Patent ID: 9729066
Date: 2017-08-08
CPC Classifications: H02M,Y02B

Claim:
1. An apparatus for converting a first AC signal to a DC signal, comprising: an electronic controller including a processor and a memory; and first, second, and third single-phase AC/DC conversion module each connected to and controlled by said controller, and wherein respective output signals from said conversion modules are electrically joined at an output node, each conversion module comprising: wherein in a first mode of operation where said first AC signal comprises a multi-phase AC signal, said controller is configured to enable operation of said first, second, and third AC/DC conversion modules wherein respective AC components of said respective output signals tend to cancel each other out; and wherein in a second mode of operation where said first AC signal comprises a single-phase AC signal, said controller enables operation of said first and second AC/DC conversion modules and disables operation of said indirect matrix converter of said third AC/DC conversion module, said controller being configured to actuate said H-bridge switching arrangement of said third AC/DC conversion module having an active filter coupled thereto, according to a filtering strategy to reduce said AC component of said output signals of said first and second AC/DC conversion modules.