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.
Patent No.:
Date of Patent:
May. 16, 2023
Filed:
Dec. 25, 2020
Applicant:
Sungrow Renewables Development Co., Ltd., Hefei, CN;
Inventors:
Zongjun Yang, Anhui, CN;
Xiaoguang Li, Anhui, CN;
Assignee:
SUNGROW RENEWABLES DEVELOPMENT CO., LTD., Hefei, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02J 3/38 (2006.01); H02M 7/44 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); H02J 3/381 (2013.01); H02J 2300/24 (2020.01); H02M 7/44 (2013.01);
Abstract
A circuit for modulating a control signal, an inverter and a system for controlling a photovoltaic string. The circuit is based on a DC/DC boost circuit. The DC/DC boost circuit includes a controllable switch circuit, via which a second capacitor charges a first capacitor in the DC/DC boost circuit. A switch state of a first controllable switch in the DC/DC boost circuit is controlled when a voltage of the first capacitor is greater than or equal to a first voltage threshold, so that the first capacitor generates a control signal with a predetermined characteristic waveform.