公开(公告)号：WO2022069666A1

公开(公告)日：2022-04-07

申请号：PCT/EP2021/077003

申请日：2021-09-30

Applicant: JAGUAR LAND ROVER LIMITED

Inventor： KURUP, Vishnu ,  ZHU, Hui ,  CHOUDHARY, Manoj ,  JOSHI, Chinmaya ,  BURGSTALLER, Tobias ,  STAMFORD, John

IPC: B60L53/12 ,  B60L53/20 ,  H01F29/02

Abstract: A transformer circuit (100) for an electric vehicle comprises an input (104); an output (106); and a transformer (108) located between the input (104) and the output (106). The transformer (108) comprises a primary winding (110) connected to the input (104); and a secondary winding (102) connected to the output (106). At least one of the primary winding (110) and the secondary winding (102) comprises a first split winding (112) and a second split winding (114). The circuit (100) comprises switching means (116) configured to selectively connect the first (112) and second (114) split windings in series or in parallel in the circuit. Where the primary winding comprises the first split winding and the second split winding, the windings are connected to the input. Where the secondary winding (102) comprises the first split winding (112) and the second split winding (114), the windings (112, 114) are connected to the output (156).

公开(公告)号：WO2022069518A1

公开(公告)日：2022-04-07

申请号：PCT/EP2021/076748

申请日：2021-09-29

Applicant: JAGUAR LAND ROVER LIMITED

Inventor： KURUP, Vishnu ,  ZHU, Hui ,  CHOUDHARY, Manoj ,  JOSHI, Chinmaya ,  BURGSTALLER, Tobias ,  STAMFORD, John

IPC: B60L53/12 ,  B60L53/20 ,  H01F29/02 ,  B60L1/00 ,  B60L53/22 ,  H02J1/002 ,  H02J1/082 ,  H02J2207/20 ,  H02J2207/40 ,  H02J2310/48 ,  H02J7/02 ,  H02M1/0064 ,  H02M1/10 ,  H02M3/003 ,  H02M3/33573 ,  H02M3/33584

Abstract: A transformer circuit (100) for an electric vehicle comprises an input (104); an output (106); and a transformer (108) located between the input and the output. The transformer comprises a primary winding (110) connected to the input; and a secondary winding (102) connected to the output. At least one of the primary winding and the secondary winding comprises a first split winding (112) and a second split winding (114). The first split winding is configured for carrying a higher current than the second split winding. The circuit comprises switching means (116) configured to, where the primary winding comprises the first and second split windings, selectively connect the first split winding to the input, or connect the first and second windings in series to the input, and where the secondary winding comprises the first and second split windings, selectively connect the first split winding (112) to the output (106), or connect the first and second split windings (112, 114) in series to the output.