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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.:

US 10389132 B1

PDFFull Text
Date of Patent:
Aug. 20, 2019

Filed:

Mar. 30, 2017

Ac-dc photovoltaic device

Applicant:

Sungrow Power Supply Co., Ltd., Hefei, Anhui, CN;

Inventors:

Renxian Cao, Anhui, CN;

Yilei Gu, Anhui, CN;

Yu Gu, Anhui, CN;

Jun Xu, Anhui, CN;

Assignee:

SUNGROW POWER SUPPLY CO., LTD., Hefei, Anhui, CN;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Rexford N Barnie

Assistant Examiner:

Rasem Mourad

Int. Cl.
CPC ...
H02J 7/34 (2006.01); H02J 1/10 (2006.01); H02J 3/38 (2006.01); H02P 7/28 (2016.01); F21S 8/08 (2006.01); F21S 9/03 (2006.01); H02M 3/158 (2006.01); H02M 7/5387 (2007.01); F21Y 115/10 (2016.01); H02M 1/10 (2006.01); H02M 1/12 (2006.01); H02M 7/487 (2007.01); H02M 7/5395 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 3/383 (2013.01); F21S 8/085 (2013.01); F21S 9/03 (2013.01); H02M 3/158 (2013.01); H02M 7/53871 (2013.01); H02P 7/28 (2013.01); F21Y 2115/10 (2016.08); H02M 1/10 (2013.01); H02M 1/126 (2013.01); H02M 7/487 (2013.01); H02M 7/5395 (2013.01); H02M 2001/0077 (2013.01); Y02E 10/563 (2013.01);
Abstract

An AC-DC photovoltaic device is provided, including: a photovoltaic module, a direct current side capacitor, a DC-PWM power switching circuit and a controller. The direct current side capacitor is connected in parallel with an output terminal of the photovoltaic module. An input terminal of the DC-PWM power switching circuit is connected with the output terminal of the photovoltaic module. The DC-PWM power switching circuit includes a controllable switch transistor. The controller is configured to output a switch control signal to control a switching state of the controllable switch transistor in the DC-PWM power switching circuit, to control the DC-PWM power switching circuit to output a direct current PWM wave in a case that the switch control signal is a direct current modulation signal, and output an alternating current PWM wave in a case that the switch control signal is an alternating current modulation signal.

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