公开(公告)号：CA3021060A1

公开(公告)日：2017-10-19

申请号：CA3021060

申请日：2017-04-14

Applicant: EMERSON CLIMATE TECHNOLOGIES

Inventor： MARCINKIEWICZ JOSEPH G ,  BOCKHORST KRAIG

IPC: H02M1/42 ,  F04B49/03 ,  H02M1/44 ,  H02P27/08

Abstract: A converter circuit is provided and includes: a first EMI filter connected to AC lines and includes one or more across-the-line capacitors; a charging circuit that receives power from the first EMI filter and limits an amount of current passing from the first EMI filter to a DC bus; and a PFC circuit of a compressor drive that provides PFC between an output of the charging circuit and a generated first DC voltage. The PFC circuit includes: a rectification circuit that rectifies the power from the AC lines or a charging circuit output; and a second EMI filter connected downstream from the rectification circuit and including a DC bus rated capacitor. The second EMI filter outputs a filtered DC signal based on a rectification circuit output. The PFC circuit, based on the second EMI filter output, outputs the first DC voltage to the DC bus to power the compressor drive.