Double rectifier for multi-phase contactless energy transfer system

摘要

Disclosed is a secondary-side rectifier system of an inductive n-phase energy transmission system with n greater than or equal to 3. The energy transmission system has in each phase (W, V, U) a resonant oscillating circuit, each with at least one inductor (Ls) and at least one capacitor (Cs). The secondary-side resonant oscillating circuits are magnetically coupleable to primary-side resonant oscillating circuits. The secondary-side resonant oscillating circuits are star-connected or mesh-connected and are connected to a rectifier via external conductors (L1...Lk...Ln). The rectifier has a series connection of n diodes (D1...Dk...Dn) with identical conducting directions. Rectifier has a smoothing capacitor (Cgr) connected in parallel with the series connection of diodes such that the output voltage (Ua) of the rectifier is applied to the connecting points (A1, A2) of the smoothing capacitor (Cgr). Each external conductor (Lk) is connected to the anode of a respective diode (Dk) for all k = 1 to N. The terminal (A1) is connected to the external conductor (L1) and the cathode of the Nth diode (Dn) is connected to the connecting point (A2).