cheng, Anhui, CN;

Feng Wu, Anhui, CN;

Jingyi Yuan, Anhui, CN;

Zeguo Liu, Anhui, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 3/156 (2006.01); H02M 1/084 (2006.01); H02M 1/00 (2006.01); H02M 3/157 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1586 (2021.05); H02M 1/0019 (2021.05); H02M 1/0845 (2013.01); H02M 3/157 (2013.01); H02M 3/156 (2013.01); H02M 3/158 (2013.01); H02M 3/1584 (2013.01);
Abstract

Multiphase series capacitor DC-DC converters are provided, including: a power stage circuit configured to convert an input DC voltage into a stable DC voltage required by a load, where the power stage circuit includes inductors of two or more phases, and there is a phase difference with a preset interval between inductor currents of phases for alternately charging the load in sequence, and a bidirectional switch is provided between inductors of every two adjacent phases, where when the bidirectional switch is turned on, the inductors of the corresponding two phases charge the load simultaneously; and a load transient response circuit configured to, when a load transient positive step occurs, control one or more bidirectional switches to be turned on to make inductors of two or more corresponding phases charge the load simultaneously. Control methods of such converters are also provided, which can realize fast response to load transient changes.


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