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:
Feb. 07, 2023

Filed:

Sep. 01, 2021
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Thomas Merlin Jahns, Madison, WI (US);

Hang Dai, Madison, WI (US);

Bulent Sarlioglu, Madison, WI (US);

Renato Amorim Torres, Madison, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/521 (2006.01); H02P 27/06 (2006.01); H02M 7/523 (2006.01);
U.S. Cl.
CPC ...
H02M 7/521 (2013.01); H02M 7/523 (2013.01); H02P 27/06 (2013.01);
Abstract

A switching circuit for a current source inverter includes a first inverter leg, a second inverter leg, and a controller. The first inverter leg includes a first reverse-voltage-blocking (RB) switch, a second RB switch, and a third RB switch that are connected in series between a first bus line and a second bus line. The second inverter leg includes a fourth RB switch, a fifth RB switch, and a sixth RB switch are connected in series between the first bus line and the second bus line. The controller is configured to control a switch between an on-state and an off-state for each RB switch. When in the on-state, a reverse voltage is blocked by a respective RB switch, and a current with a positive polarity is conducted through the respective RB switch. When in the off-state, a voltage and the current are blocked by the respective RB switch.


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