INCREASING THE PHASE TOLERANCE OF MAGNETIC CIRCUITS DURING CONTACTLESS ENERGY TRANSFER

摘要

The invention relates to an inductive energy transfer system with a primary-side coil arrangement (LP) and a secondary-side coil arrangement (LS), which in each case together with capacities (CP, CS) form resonant circuits (RESP, RESS), characterised in that the primary-side coil system (SPP) comprises two coils (LP) connected in series, the connection point of which (PP) is connected via a primary-side impedance (LPM) with an input terminal (3) of the circuit (1) supplying the primary-side resonant circuit (RESP) and/or in that the secondary coil system (SPS) comprises two coils (LS) connected in series, the connection point of which (PS) is connected via a secondary-side impedance (LSM) to an output terminal (4) of the circuit (2) downstream of the secondary-side resonant circuit (RESS).

主权项

1. An inductive energy transfer system, comprising:
a primary-side coil arrangement; and a secondary-side coil arrangement, wherein the primary-side coil arrangement and the secondary-side coil arrangement, together with respective capacitances, form respective resonant circuits; (a) wherein a primary-side coil system comprises two coils connected in series, wherein a primary-side impedance is connected with a first pole to a connection point of one of the coils connected in series and with a second pole to a centre point/centre tap of a voltage divider, plus or minus pole of an intermediate circuit of a circuit arranged to supply the primary-side resonant circuit of a controlled bridge inverter; or (b) wherein a secondary-side coil system comprises two coils connected in series, a connection point of which is connected via a secondary-side impedance to a centre point/centre tap of a voltage divider or to an output terminal of a circuit downstream of the secondary-side resonant circuit; or both (a) and (b).