Patent ID: 11912147
Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. An electric vehicle charger comprising:
a rectifier comprising a first number of power modules;
a converter comprising a second number of power modules, wherein the second number is equal to the first number;
wherein a power module comprises:
a first switch;
a second switch; and
an LC filter electrically coupled to the first and second switches, the LC filter comprising one or more inductors and one or more capacitors;

a DC bus electrically coupled to the rectifier and the converter; and
a DC ground electrically coupled to:
a neutral point of one or more capacitors of the power modules of the rectifier; and
a neutral point of one or more capacitors of the power modules of the converter.