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:
Jul. 09, 2024

Filed:

Mar. 16, 2022
Applicant:

Santak Electronic (Shenzhen) Co., Ltd., Shenzhen, CN;

Inventors:

Yue Yang, Shenzhen, CN;

Dengke Zhang, Shenzhen, CN;

Yulong Hao, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/5395 (2006.01); H02M 1/36 (2007.01); H02M 3/335 (2006.01); H02M 7/487 (2007.01); H02M 7/797 (2006.01);
U.S. Cl.
CPC ...
H02M 7/5395 (2013.01); H02M 1/36 (2013.01); H02M 3/33584 (2013.01); H02M 7/487 (2013.01); H02M 7/797 (2013.01);
Abstract

A converter includes a bidirectional DC-AC converter circuit, an input capacitor connected to an AC input of the bidirectional DC-AC converter, a bus capacitor connected to a DC output of the bidirectional DC-AC converter circuit, a switch connected between a positive terminal of the input capacitor and an AC power supply, a pre-charger having an input connected to the AC power supply and an output connected to the DC output of the bidirectional DC-AC converter circuit, and a controller configured to convert the voltage across the bus capacitor into an inverting voltage and apply the inverting voltage to the input capacitor before turning on the switch.


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