Patent ID: 11951855
Assignee: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO ELEAPPOWER LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 4:
5. The circuit of claim 4, wherein the polarity inversion circuit is coupled to the upper charging stage at the negative VSC1 DC terminal and to the lower charging stage at a positive VSC2 DC terminal, and includes at least one switch that interfaces the CSC with the dual inverter drive system, with the polarity inversion circuit having a first state and a second state; the first state coupling the positive CSC DC terminal and the positive VSC1 DC terminal, and coupling the negative CSC DC terminal and the negative VSC2 DC terminal; and a second state coupling the positive CSC DC terminal and the negative VSC1 DC terminal, and coupling the negative CSC DC terminal and the positive VSC2 DC terminal; wherein in the first state, power is directed to the electrical vehicle or the hybrid electric vehicle and in the second state, power is directed to the AC grid.